7 Signs You Need a Drywall Contractor for Repairs or Renovations Cracks on your walls, water stains on your ceiling, or even a small hole from a recent mishap, these issues may seem minor at first. However, over time, they can grow into bigger problems that affect your home’s appearance and durability. If you’ve been putting off repairs because you’re unsure how to handle them, it might be time to call a professional.