Roof Repair
Commercial Flat
Roof Repair
Commercial flat roof repairs across London and Southwestern Ontario, from isolated leaks to failed seams, flashing and drainage details.
Commercial roof leak repair with less disruption
A leaking commercial roof puts stock, equipment and tenants at risk, and small membrane problems grow fast under ponding water and freeze-thaw. We diagnose the actual source of the leak before we quote, so you’re paying to fix the problem, not chasing stains across the ceiling tiles.
We repair commercial flat roofs across EPDM, TPO and modified bitumen systems. Our crews work clean, coordinate around your operations, and we guarantee every repair we complete. Inspections and quotes are free, in London and across Southwestern Ontario.
What’s included
Membrane repairs
Splits, punctures and failed seams on EPDM, TPO and modified bitumen roofs, patched and sealed to spec.
Flashing & detail work
Repairs around curbs, parapets, drains and penetrations, where many commercial roof leaks begin.
Leak tracing & diagnosis
A thorough inspection that finds the true source before any work is quoted, so repairs hold.
Repair-or-replace advice
The condition of the membrane and insulation determines whether repair or replacement makes better financial sense.
Free quote
Leak at your building?
Book a free commercial roof inspection and get a straight answer.
Why Legacy
Ownership you can see
- Flat-roof specialists
Commercial flat and low-slope systems are our core work, not a sideline. - Minimal disruption
We coordinate roof access and timing with your staff, tenants or facility manager. - Repairs guaranteed
We guarantee any repair we complete, and work hard to reply to leak calls the same day.
How it works
How we handle your repair
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1
Diagnose
We inspect the roof and trace the leak to its real source.
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2
Quote
A free estimate identifying the failed area and the proposed repair.
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3
Repair
Membrane and flashing work done to spec, site left clean.
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4
Stand behind it
Workmanship warranty in writing, and we’re here if anything changes.
Commercial roof repair FAQs
Will repairs disrupt my business?
Most repairs happen entirely on the roof. We coordinate access and timing with you and keep the site clean throughout.
Which roof systems do you repair?
We repair EPDM, TPO and modified bitumen, along with the metal flashing and trim around them.
Is the inspection really free?
Yes. We inspect, diagnose the source of the problem, and give you a written quote at no cost.
What if the roof is beyond repair?
If moisture or membrane failure is too widespread for a reliable repair, we’ll show you what we found and price the replacement option.
Get started
Get a free
quote today
Find out why Legacy Flat Roofing & Sheet Metal are the best in the business.