How to Read a Pre-Listing Inspection Report in Canada: Material Defects, Cosmetic Findings, and Disclosure Duties by Province

This is the main tool in the guide. Go through your report and match each significant finding to a row below. The "material or cosmetic" column shows how the finding usually sorts under the dangerous-or-unfit test. Your own facts can change that, and a lawyer should decide the close calls.

Notes on the rows that trip sellers up

Wiring. Ontario's Electrical Safety Authority says aluminum wiring is safe when connections and terminations are done properly. It also notes that some insurers won't provide or renew coverage without an ESA inspection and a Certificate of Acceptance. The ESA takes a similar position on knob-and-tube: it can be safe if a licensed electrical contractor maintains it, but many insurers won't cover it. In both cases, the certificate is the document that makes the finding manageable. Put it in your file before you list.

Kitec. This is one of the few materials a regulator has addressed directly. A Real Estate Magazine report cites the Real Estate Council of Ontario describing Kitec as a material fact to disclose, and quotes Carson Dunlop saying that the failures it has seen in the GTA are few and mostly linked to poor installation, unusual temperatures or high pressure.

The insurance picture varies. Square One says it can insure most Kitec homes with no leak history but applies a higher deductible to losses caused by the system.

Poly-B. Some sellers still assume the class action will pay for replacement. It won't. The Government of Alberta notes that the Canadian claims deadline was May 31, 2005, or up to 15 years after installation.

Vermiculite. Keep this one in proportion. The federal government says some vermiculite insulation may contain tremolite asbestos and that there's no evidence of a health risk when it's sealed or isolated in an attic. The advice is not to disturb it. For a seller, that means getting a lab test and disclosing the result, not ripping it out in a hurry.

Oil tanks. In Ontario, the Technical Standards and Safety Authority says only a TSSA-registered petroleum contractor may remove a buried fuel oil tank, an unused underground tank must be removed unless TSSA approves leaving it in place, and removal requires an environmental assessment report. If your report mentions a fill pipe and you have no removal paperwork, sort that out before you list.

UFFI. The National Research Council estimated that UFFI had gone into about 80,000 Canadian homes before it was banned under the Hazardous Products Act. It still turns up as a disclosure question on seller forms, so if you know it's there, say so.

Moisture and mould. A "suspected microbial growth" note doesn't tell you what the growth is or how much of it there is. It tells you there's a moisture problem.

Our guide on what a home mould inspection includes explains how to hire someone who can answer those questions.

The table below reflects sources checked on September 15, 2026. Forms and association practices change, so confirm the current version with your brokerage or lawyer before relying on it.

What sits behind the table

The form is not the duty. Outside Quebec, every province leaves the form up to the seller, but the common-law duty to disclose known material latent defects applies either way. In British Columbia, BCFSA calls the Property Disclosure Statement voluntary and also tells licensees they must disclose a known material latent defect themselves if the seller won't, or stop acting for that seller.

Quebec runs on a different system. The OACIQ makes the Declarations by the seller of the immovable mandatory in residential brokerage transactions with a natural person. It asks specifically about water damage, soil contamination, pyrite, radon, dry rot and asbestos, along with the condition of the roof, plumbing and heating. The broker also gives a copy to the building inspector.

Behind the form is article 1726 of the Civil Code, which, as CondoLegal quotes it, requires the seller to warrant that the property is free of latent defects that make it unfit for its intended use, or that reduce its usefulness so much the buyer wouldn't have bought it or paid as much.

Seller knowledge changes the analysis a great deal: as De Grandpré Chait explains, it makes limitation-of-liability clauses unenforceable and opens the door to damages. A Quebec seller with a report in hand should talk to a notary before relying on a "without legal warranty" sale.

Ontario's optional form can add risk. An Ontario real estate lawyer notes that the SPIS is optional and that it can turn every checkbox into a representation, so a wrong answer can lead to a misrepresentation claim that silence wouldn't have. Many Ontario sellers, on advice, skip the form and answer specific written questions instead, or put the key facts in Schedule A.

Alberta's contract goes further than the common law. The standard Alberta purchase contract, as Kahane Law explains, defines a material latent defect as one not discoverable through a reasonable inspection that "will affect the use or value of the Property." Because that definition includes value, it covers more findings than the dangerous-or-unfit test.

The Prairies apply the same common-law test. Saskatchewan's public legal education body says a disclosure statement isn't required but that sellers must still tell buyers about known defects a reasonable inspection wouldn't reveal, such as past basement water or leaking windows.

Manitoba's version is published on the provincial forms portal as an appendix to the residential offer form, for disclosing condition "to the best of the seller's knowledge."

In Atlantic Canada, the contract decides how much the form matters. The Nova Scotia Real Estate Commission says sellers aren't required to provide a PDS but most do.

In New Brunswick, a local REALTOR's explainer points out that once a seller ticks "WILL" in clause 10 of the standard agreement, providing the form becomes a contractual obligation. The same piece cites Duplessis v. Harrison, where a seller who knew about hidden wood rot was held responsible for the repairs.

On Prince Edward Island, the provincial association's agreement form gives buyers a box to confirm they did not receive a PCDS.

In Newfoundland and Labrador, the association's disclosure form tells sellers to answer "do not know" when they're unsure.