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Chimney Leak Repair in Oakville

Professional chimney leak repair in Oakville — 24 hour response, licensed & insured.

Call (437) 475-2233
24 hour response
Licensed & insured
OEM parts on the truck

A stain on the ceiling near your chimney in Oakville could be flashing, crown, cap, spalled brick, or a failed liner. Our chimney leak diagnosis service traces the actual water path — top-down — and fixes the source, not the symptom.

Why chimney leak repair matters in Oakville

Diagnosis First

Anyone who quotes a chimney leak repair without going up on the roof is guessing. We inspect before quoting.

Water Path Tracing

Water can enter at the cap and appear on a ceiling six feet away. Proper diagnosis follows the actual path.

Multi-Source Common

Most chimney leaks are two problems at once — a bad crown AND failed flashing. We fix all of them.

Our chimney leak repair process

  1. 1

    On-Site Assessment

    We walk the exterior in Oakville, document current condition with photos, and identify every failure point before quoting.

  2. 2

    Written Quote

    You get an itemized estimate — parts, labour, timeline — before any work starts. No surprises.

  3. 3

    Professional Repair

    Our crews use manufacturer-approved materials and industry-standard techniques. Every job is fully insured.

  4. 4

    Cleanup & Verify

    We haul away debris, sweep the work area, and walk the finished job with you before signing off.

  5. 5

    Warranty

    Every job in Oakville carries a written labour warranty and full manufacturer coverage on materials.

Common findings in Oakville

  • Failed crown letting water into the masonry
  • Corroded or missing flashing at the shingle line
  • Missing cap letting rain fall down the flue
  • Spalled brick allowing water absorption

What you get

Real Craftsmanship

Experienced tradespeople in Oakville — 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.

Chimney Leak Repair reviews in Oakville

4.9 average from 743 verified customer reviews
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. - Oakville - 2026-01-27
Thorough sweep before the season
Drop cloths went down before anything else. Room was spotless afterwards and they fixed a loose cap on the spot rather than booking a second visit.
Emily T. - Etobicoke - 2026-02-09
Raccoon eviction and cap fitted
Family of raccoons in the flue. They removed them humanely, cleaned everything, and fitted a stainless guard that has kept them out since.
Alicia D. - Ajax - 2026-02-25
Camera scan caught a cracked tile
Previous company swept and said everything was fine. Diamond ran a camera and showed me a cracked liner tile on screen. Glad I got the second opinion.
Marta S. - Mississauga - 2025-11-30

FAQ

How do you find the leak?

Rooftop inspection, water test on the crown and flashing, and interior attic check.

What if it's multiple issues?

We quote each, and you decide what to fix now vs later.

Warranty?

Any repair we complete carries a written 10-year workmanship warranty against re-leak from the same source.

Book your chimney leak repair today

24 HOUR RESPONSE GUARANTEED — call now to lock in a slot in Oakville.

Call (437) 475-2233

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