
Roof Flashing Repair in Cathedraltown, Markham
Professional roof flashing repair in Cathedraltown, Markham — 24 hour response, licensed & insured.
Roof flashing seals the joint between shingles and any wall, chimney, skylight, or vent that penetrates the roof in Cathedraltown, Markham. It's also the number-one source of roof leaks — over 70% of leak calls trace back to failed flashing, not shingles.
Why roof flashing repair matters in Cathedraltown, Markham
The #1 Leak Source
When a homeowner says 'my roof leaks', 7 times out of 10 the shingles are fine and the flashing has failed.
Step Flashing Matters
Continuous flashing bent along a wall fails in years. Step flashing woven between courses of shingles lasts decades.
Skylight & Vent Boots
Rubber vent boots crack in Canadian sun. Replacing them is a 30-minute job that prevents drywall damage.
Our roof flashing repair process
- 1
On-Site Assessment
We walk the exterior in Cathedraltown, Markham, document current condition with photos, and identify every failure point before quoting.
- 2
Written Quote
You get an itemized estimate — parts, labour, timeline — before any work starts. No surprises.
- 3
Professional Repair
Our crews use manufacturer-approved materials and industry-standard techniques. Every job is fully insured.
- 4
Cleanup & Verify
We haul away debris, sweep the work area, and walk the finished job with you before signing off.
- 5
Warranty
Every job in Cathedraltown, Markham carries a written labour warranty and full manufacturer coverage on materials.
Common findings in Cathedraltown, Markham
- Failed caulk on continuous chimney flashing
- Missing step flashing on old wall junctions
- Cracked plumbing vent boots
- Corroded skylight flashing kits
What you get
Real Craftsmanship
Experienced tradespeople in Cathedraltown, Markham — not day labour — on every job.
Fair, Upfront Pricing
Written quotes before we start. No day-of surprises.
Peace Of Mind
Licensed, insured, and warrantied. If something isn't right, we come back.
FAQ
Small caulk failures are repair; failed step or counter-flashing needs full re-flashing.
Aluminum, copper, or galvanized steel depending on the location and existing metal.
10-year workmanship warranty.
Book your roof flashing repair today
24 HOUR RESPONSE GUARANTEED — call now to lock in a slot in Cathedraltown, Markham.
Call (437) 475-2233More Markham services
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