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Demolition in Montreal
Interior, exterior and concrete demolition, plus debris removal, in every borough of Montreal. Permits managed, CNESST compliance, RBQ license 5797-3208-01.
RBQ License
5797-3208-01
CNESST Certified
Job Site Safety
APCHQ Member
Provincial Association
Liability Insurance
$5,000,000
Demolition in Montreal
Demolishing in Montreal: what you need to know before you start
Montreal has 19 boroughs, each with its own zoning regulations. From Plateau-Mont-Royal to LaSalle, through Westmount and Ahuntsic, Montreal's building stock is dense: plexes, triplexes, apartment buildings and semi-detached houses often share a party wall with the neighbour next door.
This density calls for extra care: protecting adjacent areas, controlling dust with HEPA filtration when needed, and coordinating with neighbours before work begins.
Many Montreal buildings were built before 1990 and may contain asbestos in insulation, floor tiles or textured ceilings. An assessment is recommended before any demolition.
Permits and regulations
Special permits that may be required in Montreal
Demolition authorization certificate
If the work involves demolishing 50% or more of a building's floor area and exterior walls (25% or more for a heritage building), a demolition authorization certificate is required. The application is reviewed by the borough's demolition authorization review committee.
Transformation permit for interior demolition
When load-bearing walls, the structure, plumbing or electrical systems are affected, a transformation permit is generally required before work begins, even for interior demolition.
Borough-specific regulations
Montreal has 19 boroughs, each with its own zoning regulations and processing times. Requirements vary by area, particularly in heritage zones such as Westmount, Outremont or Plateau-Mont-Royal.
Notice to occupants and relocation conditions
For a residential building, the City requires proof that notice was given to tenants, along with a document outlining relocation conditions, as part of a demolition certificate application.
Process
How to get a demolition permit in Montreal
Kasa Demolition reviews the requirements that apply to your project and guides you through every step of the process with the city.
Project assessment
We determine the scope of the work and the borough involved to identify which permits apply.
Identifying the required permit
A transformation permit for work affecting the structure, or a demolition authorization certificate for an entire building.
Preparing and filing the application
Plans, photos and required documents are prepared and filed with the borough.
Following up on the application
Processing time varies by borough and can take 45 days or more for a demolition certificate.
Start of work
Once authorization is obtained, demolition begins according to the schedule agreed with you.
Useful resources
Helpful links for your application
Services offered
Our demolition services in Montreal
Whether you need to clear out a kitchen, remove a deck or haul away job site debris, Kasa Demolition covers the full range of needs for Montreal homeowners and contractors.
Debris Removal
Fast, eco-responsible removal of construction debris and demolition materials throughout Montreal.
- Construction debris
- Demolition materials
- Sorted at certified facilities
- For homeowners and contractors
Interior Demolition
Kitchens, bathrooms, basements, partitions and floors demolished with HEPA filtration when needed to protect occupied spaces.
- Kitchen and bathroom
- Basement and partitions
- HEPA filtration available
- Permits reviewed at the quote stage
Exterior Demolition
Decks, balconies, sheds and garages demolished safely, with municipal permits managed from start to finish.
- Deck, terrace and balcony
- Shed and garage
- Facade and brick removal
- Municipal permits included
Free Quote
Ready to start your project?
Tell us about your project and we'll get back to you within 24 hours with a detailed estimate, no hidden fees.
Testimonials
What our clients say about Kasa Demolition
Kasa Demolition builds its reputation project by project across Montreal and the Greater Montreal area. Transparency, cleanliness, and on-time delivery.
“Kasa Demolition handled the complete demolition of our kitchen and bathroom. From the first call to the final walkthrough, everything was clear, clean, and on schedule. The municipal permits were handled without us having to lift a finger. A team you can truly trust.”
Marie-Claude T.
Rosemont, Montreal
via Google
“Serious, professional team available 7 days a week. The detailed quote matched the final price exactly. No bad surprises. That's rare in the construction industry.”
François B.
Westmount
“Complete basement demolition done in 2 days. Clean site, deadlines met to the day. We recommend them.”
Alexandre D.
Plateau-Mont-Royal
“Very satisfied. Living areas were well protected, proactive communication at every step. Excellent service.”
Sophie M.
Laval
4.5 / 5 on Google Business Profile
After Demolition
Need to Rebuild?
Our sister company, Kasa Entrepreneur Général, is RBQ certified and specializes in turnkey renovation and post-disaster reconstruction in Montreal.
From demolition to final delivery, you have a single point of contact.
- Complete turnkey renovation
- Building permits handled
- Architects and engineers coordinated
- Projects from $25,000 to $600,000
- RBQ Certified 5797-3208-01
Our team
Why choose Kasa Demolition in Montreal?
01
7 years of demolition experience
A team that knows the unique character of Montreal's building stock: plexes, apartment buildings, single-family homes and commercial spaces.
02
CNESST-certified, trained crews
Strict safety protocols, HEPA filtration when needed, and personal protective equipment on every job site.
03
RBQ License 5797-3208-01
Bonding, warranty plan and $5,000,000 liability insurance to protect your project.
04
Service in French, English and Spanish
Clear communication with every client, in the language of their choice, at every stage of the project.
Other services
Other demolition services in Montreal
Kasa Demolition also offers specialized services to round out your project, from decontamination coordination to concrete demolition.
Concrete Demolition
Basement slabs, driveways, patios and block walls removed with specialized equipment, without damaging adjacent structures.
- Basement slabs
- Driveways and patios
- Concrete block walls
- Partial foundations
Decontamination: Asbestos and Mold
Coordination of asbestos, mold and lead assessment and removal before demolition, with CNESST-certified firms.
- Asbestos and lead
- Mold
- Vermiculite
- CNESST-certified firms
Junk Removal
Removal of furniture, appliances, mattresses and other large items. Ideal for clearing out a unit quickly before renovation work.
- Furniture and appliances
- Mattresses and electronics
- Full unit clear-outs
- Eco-responsible disposal
Free Quote
Ready to start your project?
Tell us about your project and we'll get back to you within 24 hours with a detailed estimate, no hidden fees.
FAQ
Frequently asked questions about demolition in Montreal
Here are answers to the questions Montreal homeowners and contractors ask most often before a demolition project.
For any question specific to your situation, contact Kasa Demolition directly at (514) 812-8763.
Have a question specific to your project?
Contact usReady to get started
Start your demolition project in Montreal off right
Tell us about your project and we'll get back to you within 24 hours with a detailed assessment, no hidden fees.