Commercial Roof Repair & Assessment by Bay Roofing and Exteriors Ltd.
When a commercial roof problem shows up, it rarely starts as “big.” Most leaks, moisture issues, and membrane failures begin as small weaknesses—then grow into costly damage if left unchecked. That’s why Bay Roofing and Exteriors Ltd. offers professional commercial roof repair and roof assessments designed to catch issues early, protect your building, and reduce downtime.
Whether you’re dealing with an active leak, storm damage, recurring water entry, or simply want a clear understanding of your roof’s condition, our team provides honest inspections, practical recommendations, and quality repairs that last.
Book a commercial roof assessment today and get clear answers fast.
Commercial roofing repairs aren’t just about stopping the leak you can see—they’re about identifying the source and preventing it from returning. We approach each repair with the goal of restoring performance and extending the overall life of your roof system.
Our repair services are ideal for:
Flat and low-slope commercial roofs
Warehouses and industrial buildings
Retail plazas and office buildings
Multi-unit and mixed-use properties
Property managers, facility teams, and business owners
If your roof is still structurally sound, targeted repairs can be a smart alternative to a full replacement.
Roof Repairs That Protect Your Building and Budget
What’s Included in a Commercial Roof Assessment?
A roof assessment helps you understand what’s happening above your building—and what needs attention right now. Bay Roofing and Exteriors Ltd. performs detailed commercial roof evaluations that can support maintenance planning, budgeting, and risk reduction.
During an assessment, we may look at:
- Signs of leaks, moisture intrusion, or saturation
- Roofing membrane condition (wear, splits, punctures, lifting)
- Seams, penetrations, vents, and flashing points
- Drainage performance and ponding water concerns
- Edge details and perimeter integrity
- Previous repair areas and recurring problem zones
- Roof traffic damage and aging-related wear
You’ll receive clear feedback and recommendations so you can decide what’s best—repair, maintenance, or next-step planning.
Common Commercial Roof Issues We Repair
Commercial roofs face constant exposure, rooftop equipment traffic, seasonal temperature swings, and drainage challenges. Some of the most common issues we repair include:
Leak Detection and Repairs
We track down water entry points and repair the source—not just the symptoms.
Seam Separation and Membrane Damage
We repair splits, punctures, blisters, and seam issues that compromise waterproofing.
Flashing and Penetration Repairs
Many leaks begin around vents, drains, skylights, HVAC curbs, and roof edges. We restore proper sealing and protection in these high-risk areas.
Drainage and Ponding Water Problems
Standing water shortens roof life. We assess drainage flow and help address problem areas that keep water trapped on the roof surface.
Storm and Wind Damage Repairs
After severe weather, we inspect for loose materials, membrane lifting, impact damage, and hidden issues that can worsen over time.
Signs You Need a Commercial Roof Repair or Inspection
If you’re noticing any of the following, it’s time to schedule an assessment:
- Water stains on ceilings or interior walls
- Drips during rain or snow melt
- Musty odours or signs of trapped moisture
- Cracks, bubbling, or lifting in roof materials
- Standing water that doesn’t drain properly
- Increased heating/cooling costs
- Repeat repairs in the same location
Even if the leak “stops,” water damage can continue underneath—so it’s best to catch it early.

