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What the house is hiding

Kitec & poly-B plumbing

Two different plumbing systems, from two different eras, that share one characteristic: their presence changes a transaction. Both were installed legally and in good faith, and both have a history of failure that insurers and buyers now price in.

Which homes

Poly-B (polybutylene, grey flexible pipe) roughly 1978 to the mid-1990s. Kitec (orange and blue composite pipe, brass fittings) roughly 1995 to 2007.

Where it turns up

What to look for, and where.

Knowing the usual locations is enough to decide whether an assessment is worth commissioning. It is not enough to conclude that a house is clear.

Common locations

  • Poly-B: grey plastic supply pipe, often with grey or copper crimp rings, visible at the water heater and in unfinished ceilings
  • Kitec: bright orange (hot) and blue (cold) pipe, brass fittings, frequently marked with brand names including Kitec, PlumbBetter, IPEX AQUA or WarmRite
  • Both are most visible at the mechanical room, under sinks and in unfinished basement ceilings
  • Kitec also appears in in-floor heating systems

How it is identified

Visual identification by a licensed plumber. No laboratory is needed — it is a matter of looking in the right places and reading the pipe markings.

Remediation

What dealing with it involves.

Required credential: Licensed plumber holding a Certificate of Qualification.

  1. 01

    Full replacement with PEX or copper is the definitive answer, and the only one that resolves insurance and disclosure questions

  2. 02

    Partial replacement of visible sections is common but leaves the concealed runs in place

  3. 03

    Fittings are frequently the failure point in Kitec systems, so a fitting-only approach is not a repair

Buying or selling

What it means in a transaction.

This is the single most reliable renegotiation trigger in Ontario resale. Some insurers decline or surcharge policies where either system is present, and buyers' lenders occasionally follow. Identify it before listing, get a replacement quote, and decide deliberately whether to replace or to price it in — either is defensible, being surprised is not.

General information, not an assessment of your property.

Confirming the presence of kitec & poly-b plumbing in a specific home requires qualified professionals and, where applicable, accredited laboratory analysis. Guidelines and regulations change. Nothing on this page replaces a professional assessment, and nothing here is legal advice about disclosure obligations when selling—raise those with your lawyer.

A straightforward first conversation

Concerned about kitec & poly-b plumbing in a property?

Tell me where you are in the process. We’ll discuss the property, the market, and the questions that matter most to you.

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