Demolition in Montreal

It depends on the scope of the work and the borough. If load-bearing walls or structural elements are affected, a transformation permit is generally required. For a demolition affecting 50% or more of a building's structure, a demolition authorization certificate is required. Kasa Demolition reviews the requirements that apply to your borough and guides you through the process.

Timelines vary depending on the borough and the type of permit required. A transformation permit for interior demolition can be processed within a few weeks, while a demolition authorization certificate reviewed by the borough's demolition committee can take 45 days or more. We assess your file as soon as you submit your request to give you a realistic timeline.

Buildings built before 1990 are more likely to contain asbestos in insulation, floor tiles or textured ceilings. Before any demolition, we recommend an assessment. If hazardous materials are detected, we coordinate with certified firms for decontamination before resuming the work.

Yes. We work in every borough of Montreal, from Verdun to Saint-Laurent, including Westmount, Outremont, Plateau-Mont-Royal and Rosemont. Each area has its own regulations, and we adapt our approach accordingly.

The price depends on the size of the space, the materials to be demolished, the method used, debris removal, your borough's regulations and the location. Kasa Demolition always provides a detailed quote after an on-site assessment.