Our kitemarks & accreditation

BS 6375 - 1 Performance of windows and doors

Weather tightness and guidance on selection and specification (Part of BS 7412). It specifies the exposure categories related to test pressure levels for air permeability, water tightness and wind resistance for external windows and door sets.

BS 7412 windows & door sets made from PVC-U extruded profiles

Specifies the requirements for the design, fabrication and performance of windows and doors.

BS EN 1279 - 2 & 3 Insulating glass units

Our double glazed sealed units have been successfully manufactured and tested for moisture penetration and gas retention.

PAS 24 Enhanced security performance of windows for domestic applications

Specification for windows and doors manufactured to provide enhanced security against unauthorised forced entry.

BFRC energy rating - ‘A’

All Lorimer windows and doors are manufactured to achieve a U-Value of 1.4W/m2K, which is an ‘A’ energy rating.

Secured by Design

A police initiative that improves the security of buildings through design and seeks to achieve sustainable reductions in crime.

ISO 9001:2008 Quality management systems

Systems to enhance customer satisfaction through the ability to consistently provide a product that meets customer and statutory/regulatory requirements, including process for continual improvement.

BBA - Quantal Conservatory Roof Systems

BBA - Tremco Illbruck Security Glazing Tape