Buying · Latent defect · Liability
The question is not only who is liable, but in what order the doors open and which one leads to someone who can actually pay.
The first person liable is the seller. Article 1716 of the Civil Code of Quebec provides that the seller is bound to deliver the property and to warrant the ownership and quality of the property, and that these warranties exist by operation of law, whether or not they are stipulated in the contract of sale. What he owes depends on what he knew: article 1727 deals with restoring the price where the property perishes by reason of the defect, and article 1728 adds reparation for the injury suffered by the buyer where the seller was aware or could not have been unaware. Others can be liable too: article 1730 covers the manufacturer, the distributor and the supplier, and article 1442 makes it possible, in some files, to reach previous owners. The pre-purchase inspector answers under his service contract, not under the legal warranty.
Article 1716 states the principle: the seller is bound to deliver the property and to warrant the ownership and quality of the property. These warranties exist by operation of law, whether or not they are stipulated in the contract of sale. In other words, the seller had to promise nothing in order to be bound.
How much he owes depends on what he knew. That is the central distinction in the Civil Code on this subject.
Article 1442 provides that the rights of the parties to a contract pass to their successors by particular title if the rights are accessory to the property which passes to them or are closely related to it. That mechanism is what allows a buyer, in some files, to target not only the person who sold to them but also those who sold before, because the warranty follows the building.
It is not automatic and it has to be argued, but it matters when the immediate seller is insolvent, has left the country, or has died. Each link in the chain keeps its own defences, including the clauses of its own sale.
Article 1730 provides that the manufacturer, any person who distributes the property under his name or as his own, and any supplier of the property, in particular the wholesaler and the importer, are also bound to a seller's warranty. On a recent building, that door points at the builder and at the makers of defective components.
Article 1729 adds a useful presumption: in a sale by a professional seller, a defect is presumed to have existed at the time of the sale if the property malfunctions or deteriorates prematurely in comparison with identical property or property of the same type; that presumption is rebutted if the defect is due to improper use by the buyer. Against a professional seller, the buyer does not have to prove anteriority the same way.
The inspector does not warrant the quality of the house. He undertakes, by contract, to carry out a visual inspection in accordance with the standards of his profession and to report on it. His liability therefore turns on the contract and on the care taken, not on the legal warranty of quality.
That means two things. A genuinely invisible and undetectable defect does not engage the inspector. A defect a competent inspector should have flagged, and which fell within his mandate, does. Both claims can coexist in the same file.
Home insurance is designed to indemnify sudden and accidental damage, not to replace work that reached the end of its life or was badly built. Some policies also carry legal protection coverage that can cover the cost of a claim. These are contract questions, not Civil Code questions: the only reliable answer comes from your insurer, policy in hand, and it should be requested in writing.
These doors do not exclude each other and are often opened together. The sequence is detailed in the six steps of a claim.
No, it is directed at the succession. This is also one of the situations where the transmission of the warranty under article 1442 matters, because it allows looking further up the chain of owners.
Those sales are very often made without legal warranty, at the buyer's own risk, precisely because the heirs do not know the building. Article 1733 frames that exclusion and its limits. See the legal warranty in English.
That question belongs before you spend, not after. A judgment against an insolvent person does not turn into a cheque. That is often what justifies also targeting previous owners or the inspector.
The latent defect file: the four tests, the deadlines, the formal notice, the proof, the expert report, the six steps, small claims court, who pays, the seller who did not know, older homes, water infiltration, the roof, the inground pool and the septic system and the well.
Every article quoted here is reproduced from the official English text of the Civil Code of Quebec and the Code of Civil Procedure published by Légis Québec, both read on September 11, 2026. We give the article numbers so you can read them yourself. We are real estate brokers, not lawyers: we can tell you what the law provides and what your transaction left behind as evidence, but the analysis of your file belongs to a lawyer. When the amount at stake runs past a few thousand dollars, that call happens before the formal notice, not after.
The Loaa & Manseur team, led by Lotfi Manseur and Loaa Al Daow, is the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 of large residential teams according to the official RE/MAX ranking, computed on actual transactions. Its Google profile counts more than 220 reviews with a 4.9 rating. Its offices are at 55 avenue de l'Équinoxe in Brossard, one bridge from the island, and every broker's licence can be checked in the OACIQ public register. Three things to verify yourself before calling us, and to demand of any other broker.
Also available in French: version française de ce guide.
Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.
Équipe no 1 de RE/MAX Platine en 2024 et en 2025, 6e au Québec, 15e au Canada et dans le top 50 mondial au classement officiel RE/MAX. Réponse en moins de 24 heures, sept jours sur sept.