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Poly B Replacement in Coquitlam, BC

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.

Grey Poly B supply pipe stamped PB2110
Poly B Replacement — Coquitlam

Replacing Poly B in Coquitlam Homes

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.

  • ✓Free assessment in Coquitlam — we confirm the material and the condition before you commit to anything.
  • ✓Fixed written price — one number with the scope spelled out, not an estimate that moves.
  • ✓Permit and inspection — pulled and booked with the City of Coquitlam.
  • ✓PEX-A as standard — chlorine resistant, expansion fittings, fewer wall openings than copper.
  • ✓Documentation package — permit, inspection, photos and warranty — what an insurer and a buyer will ask for.
Book a Free Poly B Assessment (604) 636-3939

Where we work in Coquitlam

Maillardville · Austin Heights · Westwood Plateau · Burke Mountain · Como Lake — and everywhere else in Coquitlam.

Permits

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.

Full details

The full rundown: why Poly B fails, what replacement involves, how long it takes and what it costs.

How Poly B replacement works →
About Coquitlam Homes

Why Coquitlam Has So Much of It

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.

Other plumbing we do in Coquitlam

Nearby

More in Coquitlam

Everything We Do in Coquitlam

FAQs

Poly B Replacement in Coquitlam — Questions

Usually, yes. BC insurers treat Poly B as a known water-damage risk and price it accordingly — higher premiums, raised water-damage deductibles, sometimes an exclusion or a refused renewal. Once the Poly B is out and documented, that reason goes away. More on Poly B and insurance in BC.
It is no longer made or installed and it came out of the plumbing codes, but there is no law requiring you to remove what is already in your Coquitlam home. The pressure comes from insurers and from buyers, not from the City of Coquitlam.
It routinely comes up in the inspection report and gets negotiated against the price — often for more than the replacement would have cost. Replacing beforehand removes the bargaining chip and widens your buyer pool to people whose insurer will not write a Poly B home.
"It has not leaked yet" is not a measure of condition. Poly B degrades from the inside and the cracking that causes a failure is invisible from outside the pipe. Most people we work with are replacing because of an insurance renewal or a pending sale, not because of an existing leak.
Look at the supply lines where they enter your hot water tank, then under the sinks and in the crawlspace. Poly B is grey or blue-grey flexible plastic, stamped PB2110 every few feet. If it is grey and it bends by hand, that is almost certainly it. Here is the full identification guide.

Find Out What You Actually Have — Free

We will confirm whether it is Poly B, what condition it is in, and what replacement would cost in Coquitlam. No charge.

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