4.9★ from 743 GTA homeowners

Chimney Leak Repair Cost in the GTA — Get Your Price Instantly

Leak tracing, flashing replacement and waterproofing with a dry guarantee. See real chimney leak repair prices in the GTA in under 60 seconds.

  • Real price range in under 60 seconds
  • Licensed, insured, WETT & TSSA certified
  • Written quote — no surprise add-ons
  • Callback within 60 minutes, 8am–8pm
Typical chimney leak repair prices in the GTA
Job typeTypical price
Cap and crown sealingStops the most common entry point$420 – $780
Flashing replacementStep and counter-flashing renewed$650 – $1,600
Full masonry waterproofingVapour-permeable sealer, 10-year rated$780 – $1,900

Ranges reflect the GTA labour and material costs. Your calculator result is tailored to your answers.

Chimney Leak Repair price assistant

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Licensed, insured, WETT & TSSA certified · 4.9★ from 743 GTA reviews

What the GTA homeowners say

Good work, tight scheduling

Had to move my appointment once, but the sweep itself was excellent and the crown sealing has held through the winter with no water staining.

Greg W. · 2025-10-21

Level 2 for a house sale

Recorded the whole flue on video for the buyer's agent. The chimney line item stopped being a negotiation point the same day.

Tom H. · 2026-04-03

Fast after a smoke back-up

Smoke came into the living room on a Sunday evening. They were here the next morning, found a nest, cleared it, and tested the draft before leaving.

Kevin O. · 2026-03-08

Wood stove cleaning done right

Careful, knowledgeable, and explained the creosote grading so I actually understood why it mattered. Booking was easy and they arrived inside the window.

Jonathan P. · 2026-01-27

Chimney Leak Repair pricing questions

Why is my chimney leaking?
In the GTA it is almost always the crown, the cap, or the flashing where the chimney meets the roof. We water-test to confirm before quoting a fix.
Can you fix it in winter?
Emergency sealing yes, permanent masonry work needs above-freezing temperatures. We will tell you honestly which one you are getting.
Is the repair guaranteed?
Completed waterproofing carries a written no-leak guarantee.

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Prefer to just talk to someone?

Call Diamond Home Services and we'll price your chimney leak repair over the phone.

(437) 475-2233

Chimney Leak Repair Cost in the GTA — Instant Price Calculator