Demolition in Montreal and South Shore
Safe, controlled residential and commercial demolition compliant with standards
Demolition is not just about tearing down a structure. Professional demolition requires planning, site security, safe disconnection of services, compliance with municipal permits, risk management (collapse, falls, dust) and responsible debris management.
Archi-Maitre Excavation offers complete demolition and partial demolition (renovation) services in Montreal and South Shore, for residential and commercial projects: houses, garages, sheds, outdoor structures, concrete slabs and related works, with debris evacuation to authorized sites.
Demolition Services
Residential Demolition
- •House demolition (according to project and applicable authorizations)
- •Garage demolition (detached or attached depending on context)
- •Shed / storage / outdoor structure demolition
- •Concrete slab demolition (driveway, patio, garage floor, outdoor works)
- •Partial demolition for renovation (controlled removal: extension, opening, section removal)
Commercial Demolition
- •Complete or partial structure demolition
- •Concrete work demolition
- •Preparatory demolition for reconstruction / redevelopment
Evacuation, CRD Sorting and Restoration
Demolition generates construction, renovation and demolition (CRD) residues. RECYC-QUÉBEC lists treatment facilities (sorting, transfer, reuse centers) and provides a list of CRD sorting centers.
Our objective: organize the site, limit unnecessary mixing, and evacuate to authorized channels, with sorting when relevant.
Demolition Permits and Municipal Compliance
Montreal: Permit / Certificate and Committee
The City of Montreal indicates that a permit (or authorization certificate) may be necessary to demolish a building and that, in several cases, the request must be evaluated by a committee.
More info →Quebec Framework: Municipal Regulation and Demolition Committee
Quebec.ca explains that municipalities regulate demolition via a regulation and that a request is analyzed by a demolition committee composed of elected officials, which may impose conditions.
Archi-Maitre approach: we structure your project to be compliant (permits, file requirements, site sequence, safety).
Safety: What We Put in Place Before Demolishing
Demolition Phases and Public Protection (CNESST)
CNESST provides forms (mechanical / manual demolition) that require recording demolition phases, protective means to protect the public, and elements related to public services.
Agreements / Coordination with Public Services
CNESST mechanical demolition form provides for agreement with public services (electricity, gas, others) and connection to Safety Code.
Site Cleanup and Public Roads Restoration
Safety Code provides that sidewalks/streets/public roads must be cleared of temporary obstructions and restored; demolished location must be cleaned and cleared of what can cause accidents/fires or harm public health.
Hazardous Materials: Asbestos and Dust (Silica)
Asbestos: Identification and Precautions
CNESST reminds that many buildings built before certain periods may contain asbestos materials; identification requires assessment and, if necessary, analyses.
Before major demolition/renovation, best practice is to verify potential presence of hazardous materials and adapt site method.
Crystalline Silica: Dust Control
CNESST indicates that to reduce exposure to crystalline silica dust, employer must implement dust control measures and provide appropriate RPE when required.
Our Demolition Process
(Archi-Maitre Method)
1) Site Assessment and Demolition Plan
Structure inspection (residential/commercial), constraint analysis: access, neighborhood, public roads, proximity of works. Method definition: complete vs partial demolition, sequence, areas to protect.
2) Permits and Regulatory Preparation
Verification of municipal requirements (Montreal + other cities). Preparation of required elements according to project (file, planning, conditions).
3) Site Preparation
Perimeter security (fences, signage, prohibited areas). Access and debris transport organization. Coordination for service disconnection/lockout as applicable.
4) Controlled Demolition
Staged demolition (stability control, logical sequence). Dust management measures and maintaining a clean site.
5) Evacuation, CRD Sorting, Final Cleanup and Leveling
Loading and transport to authorized sites. CRD sorting when relevant, according to available channels. Final cleanup and restoration required by safety framework (public roads + site).
Areas Served
Demolition Montréal
Residential and commercial demolition in Montreal, with attention to permit/certificate requirements and cases that may be evaluated by a committee depending on file nature.
Demolition Longueuil
Garage, shed, concrete demolition and demolition for renovation. Longueuil offers an online permit request portal.
Demolition Saint-Constant
Controlled demolition (garage, shed, slab, outdoor structures) with complete debris evacuation.
Demolition Varennes
Outdoor structure demolition and site preparation for next steps (earthwork/excavation).
Demolition Sainte-Julie
Residential demolition and partial demolition for renovation, clean and secure site.
Demolition Chambly
Garage/shed demolition, concrete works, controlled demolition for renovation.
Demolition Beloeil
Residential demolition (structures and concrete) and CRD management.
Demolition Saint-Jean-sur-Richelieu
Complete/partial demolition, concrete, evacuation and final cleanup.
Demolition Saint-Hyacinthe
Residential and commercial demolition with CRD management and site restoration.
FAQ – Demolition
Is a permit required for demolition?
Often yes. Montreal specifies that a permit/authorization certificate may be necessary and that a committee may need to evaluate the request depending on the case.
Do you do partial demolition for renovation?
Yes. Partial demolition requires a controlled sequence: protect what remains, secure perimeter, manage risks, and evacuate debris as we go.
What do you do with demolished materials?
We organize CRD residue management and direct to authorized channels. RECYC-QUÉBEC provides resources and a list of CRD sorting centers.
Why is service disconnection important?
Because services (electricity/gas/others) may be affected. CNESST mechanical demolition forms require documenting agreements with public services and demolition phases.
Should we worry about asbestos?
Yes. CNESST explains that materials may contain asbestos depending on periods and products; prevention requires identification and adapted precautions.
What happens after demolition?
Site must be cleaned and temporary obstructions removed; public roads must be restored according to Safety Code.
Need Demolition in Montreal or South Shore?
Contact Archi-Maitre Excavation for project assessment: planning, municipal compliance, site safety, evacuation and restoration.
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Official Demolition Resources
City of Montreal - Permit
Obtain permit for building demolition (permit / authorization certificate, committee depending on cases).
Government of Quebec
Municipal framework, regulations and building demolition committee.
CNESST - Mechanical Demolition
Form and requirements: demolition phases, protective means, agreements with public services.
CNESST - Manual Demolition
Form and requirements: phases and protective means.
CNESST - Form 1215 (PDF)
Notice of mechanical demolition project - Official form to complete.
RECYC-QUÉBEC - CRD
Construction, renovation and demolition residues: resources and best practices.
RECYC-QUÉBEC - Sorting Centers List
Complete list of CRD sorting centers in Quebec (Excel file).
RECYC-QUÉBEC - Facilities Directory
Lists of businesses and residual materials treatment facilities.