Chimney Flashing Repair in Richmond Hill.
Step and counter-flashing replacement — the fix for the most common chimney leak in the GTA. Richmond Hill homes see hard freeze-thaw cycles every winter — that's the #1 accelerator of chimney damage in the GTA. An annual sweep and inspection is the single cheapest insurance you can buy for your home.
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A certified expert calls or texts back in under 15 minutes. No spam. Fixed-price written quote.
Flashing Repair you can actually trust
Roofers caulk flashing; masons cut it in. We replace step flashing shingle by shingle and set new counter-flashing into a saw-cut reglet in the mortar joint, wedged and sealed with polyurethane — a detail that outlives the shingles above it.
Every Richmond Hill technician is WETT SITE-Basic certified at minimum, with two inspectors carrying full SITE-Comprehensive credentials.
What's included
Benefits
- ✓ Saw-cut reglet counter-flashing, not surface caulk
- ✓ New step flashing woven into each shingle course
- ✓ Aluminum, copper, or lead-coated options
- ✓ Warrantied against water entry for 5 years
Our process
- 1. Strip failed flashing and clean the masonry joint
- 2. Cut a reglet into the mortar joint at the correct height
- 3. Install step flashing and set counter-flashing into the cut
- 4. Wedge, seal, and hose-test the assembly
We serve every Richmond Hill neighbourhood
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Flashing Repair in Richmond Hill — common questions
How long does chimney flashing last?+
Properly cut-in aluminum flashing lasts 25–30 years; copper lasts 50+. Caulk-only 'repairs' fail in 2–4 Ontario winters.
Should the roofer or the chimney company do the flashing?+
Whoever cuts the reglet. If the counter-flashing is only surface-sealed to the brick, it will leak regardless of who installed it.
How much does flashing repair cost in Toronto?+
Full step and counter-flashing replacement on a standard chimney runs $395–$1,200 depending on chimney size, roof pitch, and access.
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- Fixed-price written quote
- No spam, no sales calls
- WETT & CSIA certified
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Flashing Repair — nearby cities