
Legal expertise in hidden defects in Trois-Rivières: Secure your recourse with GEQ
Have you discovered a hidden defect? Is your buyer suing you? Consult a building expert specializing in hidden defects.
The discovery of structural rot, widespread mold, or a major water leak after purchasing a property in Trois-Rivières is a critical situation requiring high-level technical intervention. At GEQ – Bâtiment Conseil , we act as experts to determine whether a problem meets the rigorous legal criteria for a latent defect.
For a claim to be valid, the defect must have been present at the time of the transaction, remained hidden during a diligent pre-purchase inspection, and be of such severity that it diminishes the value or usability of the building. Whether you are a buyer who has been defrauded in a home in Old Trois-Rivières or a seller unjustly sued in Cap-de-la-Madeleine, our impartial expertise forms the foundation of your legal strategy in the Mauricie region.

What is a hidden defect? Distinction between a hidden defect and an apparent defect. How to prove a hidden defect. Legal time limits for reporting a hidden defect. Why use an expert? Steps in a hidden defect expert assessment.
In the legal sense, a defect is a defect which renders the good unfit for its use or which diminishes its value. The buyer, if he had known about the problem, would not have bought the property or at least would not have paid the asking price.
More specifically, a latent defect is a defect that the buyer could not detect and of which he was not aware at the time of the sale. This is a serious construction defect which may impair the usefulness of the property concerned. Similarly, this latent defect depreciates the value of the property.
To engage the responsibility of the seller, several “proofs” must be entered in the file. Among other things, it must be proven that the defect existed at the time of the sale as opposed to a defect that could have appeared since the buyer became the owner. It is also necessary to demonstrate that the defect was "hidden" as opposed to an "apparent" defect.
The building experts of Groupe Expert Québec are recognized as experts by the Court and they have delivered numerous expert testimonies in matters of latent building defects before the courts. We specialize in building inspection & expertise.
Our experts also have specific training in latent building defects.
The expert report or the technical-legal expert report of the building is filed in the court file for the purposes of liability and the resolution of construction disputes, poor workmanship and hidden defects.

Mold on foundation wall
This fungus proliferates hidden behind the insulation.

Water infiltration through the roof
Water seeps in through the roof during rain or snowmelt.

Iron ochre in the drains
Iron ochre clogs the French drain and causes water infiltration.

Structural rot
Infiltration d'eau et pourriture de la structure

Ceramic shower water leak
Shower water leak and rot

Water infiltration through concrete slab
water infiltration caused by an excessively high water table
High-quality technical and legal expert reports
At GEQ – Bâtiment Conseil, our technical-legal expert reports are written with exemplary rigor, impeccable objectivity and editorial clarity, which make them powerful tools in litigation contexts.
Each report is supported by detailed observations, industry-standard technical analysis, and relevant corrective recommendations. Our experts, recognized for their credibility in court, deliver structured, convincing, and legally defensible documents.
Trust GEQ for a report that makes a difference.
Network extent
Present in all regions.
The GEQ — Building Consulting network extends across the province of Quebec, present in several geographic regions, in urban as well as rural areas.

Founded in 2017, GEQ — Bâtiment Conseil is a reference in building inspection and expertise, recognized by the courts.
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