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Poly-B Replacement in Coquitlam, BC
Find trusted poly-B replacement guidance and community-specific information for Coquitlam area homeowners.
Coquitlam · Poly-B
Poly-B in Coquitlam homes
Polybutylene plumbing was commonly installed in Coquitlam homes built between 1978 and 1998. If your home was constructed during this period, there's a possibility it contains poly-B pipes. Many insurance companies in British Columbia now have specific policies regarding polybutylene plumbing, including potential surcharges or requirements for replacement. Learn more about poly-B →
More than a third of Coquitlam’s occupied dwellings, 20,275 of 55,950 or 36.2%, were built from 1981 to 2000 according to the 2021 Census. The 1990s were the peak with 10,935 dwellings, followed by a quieter decade and then a new wave of construction after 2010.
The city also gives its name to one of the region’s two treatment plants. Metro Vancouver’s Coquitlam Water Treatment Plant, north of the city, treats about 380 million litres a day with ozone and ultraviolet light, and chlorine is used across the system as a disinfectant (Metro Vancouver). The Insurance Bureau of Canada lists poly-B’s reactivity with chlorine among the reasons it fails (IBC), so a 1990s house here deserves a look at its supply lines. The Vancouver guide covers strata rules, permits and BC insurance.
When Coquitlam's homes were built
The share of homes built during the poly-B years is the best single predictor of how common it is in a city.
Occupied private dwellings by period of construction · Coquitlam · 2021 Census
Census periods overlapping 1978–1998 (1981–1990, 1991–2000)
City-wide
The census groups construction years into periods, so 1981–2000 is the closest match to the 1978–1998 poly-B window.
Coquitlam Communities with Poly-B Information
5 community guides.
Next steps
Identify
Use the photo guide and the interactive identifier to check if you have poly-B.
Identification guide
Estimate
Calculate replacement costs for your home size.
Cost calculatorGet help
Request a quote; the HAUSE desk connects Coquitlam homeowners with a local replacement contractor where available.
Request a quoteHAUSE desk · Request
Ready to Address Your Poly-B?
Get started with a cost estimate and, with your consent, an introduction to a local replacement contractor in Coquitlam.
- 01A person reads itThe HAUSE desk reviews the age of the home, what you found and how urgent it is.
- 02You get a replyBy email from info@hause.ca or by phone from 403-679-3100, with practical next steps.
- 03Matched where availableWith your consent, your request goes to a local replacement contractor so they can quote.
- 04You decideNo obligation. Use the guides and the cost calculator to compare what you are quoted.
Updated 2026-09-30