I am pleased to introduce this year’s edition of Building Efficiency, celebrating the outstanding accomplishments of our Group of Companies.
At A.G. Coombs, leadership is the foundation of all we do. This publication demonstrates our commitment to building strong relationships, pursuing our longterm strategic goals, and driving success for our clients, our organisation and our team members.
Leadership is woven into our culture, shaping our processes, standards and corporate behaviour. We are dedicated to leading the building services sector by empowering our people and adopting innovative technologies, systems and approaches that elevate safety, quality, efficiency and sustainability.
We uphold honesty and integrity, and we believe in starting meaningful conversations and guiding discussions on vital topics such as diversity, equity, inclusion and reconciliation.
These values are longstanding, founded in our principles of teamwork, respect and an unwavering pursuit of excellence at every level.
The A.G. Coombs Group Board stands firmly behind this commitment, guided by a clear strategic vision, robust governance and a focus on long-term growth and success.
Thank you for your ongoing support. We look forward to a bright and successful future together.
Murray Coleman OAM Non-Executive Chair A.G. Coombs Group
Managing Director's Message
We are living in a time of remarkable change. Rapid technological progress is opening new doors, while the realities of climate change are driving an urgent push for sustainability. These forces are shaping our mission to lead, innovate and raise the bar in the built environment.
In this issue of Building Efficiency, we spotlight the breadth of our building services solutions. This showcase demonstrates the power of our teamwork and the outstanding talent of our people — our greatest strength and the defining feature that distinguishes us in the industry.
Our team has delivered a variety of high-profile projects, from major healthcare facilities and underground rail stations to landmark commercial and entertainment venues, as well as large-scale data centre developments. We have also completed numerous smaller, yet equally important, projects for our clients.
Each project features the latest advancements in building services technology, ensuring that our designs and installations provide lasting value to owners, occupants and the wider community.
Our multidisciplinary maintenance and technical facility management teams play a vital role in supporting essential infrastructure across Australia. From hospitals and data centres to airports, banks, government buildings, commercial spaces, cultural sites, universities and shopping centres. Our work ensures safe, efficient and sustainable operations.
A.G. Coombs’ whole-of-life approach to building services continues to deliver meaningful results. Our expert Advisory team offers valuable insights and services that enhance project outcomes and drive improvements in building performance.
Offsite integrated fabrication remains at the core of our innovative delivery methods and we continue to lead the industry in this space. Our involvement in the BIM MEPAUS initiative, the Building 4.0 Cooperative Research Centre, and our pioneering Virtual Buildings Information System® are advancing digital transformation and improving construction industry productivity, safety and asset management outcomes.
We are steadfast in our Net Zero 2030 commitment, making significant strides in reducing our environmental impact. This includes our industry-leading electric trade vehicle pilot and the A.G. Coombs Circular™ initiative. We are equally committed to helping clients reduce their environmental footprint, especially through building electrification and our Carbon Roadmap® Net Zero programs. The addition of Butler Electrical to the A.G. Coombs Group has further strengthened our electrical capabilities.
Strength and high performance through diversity and inclusion remain central to our
values and our Diversity & Inclusion Action Plan builds on established programs within the A.G. Coombs Group.
This year, we have made notable progress in supporting the advancement of women in our industry and launched the milestone Murrungar Pty Ltd joint initiative with Indigenous partners. We are proud to champion awareness, foster understanding and drive positive change within our industry and the broader community.
The safety and well-being of our people, their ongoing development and a strong culture of collaboration and belonging are fundamental to our shared success. Our commitment to maintaining incident and injury free workplaces is unwavering.
Looking forward, the future for the A.G. Coombs Group is exceptionally promising. With enduring relationships, unmatched expertise and a reputation for leadership, innovation, and delivery excellence, we are excited to continue delivering outstanding results for our clients in the years ahead.
Russell Telford Managing Director A.G. Coombs Group
06. Timber, technology & temperature Atlassian Central
12. Shining new jewel Queen's Wharf Brisbane
14. The engineered core Frankston Hospital
16. Data takes off Sydney Airport
20. Making electrical waves Presbyterian Ladies’ College
22. Heritage meets high standards Melbourne Town Hall
24. Connecting community First Peoples' Health & Wellbeing Centre
26. Towards an inclusive future Advancement of women
28. Artful science of facilities management Creative Victoria
34. Silent threat Mould in buildings & HVAC systems
36. Concept to fabrication Informed Design
38. Conversations with impact Leadership Academy Conversation Series
40. Build grow nurture Murrungar
42. Perpetuating the vision Celebrating 80 years
44. In The News
48. Contact Us
Timber, technology & temperature
Melbourne Town Hall
Atlassian Central, Sydney
Data takes off Sydney Airport
Artful science of facilities management
Creative Victoria
Shining new jewel Queen’s Wharf Brisbane
Making electrical waves Presbyterian Ladies' College
Image: Atlassian Central Image: iStock.com Febin Thomas
Image: Jeremy Weihrauch
Image: iStock.com ribeiroantonio
In the heart of Sydney's emerging tech precinct at Central Station, a revolutionary project is reshaping the future of commercial building design. Atlassian Central, the world's tallest hybrid timber and steel commercial tower, represents more than just an architectural milestone –it embodies engineering solutions that challenge conventional approaches to mechanical services in high-rise construction.
Standing 39 storeys tall in the innerSydney suburb of Haymarket, and adjacent to Central Station’s Platform 1, the 1.4 billion Atlassian Central development, owned by Dexus and Atlassian, demanded mechanical solutions as innovative as the company that will call it home. A.G. Coombs, engaged through the Built-Obayashi joint venture (BOJV) has been developing advanced mechanical solutions for the project since involvement in the ECI (Early Contractor Involvement) phase in 2020.
The mechanical services engineering brief is extraordinary: To achieve some of the most ambitious energy targets ever set for an Australian commercial building while delivering superior indoor air quality and thermal comfort.
The building is targeting a 5.5-star NABERS Energy rating; 6-star Green Star certification; WELL and LEED ratings; the use of 100% renewable power; and 50% less embodied carbon (compared to a conventionally-constructed tower).
These ambitious sustainability targets need to be balanced with a 100% outside air system – exceptional for air quality, but typically challenging in helping to meet energy targets.
Redefining thermal comfort
According to Madeleine Moratti, Project Engineer at A.G. Coombs, the innovative approach incorporating thermal comfort principles is a key element of the mechanical design meeting these energy targets.
“The innovation lies in redefining comfort parameters through extended temperature bands, moving from the conventional 21-24 °C range to a broader 20-26 °C spectrum during winter and summer conditions respectively,” says Madeleine.
“This approach, based on predicted mean vote (PMV) methodology with a target of ±0.5, intuitively considers multiple comfort factors including clothing levels, occupant activity rates, air speed and radiant effects rather than simply maintaining fixed air temperatures.”
To validate this innovative thermal comfort approach, A.G. Coombs conducted extensive proof-of-concept testing in Denmark, working with specialised facilities to demonstrate that elevated air speeds from strategically-positioned ceiling fans could maintain comfort at the higher 26 °C setting.
The testing involved detailed mock-up scenarios combining passive radiant beams with ceiling fan arrangements, measuring airflow distribution patterns and actual PMV conditions within typical office bay configurations. This testing went beyond standard comfort reporting by providing comprehensive data on spatial air movement and the relationship between ceiling fan positioning and thermal comfort zones.
The ceiling fans represent an innovative application of domestic-style technology in a commercial environment.
“Rather than traditional commercial air distribution systems, these highquality fans create elevated air speed that enhances thermal comfort at elevated temperatures,” adds Madeleine. “Combined with overhead air supply systems and passive radiant beams, this creates a sophisticated comfort delivery system that challenges conventional HVAC design paradigms.”
Degrees of difference
The passive radiant beams differ from traditional ‘chilled beams’ because they perform both heating and cooling functions – an uncommon application
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that leveraged learnings from A.G. Coombs' work on the Metro Martin Place project. Testing demonstrated that these beams performed better in heating mode than initially anticipated, enabling their deployment for perimeter heating throughout Atlassian Central. This dual-function capability, combined with overhead air supply, creates a hybrid system that optimises energy performance while maintaining comfort.
The building’s plant configuration represents another significant technical innovation.
Traditional chilled water systems operate at 5-6 °C supply temperatures, but the Atlassian Central system will operate at 9 °C water temperature, enabled by the higher indoor temperature set points and enhanced heat transfer from the radiant beam systems. This elevated chilled water temperature delivers substantial energy savings through improved chiller efficiency and reduced pumping requirements.
The design also accommodates future flexibility so the plant can operate at a traditional 21-24 °C range if required, ensuring long-term adaptability while optimising current performance.
The building incorporates three distinct environmental zones optimising performance across different space types:
• Type A spaces feature air-conditioned environments with extended temperature bands and sophisticated control systems.
• Type B areas utilise mixed-mode ventilation that can transition between natural and mechanical ventilation modes depending on external conditions.
• Type C zones are naturally ventilated spaces integrated with the building’s automated façade and striking threestorey atrium areas featuring extensive landscaping and timber structural elements.
Variable volume diffusers throughout the building provide granular zonespecific control, with diffusers featuring intelligence to respond to zone requirements rather than relying on the broader variable air volume (VAV) systems serving larger areas.
This distributed control approach enhances both energy efficiency and occupant comfort by assisting the management of ventilation requirements and thermal loads.
Levelling up
The tower’s hybrid timber megastructure is comprised of a concrete core and structural steel mega floors at every four levels with services threading through carefully engineered penetrations in both materials. The complexity demanded precision engineering, particularly for the prefabricated ladder frames that simultaneously support mechanical services and structural loads around the building core.
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Atlassian Central
Project snapshot
• Value: 1.4bn
• Total floor area: Approx. 75,000 m²
• Site area: Approx. 3,500 m²
• Structure: Reinforced concrete (basement to 7th floor), steel and CLT (7th floor and above)
• Floors: 39 levels above ground
• Height: 182 metres
• Use: Offices (high-rise portion), accommodation and retail
“The steel frames, resembling a spider web structure around the building’s central core, represent a groundbreaking approach to service integration,” says John Deimezis, Project Manager at A.G. Coombs. “Unlike typical prefabricated frames that serve only mechanical systems, these installations carry the structural load of timber floors while also housing ductwork, piping and electrical wiring as the vertical risers for the project.”
The collaborative design process with steel contractors required sophisticated lifting calculations, pre-engineering certification and precise installation sequencing to ensure structural integrity while accommodating mechanical and other services.
Additionally, commissioning procedures will require carefully-controlled humidity management to prevent timber movement and cracking by limiting air conditioning to approximately 5% humidity change per week during system start-up to avoid ‘thermal shock’ to the timber structure.
The building’s plant configuration created significant logistical and engineering challenges. Major mechanical equipment on Level six serves the building up to Level 34, with additional plant rooms at Level 39 near the building crown.
This arrangement, chosen to maximise net lettable area in mid-level floors, requires high-pressure piping systems and larger equipment than would traditionally be distributed across multiple plant rooms.
Some of the air handling units measuring approximately 7x7 metres required careful installation coordination, with chillers pre-loaded before concrete completion and other equipment requiring specialised lifting and installation sequences.
“A.G. Coombs utilised extensive prefabrication throughout the project, manufacturing components at our Melbourne Integrated Prefabrication Facility including almost 20 pump, heat exchanger and other equipment skids for the Level 6 plant room alone,” comments John.
“The collaborative ladder frame construction with local steel contractors is a very innovative approach to integrating structural and mechanical systems, and
horizontal prefabricated elements reduced on-site installation time and complexity.”
Impact beyond HVAC
The project’s complexity extends beyond Atlassian's corporate spaces to include a 137-room YHA hybrid accommodation facility occupying Level 1 through Level 5, requiring separate mechanical systems designed for the hospitality application while sharing certain building infrastructure. This dual-occupancy arrangement demanded careful system segregation and independent control capabilities.
For the A.G. Coombs team, Atlassian Central represents more than technical achievement. It is a landmark project demonstrating the potential for innovative mechanical solutions in sustainable design.
“From day one, this project set out with highly ambitious design and sustainability goals so we had to engage innovative engineers who could work with the joint venture to help deliver on the client’s vision,” says Brad Ellis, Senior Services Manager from Built. “A.G. Coombs has been exceptional in their mechanical engineering design innovation and installation; including their ability to work closely and effectively collaborate with Built on this landmark project.”
Spanning 120,000 m2 – nearly 20% of Brisbane’s CBD – Queen’s Wharf is the largest private sector development in Queensland and has become a landmark on the city’s growing skyline.
With initial engagement commencing in 2020, A.G. Coombs has completed mechanical services installation at the 3.6 billion Queen’s Wharf Brisbane integrated resort development, delivering sophisticated building systems across multiple high-rise towers and entertainment facilities.
The A.G. Coombs scope encompassed mechanical systems for the two 10-level Star Grand Hotel towers (Towers 2 and 3); the 65-level Queen’s Wharf Residences (Tower 4); and specialised casino gaming environments including the Sky Deck and upper gaming areas.
Coordinated delivery under pressure
The project’s mechanical infrastructure featured a collaborative arrangement between multiple mechanical contractors with defined scope divisions. A.G. Coombs was responsible for connecting engineering systems and equipment to plant infrastructure, while maintaining complete responsibility for the Tower 4 mechanical systems including the dedicated rooftop central plant. Ellis Air provided chillers and riser pipework for Towers 2 and 3, along with central plant in basement areas.
This collective approach required precise coordination for mechanical
interfaces and system integration across the different contractor responsibilities. “A.G. Coombs was responsible for the installation of over 12,000 pieces of mechanical services, plant and equipment across residential, hospitality and entertainment applications,” says Lindsay Rose, Operations Manager Queensland, A.G. Coombs Projects.
The Queen’s Wharf Brisbane project timeline extended through unprecedented global supply chain disruptions, requiring adaptive procurement and logistics strategies. Originally scheduled for completion in 2023, the project navigated COVID-19 impacts, multiple Brisbane River flood events and international shipping constraints that necessitated air freight procurement for critical mechanical components.
Supply chain resilience became a critical factor when standard shipping timelines were drawn out significantly, resulting in air freight importation of fan coil units and other specialised equipment to maintain construction schedules.
Advancing prefabrication
A.G. Coombs deployed innovative roll-in methodology for prefabricated riser systems in the upper gaming
section of the development. These components were engineered and designed at the company’s Integrated Prefabrication Facility in Melbourne with local fabrication and assembly through regional supply chain partnerships.
“This hybrid prefabrication approach demonstrates A.G. Coombs’ national capability for modular construction capabilities,” adds Lindsay. “Engineering design, certification and quality assurance processes were maintained through our Melbourne facility, while fabrication was executed locally in Brisbane, reducing transport costs and supporting regional manufacturing capacity development.”
Tower 4 featured comprehensive rooftop central plant installation including air-cooled chillers, pump systems and associated mechanical infrastructure. This installation was completed within a six-week timeframe utilising the builder’s tower crane systems for equipment positioning. This residential tower incorporated 14 individual riser systems serving diverse mechanical requirements across its 65-level structure.
Complex infrastructure integration
Central plant configurations varied across building applications, with Tower 4
featuring dedicated rooftop mechanical plant while Towers 2 and 3 connected to basement-level central energy systems. This dual approach required sophisticated coordination of mechanical interfaces and system integration across different operational profiles.
The Queen’s Wharf Precinct required integration of new mechanical systems with heritage building preservation requirements and existing infrastructure constraints. The development’s position on Brisbane’s riverfront, combined with the need to preserve multiple heritage structures, required unique engineering solutions for mechanical system routing and installation.
Basement-level central plant systems serving Towers 2 and 3 called for sophisticated coordination with
Unearthing history
heritage building foundations and river-edge construction constraints. The mechanical infrastructure needed to accommodate the project’s phased opening strategy, with different building components becoming operational across an extended timeline from 2024 through to 2030.
Royalty in the city
“From Queensland’s largest basement excavation, to the 65-level Tower 4 residences, this project demanded contractors who could support our client in achieving their end vision for this precinct,” says Michael Sinclair, Regional Managing Director at Multiplex. “A.G. Coombs was one of our trusted partners in delivering excellence in mechanical services during a long and demanding project.”
The Queen’s Wharf Brisbane project showcases A.G. Coombs’ technical capabilities in delivering world-class infrastructure for Australia’s most significant urban developments under challenging conditions. The technical solutions developed and refined through this project contribute to the company’s capability portfolio for integrated resort, hospitality and mixed-use developments.
As Queen’s Wharf Brisbane continues its staged opening until 2030, it is much more than a construction project –it represents a convergence of historical significance, engineering innovation and urban transformation that positions it among the world’s most remarkable integrated developments.
134-year-old electrical cables known as ‘Edison tubes’ (pictured right*) were unearthed during excavation of the Queen’s Wharf site in 2018, remnants of Brisbane’s very first electricity grid. The tubes were designed by Thomas Edison and laid beneath William Street in 1884 to supply electricity to Queensland’s Parliament House. They enabled electricity to replace some 200 hot gas lamps within Parliament House. ‡
The 1.1 billion Frankston Hospital redevelopment represents the largest health infrastructure investment in Melbourne’s south-east. The project is being delivered by the Victorian Health Building Authority (VHBA) in partnership with Peninsula Health and the Exemplar Health consortium, which includes Lendlease as the design and construction contractor. A.G. Coombs is working alongside Lendlease to deliver a sophisticated mechanical services package that establishes new benchmarks for healthcare facility engineering.
The Frankston Hospital redevelopment has been designed to meet the demographic expansion and seasonal healthcare demands of one of Victoria’s fastest-growing regions. And with new specialist oncology services, operating theatres, paediatric wards and an expanded emergency department, every detail of the mechanical services required meticulous planning, design and installation.
The project’s mechanical infrastructure spans 16 levels of the new clinical tower, from basement plant rooms to rooftop installations. A.G. Coombs has delivered comprehensive mechanical services including central chilled water and heating hot water systems, 150 air handling units, air distribution and specialist ventilation and exhaust systems, and the electrical infrastructure for mechanical plant and equipment.
The building’s mechanical systems are arranged across multiple specialised plant rooms. The main central energy plant on level 13 features major equipment including chillers, cooling towers and heating hot water heat pumps.
Air handling plant serving the Acute tower is also located on Level 13 and 13M. The rooftop plant room integrates with the new facility’s helipad and required close design and installation coordination between multiple building systems in a very constrained environment.
The Podium level’s primary air handling plant room is located on Level 3 and serves the six-storey podium floors containing operating theatres, emergency departments and specialised care units. Installation in the Level 3 plant room required millimetre-precise coordination to accommodate a confined U-shaped configuration and close slab-to-slab height constraints.
Electrical infrastructure for the mechanical plant and systems was provided by Butler Electrical, an A.G. Coombs Group company.
Prefabricating the mechanical heart
Central to the project’s delivery methodology has been A.G. Coombs’ leading prefabrication capability which included fabrication and installation of 68 services riser modules, each measuring twelve by three by three metres, and
multiple central plant pump and fan modules. The scale and programming of this undertaking required multiple prefabrication and storage facilities in neighbouring Keysborough and Dandenong South, ready for despatch to match sequenced works.
The prefabrication approach also included large-scale horizontal services modules for the rooftop plant room –a development beyond previous methods that produced substantial time efficiencies.
“Manufacturing and fabrication were organised into sequential batches of 10, requiring precise engineering and documentation coordination to align with installation schedules,” says Dale Cadee, Senior Project Manager at A.G. Coombs Projects. “This systematic approach supported a continuous workflow from design through manufacturing to on-site installation, to fit the program of building works.”
Fresh air prescription
The systems provide 100% fresh air throughout the new tower utilising energy recovery ventilation (ERV) units to recover
energy from the discharge airflows for reuse. This system works to optimise indoor air quality and air conditioning energy usage in the building's diverse clinical environments.
The all-electric infrastructure eliminates natural gas heated systems while maintaining the precise environmental controls required for hospital operations. Heat pumps provide heating and domestic hot water requirements. The all-electric infrastructure significantly reduces carbon emissions from hospital operations.
A state-of-the-art building management system works to maintain stringent environmental controls throughout the facility while ensuring reliable operation and optimised energy consumption.
Logistic medicine
During peak construction periods, A.G. Coombs site numbers reached over 120 personnel engaged in multiple installation work fronts on multiple levels. The project’s progress depended on careful logistics coordination, managing the procurement, delivery to site and distribution of large volumes of
equipment and materials. With multiple concurrent major hospital projects underway in Victoria this logistical challenge was amplified by resource constraints throughout the supply chain.
The commissioning phase represented a large technical undertaking, with a team of 25 A.G. Coombs commissioning technicians conducting comprehensive systems testing and optimisation.
“The commissioning process encompasses everything from individual component testing to whole-building system integration, ensuring optimal performance across the varied clinical environments,” says Dale.
The detailed technical acceptance phase demonstrated that all systems met stringent healthcare facility standards ahead of the facility welcoming its first patients.
Community legacy
Once finished, the redeveloped hospital will have capacity to treat approximately 35,000 more patient episodes each year. This will cut wait times and reduce pressure on other Melbourne hospitals.
The sophisticated new mechanical systems will help ensure the redeveloped Frankston Hospital meets the community's needs providing the highest standards of indoor air quality, comfort, reliability and energy efficiency.
Project snapshot
• 150 air handling & energy recovery units
• 44,000 pieces of ductwork installed
• 11,000 site hours transferred to prefabrication
• 16 km of steel used in module frames
• 68 vertical riser modules
• 40 horizontal duct modules
• 8 pump modules.
Image: Supplied by VHBA and Exemplar Health
Images: Aran Anderson
Sydney Airport stands as one of Australia’s busiest aviation hubs, processing millions of passengers annually across its three terminals. Behind the scenes, maintaining optimal comfort conditions while achieving ambitious sustainability targets requires sophisticated mechanical systems operating at peak efficiency.
A.G. Coombs has emerged as a technical partner helping to drive this outcome, undertaking major central energy plant capital upgrades, delivering mechanical services maintenance and performing an international award-winning chilled water plant energy optimisation project.
The relationship commenced in 2013 with Sydney Airport engaging A.G. Coombs to complete a major central services chilled water plant upgrade in the T1 International terminal, and subsequently expanded into mechanical maintenance services across T1 and T2 Domestic.
In 2023, Sydney Airport entrusted A.G. Coombs with maintenance at T3 Domestic; a complex chiller replacement project in T3; and A.G. Coombs Advisory provided specialised energy efficiency consulting to support the airport’s ambitious sustainability objectives.
Next-level integration for T3 Chiller Replacement
Following on from the T1 chiller replacement success, A.G. Coombs was selected for the T3 chiller plant replacement project.
Michael Grayson, Project Manager at A.G. Coombs, led this complex undertaking which required the staged replacement of four end-of-life
large chillers with three new, highercapacity units, four new cooling towers, electrical and fire services upgrades, and modifications to the Building Management and Control System (BMCS).
Large chilled water refrigeration machines, known colloquially as ‘chillers’, generate the signifsicant quantities of cold water required to condition the air in the building.
New equipment was installed through roof hatches with minimal clearance using a very large 700-tonne crane, requiring six months of planning and close coordination with flight operations and ground traffic management.
“Continuous engagement with the airport team was critical, ensuring A.G. Coombs could program our works without interruptions to flight and airport operations or disruption to passengers,” says Michael.
“The project set out to significantly enhance cooling capacity within the existing plant footprint, while also delivering notable improvements in energy efficiency,” says A.G. Coombs Project Engineer, Patryk Dykas. He adds, “It also strengthened system resilience through the integration of additional pumps and the modernisation of critical electrical and fire protection infrastructure to meet current standards.”
In renewing the chilled water system in the plant room, A.G. Coombs conducted non-destructive testing to validate the use of existing pipework reducing unnecessary disruptions.
Waterproofing of the reinstated plant room roof and repurposed floor presented an innovation opportunity. Using 3D digital scanning technology to identify high and low points on the roof and floor, the A.G. Coombs team was able to apply targeted waterproofing treatments that significantly reduced client project costs.
Optimising efficiency
Sydney Airport has a goal of achieving Net Zero Scope 1 and Scope 2 emissions by 2030. “This focus on ambitious sustainability goals and energy efficiency requires innovative engineering solutions,” explains Michael Sue, Building Technologies Leader NSW/ACT at A.G. Coombs.
A detailed analysis of the operation of the T1 central chilled water plant revealed a key insight – the plant was not operating how it was intended to run.
This led to the development of a chilled water plant optimisation project using innovative machine learning and simulation techniques to improve the control logic of the chilled water plant and secondary pumping system. The project was undertaken in a close partnership between A.G. Coombs Advisory and Exergenics working with the Sydney Airport team.
The project achieved remarkable results: a 33.4% increase in efficiency with an annualised reduction in energy consumption of 1,742,000 kWh, and reduced attributable carbon emissions of 1,377 tonnes of CO2. Importantly, this was accomplished through optimised control strategies and without any equipment replacement.
Measurable impact
The T3 chiller replacement has delivered a 40% reduction in energy consumption compared to the original plant and the project was delivered with zero disruptions to terminal operations.
As building systems become increasingly complex, the A.G. Coombs and Exergenics optimisation methodology maximises efficiency in complex operating systems. The data-driven insights gained from these projects inform future equipment selection, staging parameters and operational strategies.
“At Sydney Airport, where seamless operation is critical, A.G. Coombs provide innovation, operational excellence and energy efficiency outcomes,” says Hamish Murphy, Senior Project Manager at Sydney Airport. “The combination of specialist mechanical engineering and installation expertise, leading project management performance with leading-edge data analytics provides the technical support we require for seamless and sustainable airport operations.”
Multi-award winning
On the national and international stage, A.G. Coombs and Exergenics were jointly awarded for the exceptional performance of the Sydney Airport International Terminal T1 Chilled Water Plant Optimisation project:
• 2025 Chartered Institute of Building Service Engineers (CIBSE) Building Performance Awards in London, UK for the “Best Digital Innovation –Project Delivery”
• 2025 International District Energy Association (IDEA) Innovation Awards in Minneapolis, USA for the “Joseph M. Brillhart Innovation Award Honourable Mention”
• 2024 Australian Institute of Refrigeration Air Conditioning and Heating (AIRAH) Awards in Melbourne for both “Excellence in Innovation” and “Excellence in Sustainability”.
When the founders of the Presbyterian Ladies’ College (PLC) welcomed the first cohort of 60 students to their East Melbourne school in 1875, they could never have imagined that 150 years later, the college would host a world-class sports and aquatic centre at its campus home in Burwood.
Completed in March 2025 after a compressed 18-month project timeline, Presbyterian Ladies’ College’s new sports, aquatic and fitness facility, the Joan Montgomery Centre, was built by ADCO Constructions with Butler Electrical* engaged to provide electrical, data and communications services for the project.
As a greenfield construction project, the facility required a new, dedicated electrical supply from the network –reflecting the project’s substantial footprint and energy requirements.
“The scale and size of the facility meant that a dedicated, electrical incoming service supply was necessary,” explains Darren Blake, Business Development Manager at Butler Electrical, part of the A.G. Coombs Group.
“Early site works involved installing a new, high-voltage transformer and freestanding main switchboard positioned over 150m from the new building, with the addition of hundreds of metres of underground services and electrical infrastructure to support external and landscape lighting, fire and security systems cabling and the data and communications network.”
From underground, all the way to the heart of the facility, the project's technical complexity demanded innovative solutions that went beyond a conventional electrical installation.
Human-centred design
Butler Electrical reviewed the original specifications, transforming conceptual plans into practical, maintainable systems that prioritised performance, user experience and long-term operational efficiency.
Careful consideration was given to ensure LED lighting installed met the highest standards of quality, safety, performance and function. The functional use of each space was assessed, and lighting chosen to enhance the space, whilst ensuring the comfort of occupants and users.
In the main pool hall, lighting was strategically positioned to avoid direct glare issues for swimmers performing backstroke in the eight-lane, 50m swimming pool. The multi-sports indoor complex, a space designed to cater for a range of activities including basketball, netball, volleyball and badminton, also presented bespoke lighting requirements.
“Careful lighting design was critical to the use of this space, with each sport requiring different lighting characteristics,” says Darren. “The large ceiling sweep fans, motorised backboards and motorised nets in this multi-use space also influenced the selection and placement of the lighting.”
Branching out the network & staying connected
One of the project’s most significant technical achievements was reimagining the school’s communications infrastructure.
“Working in collaboration with the college’s ICT department, we re-engineered PLC’s communication network with a redundant and diverse pathway arrangement,” Darren explains. “This star network with a ring main redundant pathway required the Butler Electrical team to recable parts of the existing campus while coordinating with PLC’s ICT department to maintain operations in a live school environment.”
The end result provides unprecedented resilience for the school’s critical communications infrastructure.
Sustainable project management
Sustainability considerations were incorporated throughout every aspect of the project’s technical execution. The installation of a substantial 700 kW rooftop solar photovoltaic (PV) system, delivered in partnership with specialist contractor Energy Aware, represents one of the largest educational solar installations in the region.
Butler Electrical installed three 22 kW electric vehicle (EV) charging stations (with provision for three additional future charging stations) and commissioned a charging billing system for payment processing.
The team’s approach to sustainability extended beyond technology to operational practices, working closely with suppliers to minimise on-site waste through careful material ordering and reduced transport carbon emissions via consolidated site deliveries.
The project maintained an enviable safety record, with no reportable incidents throughout the entire construction period. This achievement was facilitated by the A.G. Coombs Group Management System, along with comprehensive site safety management planning and detailed
task-specific safe work method statements.
“Butler Electrical's onsite leadership worked closely with the ADCO Constructions' site team to ensure that works were completed safely in a high-risk live school environment, with zero incidents,” says Don Sherwood, Senior Project Manager at ADCO Constructions.
Collaboration, completion & recognition
The project team faced significant pressure to complete the facility in time for the college’s official opening in March 2025. This deadline demanded close coordination between Butler Electrical, ADCO Constructions and numerous trades and stakeholders.
According to Nick Shashkoff, Project Manager, PLC Joan Montgomery Centre, the Butler Electrical team “expertly solved complex problems that arose during the delivery phase… providing alternative solutions which were financially viable and/or sustainable from a longterm operational focus.”
Leading educational institutions demand sophisticated, sustainable and future-
Award winning
Butler Electrical was the winner at the 2025 National Electrical and Communications Association (NECA) Victoria Awards for the PLC Joan Montgomery Centre project in the Medium Commercial Project category for technical excellence, innovation and outcomes achieved in the landmark project.
ready infrastructure – where cutting-edge innovation meets educational purpose.
The Joan Montgomery Centre provides PLC with a world-class environment that is transforming the way students engage with sports and physical education.
Image: Chris Matterson
Completed in 1870, the Melbourne Town Hall is at the heart of the city’s cultural and civic activity and stands as one of the city's most significant architectural landmarks. Within the Main Hall, ornate coffered ceilings, the largest concert organ in the Southern Hemisphere and murals by Napier Weller all date back generations. When the City of Melbourne decided to upgrade the building's fire protection system, it prioritised specialists who could navigate the delicate balance of modern safety requirements, a live operational facility and heritage preservation.
The project encompassed both the Council office areas and the Main Hall itself, requiring the replacement of approximately 7,000 sprinkler heads while maintaining the building’s operational requirements and protecting its priceless heritage features.
“We had to carefully consider the history of the site including the circular leadlight dome in the Council Chambers and ornate 21-metre ceilings in the Main Hall,” says David Haynes, Operations Manager at Walker Fire Protection.
“Several of the sprinkler heads slated for replacement dated back to the 1940s, requiring careful planning and preparation to accommodate all potential scenarios involved in their removal.”
Water at heights
Walker Fire Protection drew on its success at 2 Treasury Place, another heritage-listed building in Melbourne’s CBD, where it pioneered the use of ‘Dropmaster™’ technology for similar work. This innovative vacuum system would prove crucial to the success of the Melbourne Town Hall project.
When Walker Fire Protection was tasked with upgrading the fire sprinkler system at Melbourne's heritage-listed Town Hall, the project presented both technical and heritage preservation challenges. What emerged was a masterclass in precision engineering, innovative problem-solving and meticulous project management.
“When draining a fire sprinkler system, some water always remains in the pipe that drops to the sprinkler head,” explains David. “The Dropmaster™ is attached to the sprinkler system and creates a vacuum within the pipe. It literally siphons and holds that water back, so when you change the sprinkler head, there’s no water leakage and no mess.”
This seemingly simple innovation addressed one of the most significant challenges in heritage building sprinkler works – preventing water damage to sensitive environments while ensuring minimal disruption to daily operations.
Understanding the unique demands of working within a functioning civic building, Walker Fire Protection developed a comprehensive strategy that prioritised care over speed. The team deliberately over-resourced the project and shifted its focus to heritage protection.
The project was structured around a flexible timeline that accommodated the building’s ongoing civic functions, including concerts and official events. This required careful coordination with City of Melbourne staff, working out of hours and the use of specialised equipment, including elevated work platforms that could safely navigate around the Town Hall’s pendant lights and glass ceiling features.
Overcoming heritage complexities
Working with sprinkler heads that had been in place for over 80 years presented unique technical challenges. With many of the original fittings corroded and difficult to remove,
there were heightened concerns about potential pipe thread breakage.
The team’s methodical approach included starting with the office areas to identify and resolve any technical issues before tackling the more challenging Town Hall spaces. This strategy proved invaluable when working 21 metres above ground level among irreplaceable architectural features. Using a specialised boom was essential for safe access to the sprinkler heads.
With the boom equipment, protection of the heritage floors throughout was equally critical. This attention to detail extended to every aspect of the operation, ensuring that when Council staff arrived each morning, the building appeared exactly as they had left it – clean, undamaged and fully operational.
Yesterday, today & tomorrow
Melbourne Town Hall has hosted appearances and performances by renowned artists including the Beatles, Billy Thorpe & The Aztecs and the debut of Australian opera icon Dame Nellie Melba. Preserving this history and ensuring the ongoing fire and life safety of this Melbourne landmark exemplifies Walker Fire Protection’s ability to deliver holistic services that include technical solutions, precision planning, operational requirements and sensitive heritage considerations.
Many significant connections often begin with a mutual purpose. For First Peoples’ Health and Wellbeing and A.G. Coombs, this connection was made through the Korin Gamadji Institute. What started as an informal conversation would result in a transformative project, demonstrating the power of industry collaboration in service of community need.
The First Peoples’ Health and Wellbeing Centre (FPHW) in Frankston, Victoria, is a landmark two-storey healthcare facility created to serve the Indigenous community from across the Mornington Peninsula. The journey to deliver the completed facility required coordinated action.
The project mobilised quickly after the initial meeting between Karinda Taylor, First Peoples’ Health and Wellbeing CEO and Russell Telford, A.G. Coombs Group Managing Director. Within weeks a project team was assembled including A.G. Coombs Advisory, A.G. Coombs Projects, Walker Fire Protection, Butler Electrical, strategic partnerships with Armitage Jones for project management and BuildCorp responsible for construction.
For A.G. Coombs, the FPHW Centre project involved an integrated approach, providing mechanical services, electrical and fire systems from design and fabrication through to installation and ongoing service. This combined model proved to be important for managing the budget and ensuring the close coordination required between the different building elements and systems to achieve the program.
Opening the shell
The 982 m2 existing FPHW building on the Nepean Highway required a complete transformation from a 1980s precast panel office building in need of a considerable
upgrade to a modern medical facility with individual GP offices, psychology services, maternity care, early childhood services and community spaces.
“The electrical infrastructure represented the most complex element of the build,” says Kyle Paten, Senior SCD Project Manager at A.G. Coombs. “Butler Electrical installed a dedicated incoming electrical supply connected to an existing high voltage transformer nearby to provide the new facility’s electrical requirements."
The electrical services scope extended to the design and installation of comprehensive power distribution systems to support a range of healthcare equipment, specialised lighting for medical examination rooms and a robust data network to support modern healthcare IT systems.
The facility features individual body protected electrical circuits for each consulting room, emergency power systems for critical medical equipment and energy-efficient LED lighting throughout the building to reduce ongoing operational costs.
Working within the constraints of the existing concrete construction, the new heating, ventilation and air conditioning (HVAC) systems required sophisticated zoning strategies to address structural limitations.
Image: photo credit
A.G. Coombs Advisory designed a multizone HVAC system that could control temperature and air flow independently in different areas, creating airflow and pressure hierarchies, essential for medical facilities where patient comfort and infection control are required. System reliability and energy efficiency were factors in equipment selection.
To meet current fire protection and life safety standards Walker Fire Protection modified the existing hydrant and hose reel system with hydrant flow testing conducted to confirm adequate water pressure. New smoke detection and emergency warning and intercommunication systems (EWIS) were designed and installed along with new fire extinguishers positioned to achieve full building coverage.
Engineering for community
A.G. Coombs’ design approach went beyond technical specification to consider the facility’s cultural aspect. It was important to keep connection to country while providing the clinical standards required for medical practice. Mechanical systems were configured to ensure maximum natural light penetration through large glazed panels, delivering a quality indoor
environment without compromising the sight lines that the occupants would have to surrounding natural elements.
The electrical design incorporated flexible lighting controls that could help transform spaces from clinical examination environments to community gathering areas, supporting the facility’s dual role as both healthcare provider and cultural centre.
Officially opened in mid-2024, the FPHW Centre has become a vital community hub. Along with its modern healthcare facilities, it features an early parenting centre and a social enterprise café that employs young Indigenous people to provide employment pathways and skills development.
For A.G. Coombs the significance of FPHW Centre is connected to its concurrent building services work on the nearby Frankston Hospital redevelopment, this 1.1 billion project is delivering improved healthcare outcomes to the entire region.
True legacy
The Mornington Peninsula is home to one of Victoria’s fastest-growing Indigenous populations, and until
this facility was created the region had no dedicated healthcare services for First Nations people.
“This Frankston facility is the only one in this region dedicated to serve the Indigenous community’s healthcare needs and provides early parenting services, social enterprise opportunities and community gathering spaces,” explains Kate Brocker, Executive Officer at First Peoples’ Health and Wellbeing.
“A.G. Coombs has been a highly valued and trusted partner to help us achieve this very positive facility for this First Peoples’ community.”
While A.G. Coombs approached FPHW as a community project, the relationship has evolved into a true partnership. According to Russell, “The First Peoples’ Health and Wellbeing Centre in Frankston is an excellent representation of practical community impact through the A.G. Coombs 'Innovate' Reconciliation Action Plan and our philosophy in supporting Indigenous owned and managed organisations.”
In the traditionally male-dominated building services industry, A.G. Coombs Group is writing a new narrative –one where diversity and inclusion is welcomed and cultivated. The company understands that meaningful change requires bold action, sustained commitment and a willingness to challenge the status quo.
“With women’s participation rates in the built environment sector sitting at 15%*, we cannot ignore the diversity and inclusion challenges that lay ahead nor our responsibility to be advocates and industry trailblazers in this space,” says Kerry Ryan, A.G. Coombs Group Non-Executive Board Member and Diversity & Inclusion Committee Chair.
Kerry’s candid reflection on her own career-family journey reveals exactly why the A.G. Coombs Diversity & Inclusion Action Plan she champions matters: “Transitioning in and out of the workforce during the years I was having my children was probably the most challenging aspect of my career journey.” Kerry’s experience reveals some of the real-world challenges A.G. Coombs is helping to progress.
Beyond equality
The A.G. Coombs Diversity & Inclusion (D&I) Action Plan represents more than 50 specific actions organised around three key pathways:
• Indigenous pathways
• Advancement of women
• People of all abilities.
The plan’s transparency and accountability make it a living, breathing roadmap for A.G. Coombs. “The D&I Action Plan drives change and shows commitment to people internally, but also commitment externally whilst creating all-important accountability. We’re holding ourselves accountable as a responsible, leading organisation,” adds Kerry.
This accountability has facilitated meaningful progress. Female apprentice representation at A.G. Coombs has grown from 10% to 30%, with 20 female apprentices attending the company’s inaugural ‘Advancement of Women’ Leadership Academy event in Victoria. This occasion was followed up by similar events in New South Wales and Queensland overseen by the Advancement of Women Reference Group established to promote networking, community building, leadership development, industry engagement and advocacy.
These are but some of many A.G. Coombs initiatives targeting advancement of women, Indigenous employment and opportunity for people of all abilities.
Role model behaviour
Recognising the importance of positively influencing the next generation of talent, female A.G. Coombs technical personnel designed and led a ‘Build Your Future’ STEM program targeting Year 9 and 10 female and non-binary students. The science, technology, engineering and math (STEM) career-focused program empowers students with hands-on experience and explore career opportunities in the Building Services industry.
There’s a genuine understanding at A.G. Coombs that true inclusion requires belonging. “Creating a sense of belonging provides the foundation to success which is really important,” explains Kim Hesline, Executive Manager Employee Services at A.G. Coombs. “This philosophy manifests through attainable role models who show emerging young women that success is within reach.”
Inclusion across all dimensions
The A.G. Coombs ‘Innovate’ Reconciliation Action Plan, now in its second iteration, works in tandem with the company’s diversity efforts.
A.G. Coombs has forged meaningful partnerships with organisations including the First Peoples’ Health and Wellbeing Centre; Korin Gamadji Institute and the Melbourne Indigenous Transition School (MITS) – genuine investments in Indigenous communities and talent development.
The company is also helping advance indigenous and non-indigenous athletes achieve sporting success. Through its partnership with Softball Australia, A.G. Coombs supports the Stacey Porter National Indigenous Talent Identification Academy and the Tanya Harding Women’s Leadership Academy. Russell Telford, A.G. Coombs Managing Director explains, “This partnership reflects our shared belief in strength and high performance through diversity and inclusion.”
“A.G. Coombs’ commitment to people of all abilities recognises that inclusion encompasses neurodiversity, physical differences and varying capabilities, acknowledging that diverse cognitive approaches enhance innovation and problem-solving,” added Aaron Clark, Executive Leader – Social Procurement, Inclusion & Engagement at A.G. Coombs.
A model for transformation
The approach to successful growth at A.G. Coombs transcends headcount metrics. The company’s environmental, social and governance (ESG) reporting framework tracks progress across multiple dimensions, ensuring accountability and continuous improvement.
Recognition has followed effort. Walker Fire Protection’s Lisa Dalgleish, Operations Manager – Service was recognised by the National Fire Industry Association (NIFA) with the inaugural ‘Women in Fire Protection Award’ and Walker Fire Protection with the national ‘Champion in Diversity’ award.
The A.G. Coombs Group currently have more than 120 apprentices across a range of disciplines. A.G. Coombs maintains an average apprentice completion rate exceeding 94%, significantly higher than the national average of 50% and testament to creating supportive environments where diverse talent thrives.
A.G. Coombs believes that meaningful diversity and inclusion work requires sustained leadership commitment, systematic planning, community partnerships and courage to challenge industry norms.
“We’ve been working on meaningful and sustained change over a long period of time and, whilst there are visible and positive results, our journey continues,” reflects Russell. “We remain committed to reinforcing and extending our partnerships with many social value enterprises, collaboration partners and the broader community in creating meaningful employment opportunities as well as implementing decisive actions to deliver the best social, cultural and participation outcomes.”
STEM program designed and led by A.G. Coombs technical personnel (pictured from left): Rebecca Andrews, Mechanical Engineer; Jenna Comazzetto, Virtual Design & Construction Draftsperson; Elaine Coventry, Electrical Engineer; and Helena Ly-Lu, Fire Engineer.
Behind the scenes of Melbourne’s cultural spaces, where precious artworks hang in climate-controlled galleries and theatrical performances captivate audiences, a team of facilities management specialists ensure building services play their part in a seamless performance.
The Creative Victoria portfolio spans a wide range of creative and cultural facilities, assets and collections – from the Heide Museum of Modern Art in Bulleen to the Malthouse Theatre in Southbank –and represents a diverse and demanding scope of facilities management.
A.G. Coombs involvement with this portfolio commenced in 2006 with the Heide Museum of Modern Art, where the company was approached to consider the exacting demands of art gallery climate control.
“What started as a straightforward HVAC engagement rapidly evolved into the intricate science of preserving cultural treasures,” says Ken O’Brien, Senior Contract Manager at A.G. Coombs Service.
“This wasn’t simply about keeping visitors comfortable – it was about safeguarding irreplaceable cultural assets.”
Evolution over time
What had begun as a number of single-site mechanical services contracts with A.G. Coombs Service evolved into a broader suite of specialised services. In 2022, A.G. Coombs' Integrated Technical Management (ITM) was awarded the facilities management contract covering mechanical, fire, plumbing, security and electrical service lines across nine separate facilities within the broader Creative Victoria portfolio, following a competitive procurement process.
“One of the main advantages of partnering with ITM is the consistency and continuity it brings to service delivery. This approach streamlines maintenance activities and improves efficiency in the overall facility management process,” said Terri Hosking, General Manager at Integrated Technical Management.
The nine assets read like a who’s who of the Melbourne arts, creative and cultural landscape: ACCA (Australian Centre for Contemporary Art) (pictured above), Arts House, Chunky Move and the Malthouse Theatre, all clustered in Southbank's arts precinct; St Martins Youth Arts Centre in neighbouring South Yarra; the heritage-listed Heide Museum site in Bulleen; the industrial-chic Meat Market and Metropolitan Hotel in
Image: Gollings
Photography
The Australian Centre for Contempory Art (ACCA).
North Melbourne; and the 50 Perry Street circus performance space in Collingwood.
“The technical complexity of maintaining these venues extends far beyond conventional building management,” says Dominic Spagnuolo, Integrated Technical Management Contract Manager. “Each venue presents its own distinct requirements and challenges, from the artwork preservation considerations of ACCA and Heide, to the safeguarding of the heritage listed Meat Market and Metropolitan Hotel.”
Cultural preservation takes centre stage
Fire protection in cultural venues requires specialised knowledge. Balancing the safety of patrons, preservation of valuable artifacts and maintaining the integrity of historically significant buildings within this portfolio of nine assets has been entrusted to the ITM self-delivery model through Walker Fire Protection.
Creative Victoria
As the State Government body dedicated to championing, growing and supporting Victoria's creative industries, Creative Victoria oversees a portfolio of State-owned facilities ranging from contemporary galleries to heritage performance and multi purpose spaces. The facilities entrusted to A.G. Coombs Integrated Technical Management, Walker Fire Protection and A.G. Coombs include:
• ACCA
• Chunky Moves
• Arts House
• 50 Perry Street
• Heide Museum of Modern Art
• Malthouse Theatre
• Meat Market
• Metropolitan Hotel
• Music Market (until 2024)
• St Martins Youth Arts Centre.
Walker Fire Protection undertakes scheduled inspections across all venues, ensuring compliance with Australian Standards while navigating the unique challenges each space presents,” explained Kelly Horton, Senior Contract Manager at Walker Fire Protection. “Testing fire alarms and evacuation systems requires careful coordination with venue operations to avoid disruption to exhibitions and visitors, and minimise the impact on the general operations of these venues.”
Alongside fire control systems, air quality remains a high priority for many of Creative Victoria’s venues.
The technical HVAC requirements at the Heide Museum include specialised filtration systems to prevent dust accumulation on artworks, 24/7 humidity and temperature control to prevent artwork degradation, and precision lighting systems that illuminate without damaging delicate materials. Detailed quarterly logs of temperature levels, humidity control, filtration, cooling and humidification are captured and provided by Integrated Technical Management to the client.
These aren’t abstract requirements. Art galleries must maintain strict environmental controls to qualify for insurance coverage and exhibition loans from major institutions. Temperature fluctuations or humidity variations can cause irreversible damage to irreplaceable paintings, sculptures and historical artifacts.
The orchestration challenge
Key to the successful management of this portfolio is the seamless coordination required between multiple specialised teams leveraging a self-delivery model complimented by external subcontractors where required.
As Contract Manager for Creative Victoria, Dominic leads Integrated Technical Management’s responsibilities under the contract. He coordinates with incumbent contractors, including Walker Fire Protection and A.G. Coombs Service. He also oversees the engagement and delivery of other ITM specialist subcontractors as needed to meet seasonal demands.
Operating on behalf of a public sector client adds an additional layer of coordination. Part of the State Government Department of Jobs,
Precincts and Regions, Creative Victoria operates under strict procurement and compliance requirements. Every quote must demonstrate a strong value for money solution, every modification documented, and every service delivered measured against predetermined key performance indicators (KPIs).
According to Dominic, the secret to successful coordination is complete transparency and systematic communication. “Integrated Technical Management’s client portal provides Creative Victoria with real-time visibility into maintenance schedules, defect reports, and quote status in support of their Asset Management Accountability Framework obligations. This client-focused technology enables efficient project management while maintaining the audit trails essential for government accountability.”
A model for the future
The Creative Victoria asset portfolio represents something unique in Australian facilities management. A value proposition described by the ITM team as a ‘total building solution’: One that incorporates a comprehensive, multi-disciplinary approach to cultural venue maintenance whilst balancing technical excellence and operational efficiency.
“The success of this partnership demonstrates that complex facilities management challenges require not just technical expertise, but the ability to understand and respect the cultural significance of the spaces being maintained,” says Paul Galassi, Facilities Manager at Heide Museum of Modern Art.
In helping to preserve some of Melbourne’s most important cultural assets, A.G. Coombs Integrated Technical Management, Walker Fire Protection and A.G. Coombs Service have become guardians of something far more valuable than buildings: the preservation of spaces where art and culture flourish.
In the complex world of modern construction, where buildings are created with sophisticated technical ecosystems of interconnected services, one critical question emerges: when completed, how do you ensure all building systems perform as intended? The answer lies in the specialised expertise of Independent Commissioning Agents who bridge the gap between design intent and operational outcomes.
At its core, commissioning is the process of transitioning installed individual building services systems into a fully functional, integrated and interoperable set of services in an optimised operating building. However, the key to success is commissioning design reviews and planning before building commences.
The Independent Commissioning Agent (ICA) role can be defined as assisting with planning of that process and then validating the process occurs properly on the client’s behalf.
An evolving legacy
Commissioning also extends beyond system activation, it can encompass the critical post construction optimisation period where buildings are fine-tuned through the seasons to operate at peak efficiency, ensuring that building services perform as intended and deliver maximum value to building owners.
Since its introduction in 2003 by the Green Building Council of Australia, Green Star certification has played a key role in transforming building practices.
Over the past 22 years, the evolving role of the ICA highlights recognition that thorough commissioning is essential for all buildings – regardless of their sustainability rating.
The ICA process provides multidisciplinary advice to help building owners and facility managers transition into the day-to-day operation of their buildings post construction.
This deep operational knowledge becomes invaluable when applied at the early stages of new builds, enabling the team to anticipate challenges and address them during the design and construction phases; eliminating costly changes.
Commissioning Authorities
Whilst ICA expertise is often applied to Green Star projects, Commissioning Authorities (CxAs) fulfil a parallel, but distinct role under the international LEED (Leadership in Energy and Environmental Design) rating system.
From A.G. Coombs Advisory’s perspective, CxAs represent the same fundamental commissioning expertise applied, with
a few subtle changes, via a different certification framework.
“The CxA role under LEED emphasises systematic verification that building systems perform according to design intent and operational requirements,” explains David Odd, ICA Leader (NSW & ACT) at A.G. Coombs Advisory. “This includes comprehensive documentation review, functional performance testing and ongoing monitoring protocols. More and more the LEED rating is being applied in Australia for international benchmarking.”
The whole-of-life advantage
The whole-of-life perspective provided by A.G. Coombs is drawn from decades of experience in designing, delivering, operating and maintaining building services. This experience informs the commissioning of new projects with lessons from existing building operations in three management approaches:
1. ICA Services serve building owners and long-term tenants, providing independent oversight of Green Star and LEED projects.
Case Study: Australian Bragg Centre for Proton Therapy
The Australian Bragg Centre for Proton Therapy project in Adelaide exemplifies the complexity and importance of specialised commissioning services. This cutting-edge medical facility required absolute precision in its building systems to support advanced proton therapy equipment –technology where any system failure could have critical implications.
2. Commissioning Management supports builders on complex projects, leveraging technical expertise to optimise operational performance and proactively assist the builder to manage the commissioning interface between multiple trades.
3. Transition to Operate assists facility managers receiving new buildings, assisting them to understand and optimise building systems during the critical handover period.
The soft landings revolution
Recent changes to Green Star requirements have introduced the Soft Landings Framework. This approach brings a focus on the building user’s experience as a key stakeholder input.
“The soft landings framework provides guidance right through the project delivery lifecycle from inception and briefing through to handover and into operations,” notes David Odd. “For projects where building services capital works exceed 20 million, Soft Landings implementation is now mandatory to achieve Green Star verification and handover.”
A multi systems lens
A key differentiator in the A.G. Coombs approach is the multi-discipline whole-of-team approach.
Rather than relying on single-discipline experts, our specialist engineers are deployed from all disciplines –mechanical, electrical, building control systems, hydraulic, fire protection, vertical transportation, metering, monitoring and renewable energy systems – with each reviewing their specific systems before synthesis by the lead ICA.
“Bringing a multidisciplinary team to the table and their specific expertise with our ICA lens over the entire process is a clear advantage” explains David. “This multi-system approach ensures that nothing is missed in increasingly complex building systems.”
Commissioning services expertise by A.G. Coombs Advisory ensures that new buildings perform as intended – safely, efficiently and sustainably – throughout their entire lifecycle for all building stakeholders.
A.G. Coombs Advisory served as the LEED CxA, bringing multidisciplinary expertise to help steer this technically demanding project. The scope included sophisticated mechanical, electrical, hydraulic and fire protection systems, all requiring seamless integration to support the facility’s missioncritical operations.
The project demonstrated the value of engaging commissioning expertise early and maintaining that relationship through to operational tuning.
“The complexity of the Australian Bragg Centre demanded absolute precision in every building system and the independent commissioning expertise that A.G. Coombs Advisory delivered gave us confidence that our facility was ready to support life-saving medical technology from day one,” said John Muir, Services Manager at Lendlease.
Image:
JKTP
Brush with excellence FACILITIES UPGRADE
As one of the world’s largest paint and coatings companies, Dulux embodies excellence in every aspect of its operations. So, when the air conditioning systems at its Melbourne headquarters began failing, it was time for change. What followed was a showcase of A.G. Coombs’ complete services, undertaking a comprehensive upgrade without disrupting operations for the building’s 1,000 occupants.
What started as a straightforward assessment requested by building owner’s representative, CBRE, quickly revealed the complexity of the challenge. A.G. Coombs Advisory assessed that the ageing packaged air handling units and supporting mechanical services were inefficient and inadequate to reliably deliver the comfort levels expected by the building occupants.
A.G. Coombs Advisory undertook a comprehensive feasibility review and presented three options to the client team, ranging from a basic replacement through to a comprehensive improved solution.
“The best option addressed the temperature comfort issues Dulux staff members were experiencing and offered better energy efficiency with reduced operational costs,” says Jamie Park, Leader – Technical Advice at A.G. Coombs Advisory.
Fresh coat of innovation
This scope necessitated transforming the central thermal plant infrastructure.
“Given the substantial footprint of the new equipment, an external plant enclosure was required at ground level, as the existing rooftop arrangement was inadequate to accommodate the upgraded systems,” says Jamie. “A new
central thermal energy plant included two high-efficiency 4-pipe heat pumps to provide chilled water and heating hot water for the building, replacing the old direct expansion (DX) package equipment. Chilled water and heating hot water was reticulated via extensive new pipework through the basement car park up to all new fan coil units on the ground floor and large new air handling units (AHUs) on the building’s roof.”
The selected HVAC solution featured an upgrade of the existing air distribution system with modern variable air volume (VAV) boxes with perimeter zones incorporating heating hot water reheat coils and comprehensive ductwork modifications throughout all floors to combine existing with new systems. This approach fundamentally changed the building’s air conditioning philosophy.
Following completion of the design documentation by A.G. Coombs Advisory, the project was tendered and ultimately awarded to A.G. Coombs Projects. The project delivery phase was led by Rory Long, Project Manager at A.G. Coombs Projects.
Navigating a live building
Perhaps the project’s greatest complexity lay not in its technical scope, but in its delivery.
“With Dulux staff remaining in the building throughout the program of works, every aspect required meticulous planning and thorough stakeholder engagement,” explains Rory. “We had tight timing allocations to work on each of the five levels with strict contractual deadlines of only eight weeks allocated per floor.”
The staged approach required isolating each floor sequentially, installing protection systems to maintain fire egress routes, demolishing existing ceilings and ductwork, and installing new equipment – all while maintaining business operations above and below.
The most critical phase involved replacing the rooftop packaged air conditioners (PACs) AHUs while maintaining heating and cooling for the building’s 1,000 occupants.
Weekend work
The solution required exact planning and tactical precision.
“We retained two old, packaged units in situ and ran temporary ductwork to ensure sufficient airflow to all sections of the building,” Rory describes. “We then scheduled works over the weekends to remove the redundant units, install the new units, connect the new chilled and heating water pipework, and commission the system before Dulux staff returned on Monday morning.”
This staged weekend sequencing, repeated over separate phases, ensured continuous comfort for occupants while systematically upgrading the entire system.
“As the head contractor, we were also required to organise building permits and engage structural engineers and acoustic consultants to provide a detailed design for the new plant enclosure,” says Rory.
A.G. Coombs called upon its specialist companies to undertake essential works:
• Walker Fire Protection managed the fire protection systems throughout the building, ensuring compliance and safety during the extensive works program.
• Butler Electrical was responsible for critical modifications to the main switchboard to support the new mechanical equipment and the installation of new electrical submains from the main switchboard to the new external plant room.
Climate of success
Matching technical excellence with effective stakeholder communication, weekly client meetings provided twoweek look-ahead programs. These were provided to all building users setting out upcoming works, site deliveries and any planned disruptions.
The on-time and on-budget delivery of this complex project is a showcase of A.G. Coombs’ scope of capabilities. The integrated approach provided by A.G. Coombs Advisory, A.G. Coombs Projects, Butler Electrical and
Walker Fire Protection resulted in a smooth process from design to delivery.
“From early advice through to project planning and completed delivery, the A.G. Coombs’ service was seamless,” says Yuying Lim, DuluxGroup Projects. “The manner in which A.G. Coombs communicated and engaged with us every step of the way provided us with confidence. We now have an outstanding new air conditioning system providing comfort for our people.”
While mould can affect buildings anywhere, certain climatic conditions create an ideal breeding ground where the risk escalates exponentially. For facilities across North Queensland, the tropical climate cultivates an environment where moisture control through the careful use of heating, ventilation and air conditioning (HVAC) systems becomes absolutely critical.
Perfect storm
Mould is an essential part of the natural environment, breaking down dead organic matter and returning nutrients to the ecosystem. However, within the built environment, this silent invader can establish colonies within weeks, causing extensive property damage, serious health complications and financial losses that extend far beyond initial remediation costs.
Mould requires three key elements to flourish: spores, moisture and organic matter. In North Queensland’s warm, humid environment, controlling moisture becomes the critical factor in prevention.
“Understanding the main contributors to mould growth and how HVAC systems can impact those is an important consideration,” says John Bourne, Sustainability Leader at A.G. Coombs Advisory. “Issues can arise when building operators focus solely on temperature control while ignoring humidity management. HVAC systems play an important role in preventing, controlling and remediating mould outbreaks.”
Image: Peter Bennetts
James Cook University (Townsville campus pictured) takes a proactive approach to mould mitigation on their building projects in Cairns and Townsville.
When mould colonies establish themselves in buildings, they release millions of spores that circulate through ventilation systems, creating indoor concentrations hundreds of times higher than ambient levels. Health risks can escalate significantly for building occupants, while financial and insurance implications for asset owners can also prove devastating.
“Worst-case scenarios involve extensive building works, including replacement of contaminated building fabric and air distribution systems,” says Iain Bonnar, General Manager at A.G. Coombs Queensland. “For hotel and hospitality venues as an example, the reputational damage can prove equally costly, with guest complaints and operational disruptions creating long-term business impact.”
Proactive design at James Cook University
The work of A.G. Coombs with James Cook University (JCU) on building projects in Cairns and Townsville demonstrates the importance of proactive design, process assurance and rigorous testing. The scope of works, framed by LEED Gold* and Green Star rating requirements, focuses on comprehensive building envelope testing and Independent Commissioning Agent (ICA) services.
“We know if we are introducing outside air for ventilation, it’s intentional outside air and not unintentional infiltration through gaps and leaks,” explains John Bourne. “A.G. Coombs has been integral in planning and testing building envelopes to ensure all aspects of the facades are as airtight as possible.”
The approach by A.G. Coombs on the JCU projects underscores three critical control strategies in mould control:
• maintaining proper air balance between supply and exhaust rates;
• ensuring intentional rather than accidental outside air introduction; and
• implementing robust commissioning processes. These strategies are vital in ensuring that buildings remain resilient against mould, especially in challenging climates.
Effective remediation
Without prevention, expert remediation is required. The typical remediation process in a badly affected building involves multiple phases: initial assessment identifying root causes; development of solution options from basic fixes to comprehensive upgrades; and effective implementation. Remedies may include significant air conditioning plant and distribution ductwork replacement.
Working in an operational building presents additional challenges, but sophisticated three-dimensional point cloud scanning technology can be used to ensure replacement systems will fit within existing spatial constraints. Offsite prefabrication of replacement plant and system elements can minimise disruption.
Technology meets innovation
Russ Sampson, Regional Leader North Queensland at A.G. Coombs, emphasises that many mould issues in the region stem from historical design compromises.
“Proper conditioning of incoming outside air is important, but often these pre-treatment systems were valueengineered out post-design to reduce capital costs,” explains Russ Sampson. “This creates a challenge with much of North Queensland’s existing building stock, where older buildings aren’t equipped with the air pre-treatment systems now considered standard practice.”
Modern mould prevention and remediation now includes improved design approaches and, increasingly, specialist technologies. Contemporary design practice has seen a change in ductwork insulation. For example, rather than the traditional internally lined ductwork with perforated acoustic insulation, hospitals now specify external insulation and separate acoustic attenuators despite higher costs and increased spatial requirements.
Building management and control systems play an important role in ongoing monitoring and control. Properly configured systems can help ensure HVAC systems maintain indoor conditions within an optimal humidity range and provide early warning of pressure imbalances, humidity digressions and equipment malfunctions that may lead to mould growth.
The Path Forward
For building owners and facility managers, and particularly those in Northern Queensland, proactive mould management is far more cost-effective than reactive remediation.
Good design and installation, regular preventative maintenance – including scheduled coil cleaning, filter replacement and plant room housekeeping – remains fundamental.
Staying ahead of potential issues through vigilant monitoring and timely intervention is the best defence against the silent threat of mould.
A.G. Coombs Advisory Notes
A trusted resource for facility managers and asset owners, offering clear, actionable guidance on complex building services issues. With over 65 topics available, Advisory Notes help property professionals stay ahead of regulatory and industry changes.
Download the Mould in Buildings and HVAC Systems Advisory Note and more
It is commonly said that to be informed is to be equipped with the foresight and awareness to confront challenges.
The A.G. Coombs Virtual Design & Construction team is harnessing ‘Informed Design’ to break through the design-to-fabrication challenge barrier.
A.G. Coombs has long been a pioneer in prefabrication within the mechanical services industry, taking an increasing amount of work off-site to improve quality, site safety and overall project efficiency. But achieving massive economies of scale through standardisation in the construction sector has yet to reach its obvious potential, with every project design starting from scratch.
“The solution to combat this inefficiency came from a savvy integration of two Autodesk* technologies – combining the product-focused capabilities of Inventor, with the building information modelling of Revit to create what has been labelled Informed Design,” says John VanCuylenberg, Virtual Design & Construction (VDC) Leader at A.G. Coombs. “We established design workflows and fabrication systems integration that works for building services – a true first for our industry.”
Create once, repurpose in perpetuity
Nicholas Walsh, Modelling Coordinator –Integrated Prefabrication at A.G. Coombs was a key architect of this transformation, developing what he describes as a fundamental shift from traditional workflows. “Our approach not only standardises the virtual model itself,
but also integrates a highly-detailed drawing into the model. The result is a system where mechanical drafter-modellers can focus on their expertise while automatically generating standardised structural drawings ready for fabrication output.”
The true power of Informed Design is realised through file libraries created by the A.G. Coombs VDC team. These files represent a paradigm shift that transforms construction from a perpetually bespoke ‘make and remake’ industry into one capable of achieving automotive industry-scale efficiencies through intelligent standardisation.
By embedding years of fabrication knowledge directly into their digital products – complete with precisionengineered tolerances, fabrication-ready specifications and built-in assembly logic – these libraries eliminate the traditional cycle of redrawing, checking and coordinating – processes that typically consume weeks of project time.
What makes these libraries truly powerful is their ability to compress complex multiparty workflows into streamlined digital pipelines effectively encoding decades of engineering expertise into every file.
Nicholas uses the example of a rooftop frame designed to hold pipes – a seemingly simple steel structure that reveals layers of embedded intelligence. Every notch, hole and tolerance has been carefully engineered not just for structural integrity, but for fabrication efficiency and seamless assembly.
The frames now feature precisely positioned notches that function like puzzle pieces, eliminating guesswork for fabricators. Where welders once relied on tape measures and edge lines to position components, the parts now only fit together one way – correctly. It's like industrial-scale Meccano, with each piece containing a legacy of fabrication knowledge.
John emphasises that their efforts are not a ‘set and forget’ process. “Our goal is to just move faster,” he states, acknowledging the rapid pace of technological change. “While digital content might be easily replicated, the accumulated knowledge and wisdom embedded within our workflows results in client-focused advantages.”
For clients facing increasingly compressed timelines, Informed Design offers something more valuable than cost savings: Certainty.
Industry recognition & global visibility
Informed Design innovation by A.G. Coombs hasn't gone unnoticed.
The company received a 2024 Air Conditioning and Mechanical Contractors' Association (AMCA) Award in the Engineering & Technical category in recognition of its innovative combination of software and resulting efficiencies. Autodesk also recognised the innovative marriage of Revit and Inventor in the application of building services design. “Direct feedback from Autodesk confirms that some architects have adopted this approach, but this is the first time it has been embraced and successfully utilised in building services globally,” John reveals.
The Informed Design system has moved beyond proof-of-concept to active deployment. A major data centre project in Melbourne saw 95% of content prefabricated using these standardised products. Despite heightened complexity and variability challenges, hospital projects offer the potential for repeatable components like horizontal riser modules and pump skids to be productised.
This innovative methodology challenges the traditional “siloed” nature of the construction industry, where value is
often lost between stages and at the project conclusion. Informed Design counters this inefficiency by ensuring that value is retained and enhanced throughout the project lifecycle, ultimately benefiting the client through increased speed, efficiency, accuracy, no rework and improved collaboration.
Dismantling industry silos
Informed Design represents a viable pathway toward artificial intelligence (AI) integration. By creating standardised products and consistent data structures, A.G. Coombs is building what John calls its “training set” – the foundation for future AI applications in building services design.
As the construction industry grapples with labour shortages, compressed timelines and demands for greater efficiency, A.G. Coombs has demonstrated that innovation doesn't require abandoning proven workflows – sometimes it means elevating them through the intelligent integration of existing tools and technologies.
In an industry where technical expertise often takes precedence, A.G. Coombs has placed human development at the heart of its business strategy. The Leadership Academy Conversation Series represents more than a training initiative –It personifies a progressive approach to self-awareness, personal growth and leadership excellence.
The creation of the A.G. Coombs Leadership Academy embodies the company’s ethos that sustainable business success is fundamentally tied to the development of its people.
“Culture isn’t about mission statements on walls. It’s about creating an environment where every individual can thrive and achieve their personal best,” says Russell Telford, Managing Director at A.G. Coombs.
This engrained belief led to the launch of the Leadership Academy Conversation Series – an initiative reflective of the A.G. Coombs’ three pillars of leadership. These pillars democratise leadership development across every level of the organisation, transforming leadership from a hierarchical privilege to a shared responsibility:
• Role Model Behaviour empowers every individual to demonstrate leadership through daily actions, regardless of position.
• Peer Influence stands as the second pillar and shines a light on selfawareness and an understanding of what the individual brings to their team and the wider organisation.
• Leading Others redefines leadership as a fundamentally selfless role focused on creating environments where others can thrive and achieve their personal best, fostering growth mindsets and generating purpose throughout the organisation.
Words that matter
The impact of the Conversation Series lies not just in its influential roster of speakers – from Olympic champion
Cathy Freeman OAM to business leaders including Tasmanian Devils CEO, Brendon Gale – but in the resulting ecosystem of impressive individuals connected to the A.G. Coombs Leadership Academy.
This organic growth demonstrates the program’s authentic appeal and credibility. The content spans diverse themes from elite sport to business innovation, providing rich, varied perspectives on leadership, resilience and high performance.
The Leadership Academy Conversation Series is creating timeless content and themes that resonate across generations. “We can fast-forward to 2035, watch the video content and it will still retain the same relevance and impact,” adds Russell. This evergreen quality ensures sustainable value and ongoing relevance for the organisation’s development programs.
Leadership Academy Conversation Series interviews
• Brendon Gale
Former CEO Richmond Football Club and CEO Tasmania Devils
• Cathy Freeman OAM
Australian Olympian
• Cara Black
Former tennis doubles world No. 1
• Clint Bizzell
High performance consultant
• James Tomkins
Australian Olympian
• Katie Brennan
Captain, Richmond AFLW
• Liz Quinn
Culture & leadership specialist
• Shane McCurry
High performance leadership
• Sharni Norder
Former Captain, Australian Netball team and former Vice Captain, Collingwood AFLW
• Stewart Krelsheim
Assistant Chief Fire Officer, Country Fire Authority
• Wayne Schwass
Mental health advocate and former professional
Australian Rules footballer.
A shared experience
The reach of the Conversation Series extends beyond the workplace, with employees sharing content with their families. This ripple effect amplifies the program’s impact, creating value that extends into personal lives and communities.
The Conversation Series anchored by leading journalist and presenter, Tiffany Cherry, doesn't exist in isolation but integrates seamlessly with A.G. Coombs’ comprehensive Leadership Academy development curriculum which includes 15 distinct internal training programs, from foundational continuous improvement courses to the advanced ‘Leading Edge’ leadership program spanning many hours of intensive development.
This integration allows the Conversation Series content to be repurposed into targeted learning modules, creating sound bites and visuals that support specific program objectives. The content becomes a living curriculum that enhances formal learning experiences while providing standalone value for individual development.
The power of self-awareness
A spotlight on self-awareness as the cornerstone of effective leadership is one of the most transformative aspects of the Conversation Series. This enduring theme of self-awareness creates a multiplier effect throughout the organisation. “When individuals understand their impact on
others, they can consciously choose to create positive influences, turning every interaction into a leadership opportunity,” explains Russell.
A.G. Coombs’ investment in the Leadership Academy Conversation Series recognises that developing people isn’t purely about internal benefits – it’s about creating leaders who can contribute to industry advancement and social responsibility. “When you invest in developing the whole person, you create stronger teams, better decision-making, more resilient organisations and improved community outcomes,” comments Russell.
Authenticity matters
The Conversation Series represents a progressive model in corporate leadership development. One that recognises leadership as both a universal capability and a personal journey. By combining high-quality content, diverse perspectives, practical frameworks and genuine investment in individual growth, the series creates sustainable value that extends far beyond traditional training metrics.
In a highly competitive industry facing skills shortages and disruption, the A.G. Coombs Leadership Academy provides an authentic approach that attracts talent, develops capability and cultivates a culture where people actively seek opportunities to work, grow and contribute.
Clint Bizzell sharing his leadership insight with journalist, presenter & sports commentator, Tiffany Cherry.
Signalling a fundamental lift from corporate social responsibility to genuine economic empowerment, A.G. Coombs and its Indigenous partners have launched a capability partnership. With a mission to redefine how Australia's construction and property industries engages with First Nations peoples and businesses, ‘Murrungar’ tells a story of deep cultural significance.
Image: Salty Ones
The word Murrungar originates from the Kirrae Whurrung language of southwest Victoria, meaning ‘to build, grow and nurture’ – a fitting foundation for an initiative that aims to do exactly that for Indigenous participation in the built environment sector.
A 10-year journey
The genesis of Murrungar [pronounced “ma-rung-gar”] goes back over 10 years to a relationship forged at the Richmond Football Club, where Aaron Clark, Executive Leader – Social Procurement, Inclusion & Engagement at A.G. Coombs, served as Director of the Korin Gamadji Institute, overseeing community work and the club’s reconciliation action plan (RAP). Under Aaron’s leadership, Richmond Football Club was the only sporting organisation to achieve ‘Elevate’ status for its RAP, the highest tier of reconciliation commitment.
Through this work, Aaron connected with Russell Telford, Managing Director at A.G. Coombs. What started as collaboration on reconciliation initiatives has evolved into a profitfor-purpose enterprise designed to transform procurement in the building services industry into an authentic force for Indigenous economic empowerment, community capability and cultural expression.
True economic empowerment
Murrungar represents a revolutionary approach that challenges the traditional paradigm of Indigenous engagement in corporate Australia. Rather than positioning First Nations businesses as recipients of charitable support, the initiative recognises them as commercially-viable partners.
“For too long, First Nations businesses have been misunderstood as social causes rather than an opportunity for economic success through differentiation,” says Aaron. “Murrungar aims to drive meaningful progress toward economic self-determination.”
The initiative taps into what the banking sector identified* as a potential 50 billion Indigenous economy by 2030, positioning Murrungar to capture opportunities in a sector where Aboriginal knowledge systems – particularly in environmental sustainability and land management –offer unique competitive advantages.
Russell Telford, Managing Director at A.G. Coombs sees this commercial approach as fundamental to Murrungar’s authenticity. “It completely shifts the dial from charity to commercial reality. For A.G. Coombs it’s about being true to who we are while recognising broader positive impacts for industry and strengthening Indigenous-owned businesses.”
The shift from welfare-based thinking to economic empowerment addresses fundamental issues of inequality through sustainable career opportunities rather than temporary assistance. “Murrungar harnesses the power of everyday procurement to enable Indigenous-led design, create skilled employment opportunities and reinvest value into First Nations communities through economic empowerment,” notes Aaron.
Profit-for-purpose
Central to Murrungar’s values is what Aaron describes as a ‘profit-forpurpose’ model of business where a percentage of revenue is funnelled directly into community outcomes such as STEM scholarships, career pathways and sporting leadership initiatives. This approach looks to nurture talent through reinvestment in Indigenous employment, leadership and sport-led community programs.
The initiative has targets that extend beyond simple employment metrics. Murrungar seeks to create careers rather than contracts, implementing targeted skills pathways, mentoring and leadership opportunities designed to uplift entire families. This approach recognises the collective nature of Aboriginal culture and the ripple effects of economic empowerment throughout communities.
An Indigenous business ecosystem
Operationally, Murrungar functions as a capability partnership between A.G. Coombs and Indigenous professionals. The majority Indigenousowned structure of Murrungar enables other Aboriginal and Torres Strait Islander businesses to connect and collaborate within the broader A.G. Coombs network.
Murrungar looks to build best-in-class services that embed Indigenous capability from apprenticeships and project management to supply chain coordination and facility management.
“At our core is ensuring we embed Indigenous excellence into the supply chain validating our services as certified, quality assured and cost-competitive just like our non-Indigenous peers," says Aaron. “Our approach is to build, grow and nurture a world-class Indigenous-led supply chain ecosystem that delivers high performance with fresh, culturally-guided thinking.”
In an increasingly transparent society, the construction sector faces mounting pressure to meet government social procurement requirements and corporate environmental, social and governance (ESG) commitments. Murrungar positions itself as both facilitator and direct provider in meeting these obligations with integrity and impact, offering clients a sophisticated approach to Indigenous engagement that goes beyond token gestures.
A cultural bridge
Acting with purpose and leading with respect, Murrungar serves as a cultural bridge between corporate, government and community. It draws on Aaron Clark’s extensive experience in non-profit community work, creating a robust business model that nurtures partnerships that are culturally-respectful, values-aligned and built to last.
Murrungar aims to be an exemplar for how corporate Australia can move beyond reconciliation toward genuine economic partnership with First Nations peoples. In combining A.G. Coombs’ 80 years of industry expertise with 60,000 years of Indigenous knowledge systems, Murrungar is building something unprecedented – a truly collaborative approach to Indigenous capacity, growing pathways and nurturing culture.
In an era where corporate mergers and acquisitions are common, few Australian companies can claim an unbroken 80-year journey of private ownership, sustained growth and unwavering core values. Building services specialist A.G. Coombs stands as a remarkable exception, ensuring this legacy is properly documented in the 80th anniversary book titled “Perpetuating the Vision”.
1945–1960
Foundations of a Visionary Enterprise
Allan George Coombs starts a plumbing business with a clear goal: to build something lasting. Early projects including the 1956 Olympic Village set the tone for innovation and quality.
1982–2000
Leadership, Resilience & Strategic Growth
Through economic challenges, restructure and strengthen capabilities. Acquisition of Thos. Walker & Sons. Celebrate 50 years.
2016–2019
Consolidation, Culture & Community Impact
Major projects and contracts across Australia. Launch Reconciliation Action Plan. Shared ownership deepens.
2022–2025
Shaping the Future with Purpose
Shift to Net Zero. Commitment to diversity and inclusion, innovation, sustainability and developing next generation of leaders.
1960–1981
Pioneering Air Conditioning & Major Projects
Embrace air conditioning and mechanical services, delivering complex projects; Royal Children’s Hospital and Collins Place – redefining what’s possible.
2000–2015
Whole of life & Embracing Innovation
Whole-of-life model, Advisory, Walker Fire and ITM commence. Expand interstate, embrace prefabrication. Transition beyond founding family.
2020–2022
Navigating the COVID-19 Crisis
Pandemic pivot, essential services delivered. Personnel, clients and community supported. Emerged united and stronger.
Image: National Archives of Australia
Image: Jacinta Lewis
The journey to document A.G. Coombs’ story began well over a decade ago, driven by the recognition that invaluable company history was at risk of being lost with many long-serving employees in post-retirement,” recalls Bryon Price, Strategic Development Director at A.G. Coombs. “There was a concerted focus on preserving the stories and experiences of the company’s long standing contributors.”
The resulting history book, A Singular Vision, launched in 2015, captured the essence of the first 70 years of A.G. Coombs. The decade that followed played out in a manner few could have predicted.
Future past
For A.G. Coombs’ leadership, historical documentation represents a careful balance between honouring legacy and driving innovation. “We’ve always understood there is much to learn from history, but we must also embrace the future,” says Russell Telford, Managing Director at A.G. Coombs.“The A.G. Coombs book is about celebrating our origins and journey, and documenting this in a way that contributes to our strong culture today and beyond.”
This philosophy manifests in practical ways throughout the organisation. The company maintains some selective customs that may have been judged outdated in many other organisations –an annual all-personnel awards dinner, 40 and even 50 year service awards, retirement honours, 21 years of service watches, training and young achiever awards, and safety awards. “These are important people focused traditions that underpin our company culture. They’re a part of our DNA,” notes Russell.
Corporate historian Marcella Hunter, who authored both the original 70 year and the updated A.G. Coombs 80 year books, brings a clear perspective to the importance of such projects. “You only see successful companies go on to produce corporate histories,” observes Marcella. “A.G. Coombs has clearly been a success story over a sustained period.”
Contemporary relevance
Due for release in early 2026, the 80th anniversary edition maintains its original narrative energy in documenting more recent events. Marcella notes: “If anyone wants to appreciate the strong culture at A.G. Coombs, one only needs to read the COVID chapter, because the company’s frequently referenced core values played a huge part in helping it navigate this very challenging time.”
This 80th anniversary updated edition may be among the first corporate histories globally to dedicate substantial coverage to the impact of COVID-19.
“A.G. Coombs came out of the COVID-19 pandemic even stronger than when it went in,” adds Russell. “We attribute this resilience to the company’s diversified strategies and excellent situational leadership – knowing when to be authoritative, when to be consultative and supportive, as well as when to challenge ourselves.”
Culture & continuity
For A.G. Coombs, historical documentation represents far more than an anniversary commemoration. Every new employee receives a copy of the book, creating immediate connection to the company’s legacy. The impact is particularly pronounced
on mature-age recruits who view their career move as a lifetime decision rather than another stepping-stone.
One aspect that particularly resonates with Russell is that the book recognises contributions across all levels of the organisation along with executive achievements. “Our trade-based people are our frontline every day. The updated edition highlights how the company evolved from a trade-based operation to a sophisticated technical services provider. There’s some wonderful individuals and contributors over our history and the book passes their stories onto the next generation,” adds Russell.
Treasured legacy
The privately-owned Australian company’s commitment to historical documentation reflects deeper strategic thinking. As Bryon aptly summarises, “We respect the past and embrace the future. A philosophy that views historical understanding as essential for future success.” In an industry increasingly dominated by multinational corporations, A.G. Coombs’ sustained independence and cultural continuity is a clear competitive advantage.
As A.G. Coombs marks its 80th anniversary with continued growth and industry leadership, the investment into historical documentation reflects a sophisticated understanding of organisational development.
The 80th anniversary book captures more than just a decade of growth –It’s a demonstration of how enduring values navigate contemporary challenges. Perpetuating the vision.
Reinforcing safety through reflection & connection
At A.G. Coombs, we believe no task is so important that it should compromise a person’s safety.
On 28 April, in recognition of the United Nations’ “World Day for Safety and Health at Work,” more than 1,400 A.G. Coombs employees and subcontractors across Australia paused to reflect on the importance of safety in their workplaces. From major project sites to office locations, teams gathered in groups –large and small – to engage in meaningful
conversations about safety, wellbeing and our shared responsibility.
Events like this reinforce our commitment to injury-free workplaces and a proactive, people-first safety culture. These moments of connection are a powerful reminder that safety is not just a system –it’s a mindset.
A.G. Coombs Canberra Certified as Accredited Recycler
A.G. Coombs Canberra operation has once again been certified as an Accredited Recycler in the ACT Government’s Sustainable Business Program –achieving Waste Minimisation Accreditation for the seventh consecutive year.
Despite covering a small geographic area, the A.G. Coombs Group in Canberra – incorporating A.G. Coombs Service and A.G. Coombs Advisory, Integrated Technical Management and Walker Fire Protection – is responsible for managing, maintaining and supporting building services for a significant number of high-profile organisations, institutions and national icons across the ACT.
Sustainability is embedded in every aspect of the team’s operations. Recycling and reuse are prioritised with staff, contractors, subcontractors and suppliers, supported by structured systems and ongoing training.
“Our clients can be confident that every service we provide is backed by accredited systems that reduce environmental impact,” said Katie Gulizia, Contract Manager at Integrated Technical Management. “It’s a commitment we share across our team and with our partners.”
This continued accreditation highlights A.G. Coombs’ leadership in sustainable practices and its contribution to a circular economy – helping clients meet their environmental targets through high-performing, responsible solutions.
Image: Greg Brave shutterstock.com
Softball
Australia & A.G. Coombs unite to champion inclusion
& leadership in sport
A.G. Coombs is proud to announce a landmark three-year partnership with Softball Australia, reinforcing a shared commitment to excellence, inclusion and community impact.
This strategic alliance supports two transformative initiatives: the Stacey Porter National Indigenous Talent Identification Academy and the Tanya Harding Women’s Leadership Academy
These programs are central to Softball Australia’s vision for inclusive pathways and leadership development in sport.
Aligned with A.G. Coombs’ Diversity & Inclusion Action Plan, the partnership will empower Indigenous athletes and female leaders, while also supporting national softball teams – the Aussie Spirit and Aussie Steelers – on the global stage.
“Together, we are investing in the future of Australian softball,” added Sarah Loh, CEO at Softball Australia.
A.G. Coombs Group will also be the inaugural local event partner for the WBSC Women’s Softball World Cup Finals 2027 in Redcliffe, Queensland, further strengthening the partnership and backing female athletes from grassroots to the world stage.
“We are proud to extend our support for Softball Australia at such a pivotal moment,” said Russell Telford, Managing Director of A.G. Coombs Group. “The WBSC Women's Softball World Cup in Redcliffe will inspire the next generation and reflects our shared belief in the power of sport to unite communities, champion diversity and create lasting impact.”
Images: WBSC
In addition to our University of Melbourne native tree planting event (pictured), A.G. Coombs was pleased to support NRW celebrations with like-minded clients across the country, including:
• Spring Place by ISPT, Melbourne
• Game Time Coffee with Walker Fire Protection
• HQ North Tower, Brisbane Cromwell Property Group
• “Get Your Reconciliation On!” community event at Frankston Foreshore.
Celebrating reconciliation through collaboration & community
A.G. Coombs was proud to collaborate with the University of Melbourne for a special National Reconciliation Week (NRW) native tree planting event.
The event brought together clients, co-tenants and partners to celebrate our shared journey toward reconciliation, while showcasing local Indigenous businesses and service providers.
As Australia’s Leading Building Services Specialist, we understand the importance
of building meaningful relationships with the communities we work with every day.
Through our 'Innovate' Reconciliation Action Plan and broader corporate social responsibility initiatives, we remain committed to fostering lasting, positive change.
Award-Nominated Winery Decarbonisation
The Kooyong and Port Phillip Estate Winery decarbonisation and electrification initiative, delivered by A.G. Coombs Advisory and Thermal Energy Systems (TES), has been recognised as an outstanding example of decarbonisation – earning a nomination for “Project of the Year” in the Engineers Australia 2024 Victoria Excellence Awards.
“This project was a great example of how A.G. Coombs Advisory collaborates and works with like-minded organisations like TES to bring about positive and futurefocused electrification and decarbonisation outcomes,” said Jamie Park, LeaderTechnical Advice at A.G. Coombs Advisory.
Located on Victoria’s Mornington Peninsula, the winery engaged A.G. Coombs Advisory in mid-2021 to review and upgrade its heating infrastructure. The project aimed to improve system reliability while advancing the winery’s sustainability goals.
A.G. Coombs Advisory developed a tailored solution that included the installation of a new electric heat pump plant and integration of solar energy initiatives.
To deliver the preferred option, A.G. Coombs partnered with TES, ensuring a seamless design and installation process.
In a landmark regional initiative, the Australian Government, AREMA and leading industry partners have united to support the phaseout of hydrochlorofluorocarbons (HCFCs) across 12 Pacific Island Countries under the Montreal Protocol.
HCFCs are being phased out primarily due to their contribution to the depletion of the ozone layer and their high potential for global warming.
A.G. Coombs is proud to have contributed to the detailed design and manufacture of purpose-built training pods at its Integrated Prefabrication Facility in Melbourne. These pods – equipped with tools and resources
for best-practice servicing of refrigeration and air-conditioning systems – are now empowering technicians across the Pacific.
Nine countries, including Samoa, Vanuatu and Papua New Guinea, have already received pods, which are being integrated into Technical Vocational Education and Training (TVET) curricula to ensure sustainable capacity building.
VBIS Centre Stage at 2025 IHEA National Conference
A.G. Coombs was pleased to support the 2025 Institute of Healthcare Engineering, Australia (IHEA), National Conference in Sydney, where leaders in healthcare engineering gathered to explore the future of infrastructure and innovation.
Among the key contributors was Nathan Semos, Executive Manager of Virtual Buildings Information System (VBIS), who presented “Future-Proofing Healthcare Infrastructure: The Role of Data Standardisation and the VBIS Standard in Digitisation.”
Nathan’s presentation highlighted the transformative role of VBIS in enabling consistent asset classification and
structured data capture across Victoria’s health sector. As a mandated standard for major health infrastructure projects, VBIS is helping to streamline digital engineering processes and support long-term asset performance.
“This initiative reflects our commitment to regional collaboration and environmental stewardship,” said Bryon Price, A.G. Coombs Strategic Development Director.
“Standardised data is the foundation of resilient, high-performing healthcare infrastructure,” said Nathan. “VBIS empowers teams to make informed decisions and unlock the full potential of digitisation in futureready healthcare environments.”
A.G. Coombs Group
Melbourne | Sydney | Canberra | Brisbane | Townsville
Head Office:
26 Cochranes Road Moorabbin VIC 3189 Australia
The A.G. Coombs Group is a privately owned Australian group of companies that provides an integrated range of technical services for all systems in buildings, from design through to installation, commissioning, maintenance and ongoing operation and management. Established in 1945, A.G. Coombs has a national capability with major operations on Australia’s eastern seaboard.
A.G. Coombs Advisory provides quality advice and consulting services across numerous disciplines including mechanical, electrical, hydraulics and fire protection services and building technologies. A.G. Coombs Advisory is Australia’s leading provider of Green Star Independent Commissioning Agent (ICA) services for projects requiring Green Star Certification.
+61 3 9248 2700 | agcoombs.com.au/advisory
A.G. Coombs Projects
A.G. Coombs Projects leverage a National Centre of Excellence approach, where teamwork and project management skills set the company apart. This approach also provides high end engineering, project management and site personnel to deliver successful projects throughout Australia.
+61 3 9248 2700 | agcoombs.com.au/projects
A.G. Coombs Service
A.G. Coombs Service is a specialist provider of air conditioning, mechanical services, building controls and bundled services maintenance. Delivering 24/7 building support, the company is a preferred supplier to the Facilities Management Industry and provides professionally managed, highly qualified technical staff to achieve improved reliability, lower costs and regulatory compliance in commercial, retail and industrial buildings.
+61 3 9676 4600 | agcoombs.com.au/service
Walker Fire Protection
Walker Fire Protection provides a range of fire protection and detection services, from high end project engineering advice and consultancy through to concept and detailed design, installation of all types of fire detection and suppression systems, and ongoing inspection, testing, maintenance and regulatory compliance support.
+61 3 9279 7100 | agcoombs.com.au/walkerfire
Butler Electrical
Butler Electrical provides comprehensive mechanical electrical, commercial electrical, industrial electrical, data & communication installation and switchboard fabrication supported by its engineering design services.
+61 3 9555 7400 | butlerelectrical.com.au
Integrated Technical Management
Integrated Technical Management is a high quality provider of technical facilities management specialising in technically complex and critical facilities such as data centres, major commercial complexes, museums and cultural facilities.
+61 3 9248 2700 | agcoombs.com.au/itm
Acknowledgement of Country
A.G. Coombs acknowledges the Traditional Owners of Country throughout Australia and recognises the continuing connection to land, waters and communities.
We pay our respects to Aboriginal and Torres Strait Islander cultures and to Elders past, present and emerging.
Rooted in Country and culture,this artwork reflects the sharedjourney between Murrungar andA.G.Coombs toward reconciliation.Our corporate colours are reimagined through land and spirit – green for the hills of southwestVictoria,orange for Mallee soils and black for our people.
Journey lines,family groups, and spiritual guides speak to unity,heritage and healing.
Emu tracks,river systems,and crosshatched forms evoke connection,care and Country.
Together,these elements embody the values we hold – to build,grow and nurture – and affirm our commitment to reconciliation through respect, storytelling and enduring partnership. Murrungar by Shama Colgan-Smith
