If your Coquitlam home was built between 1978 and 1995, the grey pipe behind the drywall is very likely Poly B. We replace it in PEX-A and hand you the paperwork your insurer asks for.
Poly B is the grey plastic supply pipe stamped PB2110 that went into Canadian homes from 1978 until roughly 1995. It was designed for about 25 years of service, which means every system still in the ground in Coquitlam is past it.
Westwood Plateau is about as concentrated a pocket of Poly B as exists in Metro Vancouver — it was built out almost entirely inside the window.
It fails from the inside out — chlorine in the municipal supply makes the pipe wall brittle, and the original grey acetal fittings are the weakest point in the whole system. Nothing about that is visible until water appears somewhere it should not.
We replace the lot in PEX-A, plan the routes first so we open as few walls as possible, and finish with the permit, the inspection record and photographs.
Maillardville · Austin Heights · Westwood Plateau · Burke Mountain · Como Lake — and everywhere else in Coquitlam.
Permitted work in Coquitlam goes through the City of Coquitlam. We pull it and book the inspection as part of the job — you do not deal with the city.
The full rundown: why Poly B fails, what replacement involves, how long it takes and what it costs.
How Poly B replacement works →Westwood Plateau and much of central Coquitlam were built out through the late 1980s and 90s, which makes this prime Poly B territory. Maillardville and parts of Austin Heights are older and more mixed.
The higher parts of Coquitlam get colder than the valley floor, and hillside homes here often have long crawlspace runs.
We will confirm whether it is Poly B, what condition it is in, and what replacement would cost in Coquitlam. No charge.