Stop Flat Roof Leaks — Fast,
Clean, Guaranteed
Same-day leak stop, photo report for every job, & a 10-year workmanship warranty.
Our Leak-Stop Process
Inspection & Moisture Check
Locate source, test surrounding areas, document condition.
Prep & Dry
Clean, dry, prime so repairs bond properly.
Repair & Seal
Compatible patches, seal seams, reinforce penetrations.
Verify & Report
Photo report and recommendations.
Verify our WSIB clearance (official)
View the verification graphic or open the official tool.
Stop the leak. Protect your building.
Common flat-roof problems we fix the same day (weather permitting):
Active leaks
Emergency tarp & temporary patch; permanent membrane repair after dry-down.
Open seams
Heat-weld or torch with compatible membrane kits; lab-matched primers.
Blisters & splits
Cut, dry, reinforce, & patch; restore waterproofing continuity.
Ponding water
Scuppers, drains, & crickets to move water off deck.
Flashing failures
Parapet, curb, & wall tie-ins rebuilt to spec.
Penetrations
HVAC/vent boots, pitch pockets, & pipe seals re-done.
Deck damage
Replace rotten sheathing; re-lay underlayment & membrane.
Skylights & hatches
Gasket & curb fixes, reseals, & replacements.
Why Toronto chooses Quality Roofing
Flat-roof specialists
Experienced with TPO, PVC, EPDM, SBS, & BUR across commercial & residential.
Rapid response
Crews on call 24/7 for weather events & urgent leaks.
Transparent pricing
Clear scope & photos before/after — no surprises.
How our flat-roof repair works
Simple, fast, & transparent:
1) Diagnose & contain
Trace the leak path, take moisture readings, apply temporary patch if needed.
2) Plan & quote
Clear scope, materials, & firm price for the repair.
3) Permanent repair
Heat-welded patches or torch-on caps matched to your system.
Materials & systems we repair
We work on most flat-roof membranes installed in the GTA:
TPO & PVC
Hot-air welds, compatible patches, edge metal tie-ins, curb flashings.
EPDM
Prime, reinforce, & adhere with EPDM-approved tapes/sealants.
SBS / BUR
Torch-applied cap sheets, blisters opened/dried, multi-ply repairs.
Who we help
Flat roof repair in Toronto for:
Plazas & retail
Keep tenants dry & open. Off-hours work to minimize disruption.
Warehouses & logistics
Large roof areas, multiple penetrations, safety first; WSIB covered.
Residential flats
Row houses, additions, laneway homes — neat, code-compliant.
Safety & Compliance you can trust
WSIB covered
Active WSIB account & clearance certificate; crews trained for working at heights.
Fully insured
Commercial liability coverage to protect your property & tenants.
Site-safe practice
Fall protection, perimeter control, & a clean site before we leave.
Flat roof repair pricing — what affects the quote
We give firm written quotes after inspection. Price depends on scope & conditions on site — not guesswork.
1) Roof system & age
TPO/PVC/EPDM/SBS/BUR each repair differently. Older membranes can need larger reinforced patches.
2) Wet area size
Moisture mapping determines how large the saturated area is & how much must be cut out, dried, & rebuilt.
3) Access & safety
Height, parapets, anchors, & perimeter protection affect setup time & crew size.
4) Penetrations & edges
Curbs, drains, scuppers, & edge metal increase detail work & time to complete.
5) Weather & urgency
Emergency leak-stop during a storm is different from a dry‑day scheduled repair.
6) Finish & warranty
Scope includes materials, reinforcement, & workmanship warranty terms on the quote.
What we check during a leak inspection
Seams & laps
Probe welds/tapes for openings & fishmouths.
Penetrations
HVAC, vents, pitch pockets, & pipe seals.
Flashings
Parapet & wall tie‑ins, term bars, & counter‑flash.
Drains & scuppers
Flow, strainers, & sump condition.
Deck & insulation
Soft spots, trapped moisture, & fastener back‑out.
Parapet caps
Metal joints, mitres, & sealant continuity.
Skylights & hatches
Gaskets, curbs, & glazing integrity.
UV & traffic wear
Faded membranes, spalls, & footpath damage.
Emergency leak-stop — our timeline
Dispatch
We confirm address, access, and safety notes; crew leaves with tarp/temporary materials.
Contain
Stop active ingress with temporary patch or containment; protect interiors.
Diagnose
Trace leak path, test seams and penetrations, and map wet areas.
Quote
You get a clear written scope with photos for permanent repair once dry.
Repair
Permanent membrane repair matched to your system with documented before/after.
Preventive maintenance plan
Stay ahead of leaks with simple scheduled care. We offer spring & fall visits or custom intervals.
Seasonal inspection
Visual walk, probing of high‑risk details, & moisture checks.
Drain cleaning
Strainers cleared, sumps cleaned, & flow confirmed.
Minor fixes
Seal pinholes & edge nicks before they become leaks.
Commercial & residential flat roofs
Commercial & industrial
Large areas, multiple penetrations, traffic paths, & off‑hours work to keep operations running.
Multi‑unit & retail
Tenant coordination, leak tracing across units, photo reporting for landlords.
Residential flats
Row houses, additions, & laneway homes — neat, code‑compliant work with clean sites.
Serving Toronto & the GTA — full list
Toronto, North York, Etobicoke, Scarborough, York, East York, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Thornhill, Oakville, Bolton, Woodbridge, Kleinburg, Aurora, Newmarket, Pickering, Ajax, Whitby.
More questions, answered
Can you work in winter?
Yes. Leak‑stop & many repairs are possible in cold weather with proper primers & dry‑downs.
Do you replace roofs too?
When a system is past economical repair we’ll say so & quote a replacement — no pressure tactics.
Do you provide photos?
Yes — before/after & a brief summary of the work performed on request.
What about warranties?
Repairs include workmanship warranty terms on the written quote. Materials follow manufacturer guidance.
How soon can you attend?
Emergency dispatch is immediate. For non‑urgent issues we schedule the next available same‑day or next‑day slot.
Are you insured and WSIB covered?
Yes — fully insured & WSIB covered. You can verify our WSIB clearance above.
Recent flat-roof repairs in the GTA
A few examples from plazas, warehouses, & homes. Full gallery on request.
Get a Free Estimate
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