Looking for demolition contractors in Montréal who can take a project from teardown to finished space? DemoPrep handles demolition, renovation, and landscaping across the island — the triplexes and duplexes of the central boroughs, the post-war bungalows of the West Island, and the condos and converted lofts downtown. RBQ-licensed (#5826-5448-01) and fully bilingual, we run your whole project under one roof. Call 514-613-8344 for a free quote.
Planning a Project in Montréal?
Don’t juggle three different companies. We handle the demolition, the renovation, and the landscaping under one roof — and we partner cleanly with your general contractor when a larger build calls for it.
Demolition Across Every Type of Montréal Home
Montréal’s housing isn’t one thing, and neither is the work. We match the method to the building, across the island’s very different neighbourhoods.
- Central plateaus (Plateau, Rosemont, NDG): the triplexes and duplexes with exterior staircases — interior demolition in attached, often occupied, plexes.
- West Island (Pointe-Claire, DDO, Beaconsfield): post-war bungalows and split-levels on large lots — full interior gut-jobs and additions.
- South-West & the east end: 19th-century rowhouses and post-industrial loft conversions — selective demolition in tight, attached housing.
- Downtown & the core: condos and concrete buildings — clean interior demolition and fit-outs.
Phase 1: Demolition That Respects Your Property
Whether it’s a plaster-and-lath triplex or a concrete condo, our crews handle full interior gut-jobs and selective demolition with the dust, noise, and access control that city work demands — protecting shared walls, neighbours, and the parts of your building that stay.
- Interior Demolition: safe removal of walls, flooring, and cabinetry, including load-bearing and party-wall assessments.
- Structure Removal: garage, shed, and rear-extension demolition.
- Concrete Removal: driveway, walkway, and basement-slab tear-outs.
We handle proper disposal of all materials — wood, masonry, metal — at authorized Montréal recycling facilities. See our full demolition services →
Phase 2: Renovations That Fit How You Live
Most Montréal renovations are about making an older layout work for how people live now — opening a closed kitchen, modernizing a bathroom, or finishing a basement — while keeping the character that makes the city’s homes worth keeping.
- Kitchen Remodels: opening up compartmentalized kitchens.
- Bathroom Makeovers: updated fixtures and efficient layouts.
- Basement & Loft Finishing: turning underused space into livable rooms.
Explore our renovation services →
Phase 3: Outdoor Spaces for Montréal Properties
From a downtown courtyard to a West Island backyard, we build outdoor spaces for the Montréal climate, with proper drainage to protect foundations through freeze-thaw winters.
- Grading & Drainage: keeping water away from foundations.
- Hardscaping: paver patios, stone paths, and concrete steps.
- Privacy: cedar fences and green screens.
Why Choose DemoPrep, Demolition Contractors Montréal
We work across the whole island — and we know that the rules and the buildings change from one neighbourhood to the next. We bring the same RBQ-licensed crews, dust control, and one-partner approach whether you’re in a central triplex, a West Island bungalow, or a downtown condo.
- RBQ licensed (#5826-5448-01) and fully insured
- Bilingual crews (English + French)
- Free, no-pressure quotes
- Clean, on-time job sites that respect your neighbours
Permits Across Montréal
In the City of Montréal, demolition and structural renovation permits are issued through your borough. The West Island’s independent cities — Pointe-Claire, Dollard-des-Ormeaux, Beaconsfield, Kirkland and others — run their own permit processes instead, and larger demolitions there can require a demolition committee review. We know which rules apply where, and we manage the paperwork either way. You can start with the City of Montréal’s guide to getting a demolition permit.
Frequently Asked Questions
Do I need a permit to demolish part of my home in Montréal?
In most cases, yes. Interior demolition that affects structure, and any exterior demolition, typically requires a permit — through your City of Montréal borough, or through your municipality if you’re in an independent West Island city. We handle the application as part of the job.
Can you work in an occupied triplex or condo without disturbing the neighbours?
Yes — it’s a lot of what we do in Montréal. We contain dust, control noise, and schedule around occupied units so work in one home doesn’t make the rest of the building unlivable for neighbours or tenants.
My Montréal home was built before 1980 — should I worry about asbestos?
It’s worth checking. Asbestos was common in Montréal homes built before 1980, in insulation, flooring, and plaster and drywall compound. DemoPrep is certified and trained for all levels of asbestos removal, from minor non-friable work to high-risk friable abatement. We test before any demolition, and when removal is needed our crews work inside HEPA-filtered (99.97%) containment using MSA Advantage 3200 full-face respirators with P100 Flexi-Filters, following CNESST requirements. It’s not something to disturb without knowing.
Do you handle demolition, renovation, and landscaping together?
Yes. That’s the point of working with us — one team for the demo, the rebuild, and the outdoor work, instead of coordinating three separate contractors yourself.
Get Your Free Estimate in Montréal
Whether you’re starting with demolition, planning a renovation, or rethinking your outdoor space, DemoPrep is ready to help. RBQ #5826-5448-01.