HOW HOMES WORK
Poly B: what it actually does to your sale
If your house went up in the Okanagan between roughly 1978 and the late 1990s, there’s a good chance it has polybutylene supply plumbing — grey or sometimes blue flexible pipe, usually stamped PB2110, running to your fixtures.
Two things are true at once and people tend to only hear one of them. Poly B is a real issue that costs real money. It is also not the deal-killer the internet says it is, and I’ve sold plenty of homes that had it.
Six years as a journeyman HVAC technician before real estate means I’ve been in a lot of mechanical rooms. Here’s the practical version.
Poly B and insurance in BC: the real mechanism
The failure story is well known: the fittings and the pipe degrade, usually from chlorine in the water supply, and eventually you get a pinhole leak somewhere inconvenient.
But that’s not what actually moves your sale price. Insurance is. A number of insurers will decline a policy on a house with Poly B, or write it with an exclusion for water damage, or price it high enough to make a buyer reconsider. And a buyer who can’t get insurance can’t get a mortgage. That’s the mechanism — not a burst pipe, an underwriting desk.
So when a buyer’s agent asks about Poly B, they’re usually asking on behalf of a lender they haven’t met yet.
Insurer positions vary and they change. Get a quote on the actual house before you decide anything on the strength of a general rule, mine included.
The partial replacement nobody mentions
Here’s a pattern I’ve run into more than once, and it catches sellers off guard.
A house gets repiped, the owner has the invoice, everyone’s satisfied — and then the buyer’s insurer asks whether all of it was replaced. On one file, the interior had been fully redone in new plumbing, but the section running out to the street had been left, because at the time the work was done insurance didn’t require it. Entirely reasonable decision when it was made. Still a conversation at the negotiating table years later.
If you’ve had it done, find out exactly what was done. “We replaced the Poly B” and “we replaced all of it” are different sentences, and only one of them survives an insurer’s question.
Should you replace it before you list?
My honest answer: usually not, unless the number works.
A full repipe on a typical Okanagan house is meaningful money and meaningful disruption — walls open, drywall repair, paint. What you get back is one fewer objection, not a dollar-for-dollar bump in what someone will pay.
What I’d do instead, in order:
- Find out what you’ve actually got. Look at the pipe. Look for old invoices. Know whether it’s original, partly replaced, or fully replaced.
- Get a written quote. A buyer with a real number in front of them negotiates against that number. A buyer with no number negotiates against their imagination, and their imagination is always more expensive than the quote.
- Disclose it plainly and early. It goes on the Property Disclosure Statement anyway. Surfacing it in week one is a footnote; surfacing it at subject removal is a renegotiation.
- Then decide. Sometimes the quote is small enough that doing it is obviously right. Sometimes a credit at closing is cleaner than three weeks of trades in your house while you’re trying to show it.
The thing I’d push back on is the reflex to repipe just to avoid an awkward conversation. That’s expensive silence.
It doesn’t stop a sale
A West Kelowna house from the early eighties I listed carried this exact question, and it sold without the question ever becoming a problem.
Poly B was known, disclosed and priced in from the first day it was on the market. Buyers looking at a house of that age are not expecting perfection. They are checking whether anything is being hidden from them, and a seller who raises it first has answered that before it gets asked.
That’s the whole strategy, honestly. Know what you have, price it in, say it out loud first.
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