What does flashing repair cost in St. Marys?

Chimney flashing in St. Marys is $480 to $1,200. Valley and wall flashing runs $620 to $1,900 depending on length.

Can't you just caulk it?

Caulk is a short-term patch. We replace the metal so the detail sheds water the way it was designed to.

Is flashing the usual leak source?

Yes — most roof leaks we trace in the GTA start at a flashing detail, not at the shingle field.

4.9★ from 743 GTA homeowners

Flashing Repair Cost in St. Marys — Get Your Price Instantly

Chimney, valley, skylight and wall flashing replaced properly. See real flashing repair prices in St.

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Typical flashing repair prices in St. Marys
Job type	Typical price
Chimney flashingStep + counter-flashing renewed	$480 – $1,200
Skylight flashingProper kit, not caulk	$520 – $1,400
Valley or wall flashingMetal replaced, shingles woven back	$620 – $1,900

Ranges reflect St. Marys labour and material costs. Your calculator result is tailored to your answers.

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

What St. Marys homeowners say

Reliable across three jobs
Used them for a sweep, a dryer vent, and a fireplace service. Same standard every time and the same technician twice, which I appreciated.

Helena B. · 2026-04-17

Bundled two services, saved the trip fee
Had the chimney and the dryer vent done on the same visit. Cheaper and half the disruption.

Farah N. · 2025-12-27

A real person answers the phone
No call centre, no chasing. Booked in two minutes and got a text when the truck was on the way.

Ryan K. · 2026-02-28

Documentation on everything
Photos, readings, and a written summary after every visit. Makes it easy to keep records for the house file.

Doug T. · 2026-01-11

Flashing Repair pricing questions

What does flashing repair cost in St. Marys?: Chimney flashing in St. Marys is $480 to $1,200. Valley and wall flashing runs $620 to $1,900 depending on length.
Can't you just caulk it?: Caulk is a short-term patch. We replace the metal so the detail sheds water the way it was designed to.
Is flashing the usual leak source?: Yes — most roof leaks we trace in the GTA start at a flashing detail, not at the shingle field.

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Gutter Cleaning in St. MarysHand-cleared gutters and downspouts with a flow test and photos.Gutter Repair in St. MarysResloping, resealing, hanger and downspout repairs that stop overflow.Eavestrough Installation in St. MarysSeamless 5" and 6" aluminum eavestrough rolled on site.Fascia & Soffit Repair in St. MarysRotted fascia board replacement, soffit venting and capping.

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(437) 475-2233

Flashing Repair Cost in St. Marys — Get Your Price Instantly

What St. Marys homeowners say

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