Is Poly-B Still Installed in New Construction Homes?
No — Poly-B hasn't been an approved plumbing material in Canada since 2005, and it stopped being manufactured even earlier. If your Calgary home was built recently, it isn't the source of a Poly-B question. If it was built between roughly 1978 and 1995, that's a different story — here's how the two connect.
The Short Answer
No. Poly-B has not been an approved plumbing material for new construction in Canada since 2005, when the national plumbing code formally dropped it. Manufacturing of the resin itself stopped even earlier, around 1998, following major class-action settlements over widespread pipe and fitting failures. If you're buying or building a new home in Calgary today, it will be plumbed with PEX or copper, not Poly-B.
The material only matters today because of homes built while it was still common — and that's a specific, identifiable window of time.
Why Poly-B Was Phased Out
Poly-B was popular through the late 1970s, 80s, and into the mid-90s because it was cheaper and faster to install than copper. It didn't stay popular for long once problems showed up.
Widespread failures
Through the 1990s, Poly-B systems across North America showed a pattern of fitting and pipe failures tied to chlorine exposure breaking down the plastic over time.
Class-action lawsuits
Major manufacturers faced class-action settlements in the US and Canada, and resin production wound down around 1998 as a result. Read the fuller history and lawsuit background.
Code removal
By the time the plumbing code formally dropped Poly-B as an approved material in 2005, PEX had already become the standard replacement — see how the two compare directly.
What This Means If Your Home Still Has Poly-B
Homes with Poly-B installed before it was phased out are grandfathered under current code — there's no law requiring you to rip it out. But grandfathering only covers what's legal, not what's low-risk. Insurers increasingly price or decline coverage based on the material, and buyers ask about it at resale, which is a separate set of pressures from the code itself. Our home insurance and Poly-B guide covers that side in detail.
How to Tell How Old Your Home's Pipes Are
Poly-B pipe does carry a manufacturing code as part of the industry standard it was made under, but there's no publicly documented way for a homeowner to decode an actual install date from it — it isn't something you can look up like a VIN number. The practical approach is simpler: use your home's construction or permit date as the starting point, since Poly-B was mainly installed in Calgary homes built roughly between 1978 and 1995. If your home falls in that window, the next step is confirming the pipe itself — look for the printed PB2110 stamp described in our warning signs and identification guide, which is the marking a homeowner can actually use to confirm what they're looking at.
Not Sure If Your Home Falls in That Window? We'll Check, No Charge.
If your Calgary home was built in the 1978–1995 range, or you're just not sure, one of our plumbers can confirm what's actually running behind your walls and what your options are — no pressure, no obligation.
Book a Free On-Site Check