Diamond Home Services logo
Diamond Home ServicesServing Toronto & the GTA
24 HOUR RESPONSE GUARANTEED

Chimney Flashing Repair in King, King City

Professional chimney flashing repair in King, King City — 24 hour response, licensed & insured.

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

Where your chimney meets the roof in King, King City is the single most leak-prone spot on your entire home. Proper chimney flashing has two layers — step flashing woven into the shingles and counter-flashing tucked into the brick mortar joints. When either fails, water tracks straight into the wall.

Why chimney flashing repair matters in King, King City

Two-Layer System

Real chimney flashing is a two-part system. Anyone offering to 'just caulk it' is selling you a 12-month fix.

Mortar Cut Matters

Counter-flashing must be cut into the mortar joints — not surface-mounted. Surface-mount flashing on a chimney lasts one winter.

Ice And Water Shield

A proper chimney rework includes ice-and-water membrane under the flashing for a redundant seal.

Our chimney flashing repair process

  1. 1

    On-Site Assessment

    We walk the exterior in King, King City, 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 King, King City carries a written labour warranty and full manufacturer coverage on materials.

Common findings in King, King City

  • Surface-mounted counter-flashing pulling away from brick
  • Rusted galvanized flashing from years of moisture
  • Missing kick-out flashing at the roof-wall junction
  • Caulk-only 'repairs' from prior contractors

What you get

Real Craftsmanship

Experienced tradespeople in King, King City — 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 Flashing Repair reviews in King, King City

4.9 average from 743 verified customer reviews
Great with an old masonry chimney
1920s brick, plenty of quirks. The technician clearly knew older builds and pointed out mortar joints to watch rather than pushing a rebuild.
Owen C. - Milton - 2025-11-08
Second flue done same visit
Old house with a furnace flue as well. They handled both in one visit and discounted the second one rather than charging full price twice.
Hannah J. - Pickering - 2026-03-29
Post-fire inspection
Small flue fire in January. They inspected, documented the damage, and coordinated the report with my insurer without me chasing anyone.
Daniel K. - North York - 2026-05-02
Explained the pricing upfront
Quoted over the phone, confirmed on site before starting, and the final invoice matched exactly. Refreshing in this trade.
Simone R. - Scarborough - 2025-09-27

FAQ

Why did my flashing fail?

Almost always because it was surface-mounted and caulked instead of cut into the mortar.

Do you cut into the brick?

Yes — that's the only way to do this repair properly. It's called a reglet cut.

Timeline?

Most chimney re-flashing jobs are a same-day, one-crew job.

Book your chimney flashing repair today

24 HOUR RESPONSE GUARANTEED — call now to lock in a slot in King, King City.

Call (437) 475-2233

More King City services

Related pages

Chimney Flashing Repair in other King City neighborhoods