Coquitlam, BC repair guide

Roof Repair in Coquitlam: Burke Mountain Rain, Maillardville Moss and New Roofs That Leak Early

Coquitlam runs uphill, and so does its rainfall: Burke Mountain and Westwood Plateau catch more rain than the flats along the Fraser, and a roof up there works harder than the same roof in Richmond. The housing runs from 1910s Maillardville, the oldest French-Canadian community in the west, through 1960s and 70s Austin Heights and the 1990s Westwood Plateau to subdivisions on Burke Mountain still under construction. This guide covers what fails on each, how to trace a leak, why some new roofs leak in their first winters, and what BC requires of the roofer.

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By Michael, founder, fixmystuff.ca · Reviewed and updated 2026-09-11 · About 7–10 minutes

What the rain does, by neighbourhood

Maillardville and Austin Heights have older houses under mature trees, where moss grows on the north slopes, needles fill the gutters and cedar shakes on the remaining older roofs rot where debris sits. Westwood Plateau’s 1990s houses have large, complex roofs with long valleys and many skylights, and those are where the leaks start as the original flashing and sealants age. Burke Mountain’s new houses have the steepest lots and the heaviest rain, and their problems are installation problems: flashing at wall junctions, plumbing boots and skylight curbs done fast in a building boom.

Everywhere, gutters full of needles overflow behind the fascia and rot it, which shows up as a leak at the eaves. Clearing gutters every fall is the cheapest roof maintenance in Coquitlam.

What you seeLikely causeRepair or replace
Stain below a valley or skylightWorn valley, failed curb flashingRepair
Moss on north slopes, tabs liftingShade and moistureRemove and treat; replace if tabs are gone
New house, leak at a wall junctionStep flashing installed wrongWarranty claim, then repair
Cedar shakes splittingEnd of lifeReplace
Water at the eaves insideOverflowing gutters, rotten fasciaGutters and fascia first

New roofs and the Home Warranty

A house built by a licensed builder in BC comes with mandatory home warranty insurance: two years on labour and materials, five on the building envelope including the roof, and ten on structure. A leak in a Burke Mountain house in its first winters is a warranty claim first. Report it in writing to the builder and the warranty provider within the timelines, photograph the water and the damage, and do not let a roofer alter the roof before the warranty provider has seen it, because that can void the claim.

If the warranty period has passed, or the house was owner-built, it is a normal repair, and a roofer who knows the subdivision has probably fixed the same flashing detail on the street already.

  • Photos of the leak inside and the roof from the ground
  • Roof age, material and builder, if known
  • Home warranty documents and dates, for a newer house
  • Whether the home is a strata unit
  • WorkSafeBC clearance and liability certificate from the roofer

Stratas, permits and who may do the work

Many Coquitlam townhouse complexes are stratas, where the roof is common property under the Strata Property Act and the strata council arranges the repair; report the leak in writing to the property manager rather than hiring your own roofer. For a detached house, roofing is unlicensed in BC, so ask for a WorkSafeBC clearance letter and a certificate of liability insurance and verify both. Whether a re-roof needs a City of Coquitlam building permit depends on the scope; ask the roofer and confirm with the City for deck replacement, structural work or skylights.

Consumer Protection BC publishes guidance on contractor contracts and deposits; keep deposits small and tie payments to milestones.

Replacing for the hillside

For a replacement on the plateau or the mountain, ask about algae-resistant shingles, open metal valleys, ice-and-water membrane at eaves and valleys, and new rather than reused flashing at every skylight and wall. Metal roofing sheds rain and moss well and is common on Burke Mountain. Ventilation matters: a warm, poorly vented attic under a wet roof grows condensation, and a roofer should check soffit and ridge venting and that bathroom fans vent outside.

Get the workmanship warranty and the material warranty in writing, and hold back the final payment until the site is clean and you have the documents.

Questions to ask before booking

  1. Can you show me the failure point before quoting?
  2. Is this house still under home warranty, and have you dealt with warranty providers?
  3. Can I see your WorkSafeBC clearance letter and liability certificate?
  4. For a strata: has the strata engaged you, and does the quote go through the property manager?
  5. What are the workmanship and material warranties, and what is the payment schedule?

Frequently asked questions

My new Coquitlam house leaks. Is that a warranty claim?

Probably. Houses built by licensed builders in BC carry home warranty insurance with five years on the building envelope, including the roof. Report it in writing to the builder and the warranty provider before anyone alters the roof.

Who fixes a leaking roof in a Coquitlam townhouse?

Usually the strata corporation, because the roof is common property. Report the leak in writing to the strata or property manager and let them arrange the roofer.

Should I remove moss from my roof?

Yes, before it lifts shingle tabs. Have it removed and treated professionally; pressure washing strips granules and shortens the roof’s life.

How do I check a roofer’s insurance in BC?

Ask for a WorkSafeBC clearance letter and a certificate of liability insurance naming the company, and verify both with the issuer.

Nearby communities

Tri-Cities roofers cover Coquitlam, Port Coquitlam and Port Moody from the same base, and BC’s rules on WorkSafeBC, stratas and home warranty are province-wide. Permits are municipal.

Browsing more broadly? Start from the Coquitlam repair hub for every local guide in one place.

Sources and further reading

  1. BC Housing: home warranty insuranceWhat the 2-5-10 warranty covers and how to claim.
  2. WorkSafeBC: clearance lettersConfirming a contractor’s coverage before work starts.
  3. City of Coquitlam: building permitsWhen roofing work needs a permit.
  4. Consumer Protection BCContracts, deposits and cancellation rights.

Prices, programs, and acceptance rules can change. Check each source and obtain a written local quote before deciding.

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