The realtor’s guide to Poly B
Poly B kills deals two ways: the surprise nobody screened for, and the panic nobody priced. Both are preventable, and the agents who handle this material well close these homes routinely.
The 30-second answer
Screen every era listing before it hits the market, disclose what’s known accurately, and put a real number on the table instead of letting imaginations run: across 1,500+ completed replacements, a full repipe with restoration typically runs $9,500 to $13,000 in Calgary and $14,000 to $19,500 in Metro Vancouver.1 The deal-killer isn’t the pipe; it’s discovering it at the inspection with no plan.
Two-minute screening, before listing or showing
Run the address through the checker or find the neighbourhood in the profiles; homes built or replumbed 1978 to 1998 are in the window. On the walkthrough, look at the water heater connections, under the kitchen sink, and any unfinished ceiling: grey flexible pipe stamped PB2110 settles it. The identification guide is shareable with sellers, and knowing before the buyer’s inspector does is the whole game on the listing side.
Disclosure: what the rules actually require
The provinces differ and the details matter, so this site keeps a full disclosure chapter verified against the court records. The agent-level summary: in BC, the property disclosure statement is incorporated into the contract and the case law punishes games played with it. In Alberta, the material-latent-defect framework governs, and the rules are explicit that a seller cannot instruct their licensee to conceal a known defect. Whether visible Poly B is even “latent” is nuanced, but the practice answer is simple: known Poly B gets disclosed accurately, and accurate disclosure plus a plan beats concealment plus a lawsuit every time.
Listing a Poly B home
- 1Get the facts before the market does. Confirm what’s actually in the walls, gather any repipe or repair records, and if the system is original, get a replacement quote in hand. A listing that says “Poly B present, quote attached, priced accordingly” removes the negotiating lever entirely.
- 2If the seller repipes first, keep the paperwork. The completion certificate, permit and inspection record transform the home from “Poly B house” to “repiped house,” a different product. The process page shows sellers what they’re signing up for, typically two to nine days.
- 3Price with data, not dread. The cost guide’s completed-job ranges give both sides the same number, which is what makes negotiations short.
Buyer’s side: the timing that saves closings
The failure mode is always the same: Poly B surfaces at inspection, the buyer’s insurer gets asked on day one of a five-day condition period, and the answer arrives late, ugly, or both. The fix is sequencing. The buyer’s guide walks your clients through it: inspection with explicit material identification, a written insurability answer before subjects come off, and a repipe quote during conditions, not after. Insurer positions genuinely vary and mostly aren’t published, which is why the coverage tracker exists; brokers shop this market weekly and your client’s broker should be in the deal by the second day of conditions.
Strata and condo files
In-unit pipe versus building risers is the first question, the building’s engineering and repipe history is the second, and BC’s depreciation-report deadlines mean the documents increasingly exist to be read. A buyer who learns the building-wide Poly B story after possession learned it from the special levy.
Use this library with clients
Every page here is built to be sent: the ID guide for sellers who aren’t sure, the buyer’s guide for nervous purchasers, the FAQ for the questions that arrive at 9 p.m., and the city profiles for how common this actually is in your market. Sourced, dated, and free of scare copy, because a calm client transacts. And if you want the first answer living on your own website, the address checker is free to embed.
Sources for this page
- Poly B Plumbing Guys completed-job records, 1,547 replacements across Alberta and BC, August 2026
- BC and Alberta disclosure frameworks as sourced in the disclosure chapter
- Canadian insurer and broker guidance as sourced on the insurer coverage tracker
This page is practice guidance for licensees, not legal advice, and your board’s and regulator’s rules govern. The linked chapters carry the primary sources for every claim here.

Published by Poly B Plumbing Guys
This library is maintained by the team that replaces Poly B every day across Alberta and BC. Red Seal certified plumbers, full remove-replace-restore service including drywall and paint, a 25-year warranty, and the completion certificate insurers ask for.
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