Looking for reliable demolition contractors in Montréal’s South-West? DemoPrep handles demolition, renovation, and landscaping across Le Sud-Ouest — from the 19th-century brick rowhouses and stacked duplexes of Saint-Henri and Pointe-Saint-Charles to the new condos and converted lofts of Griffintown. 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 the South-West?
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.
Serving Every Part of the South-West
Le Sud-Ouest runs from the heritage working-class streets of Saint-Henri to the glass condo towers of Griffintown, and the work changes with the housing. We know the borough’s building stock, old and new.
- Saint-Henri: heritage brick rowhouses and plexes — interior gut-jobs and unit modernizations in attached housing.
- Pointe-Saint-Charles: the stacked duplexes and triplexes this part of the city is known for — careful work in tight, attached homes.
- Little Burgundy & Côte-Saint-Paul: a mix of older plexes and newer infill — renovations and selective demolition.
- Griffintown & the canal: new condos and converted-factory lofts — interior fit-outs and selective demolition in concrete buildings.
Phase 1: Demolition That Respects Your Property
Much of the South-West is attached housing — rowhouses and stacked plexes that share walls with the neighbours. Our crews handle full interior gut-jobs and selective demolition with the dust and noise control that matters when the home next door is a few inches away, and we work just as cleanly inside Griffintown’s concrete condos and lofts.
- Interior Demolition: safe removal of walls, flooring, and cabinetry, including load-bearing and party-wall assessments in attached homes.
- Structure Removal: shed, garage, and rear-extension demolition.
- Concrete Removal: walkway, slab, and old footing 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
South-West renovations usually mean making a narrow, compartmentalized layout work for modern life — opening a rowhouse main floor, modernizing a dated kitchen or bathroom, or finishing a basement — or customizing a raw loft space in a converted building.
- Kitchen Remodels: opening the tight kitchens common in older plexes and rowhouses.
- Bathroom Makeovers: updated fixtures and efficient layouts in compact footprints.
- Basement & Loft Finishing: turning underused space into livable rooms.
Explore our renovation services →
Phase 3: Outdoor Spaces for Urban South-West Lots
South-West lots are small and urban, with courtyards, narrow backyards, and frontage close to the street. We build outdoor spaces that fit the neighbourhood, with proper drainage to protect older foundations near the Lachine Canal.
- Grading & Drainage: keeping water off old foundations on tight lots.
- Hardscaping: paver patios, courtyards, and concrete steps.
- Privacy: cedar fences and green screens for close-set homes.
Why Choose DemoPrep, Demolition Contractors in the South-West
We know the South-West’s housing — the 19th-century rowhouses and stacked plexes, the party walls, the converted lofts and concrete condos of Griffintown. We also know how to work within the City of Montréal’s borough permit process and handle the asbestos that comes with the borough’s older buildings.
- 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 in the South-West
The South-West is a borough of the City of Montréal, so demolition and structural renovation permits go through the city. With so much of the borough’s housing dating to the 1800s and early 1900s, projects can also involve heritage considerations and — in pre-1980 buildings — asbestos that has to be handled properly. We manage the paperwork and the safety side so your project stays compliant. 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 South-West home?
In most cases, yes. Interior demolition that affects structure, and any exterior demolition, typically requires a permit through the City of Montréal’s Le Sud-Ouest borough. We handle the application as part of the job so you’re not navigating it alone.
Can you work on an attached rowhouse without disturbing the neighbours?
Yes — it’s most of what we do in the South-West. We assess party walls, contain dust, and control noise and vibration so work in your home stays in your home, even when the building next door shares a wall.
My South-West home was built before 1980 — should I worry about asbestos?
It’s worth checking, and in the South-West it’s common given how old much of the housing is. Asbestos was used 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 the South-West
Whether you’re starting with demolition, planning a renovation, or rethinking your outdoor space, DemoPrep is ready to help. RBQ #5826-5448-01.