Professional Bathroom Demolition in the West Island – Dust-Free & Ready for Renovators
We strip your old bathroom to the studs in 1 day. No dust in the hallway. No damage to your floors.
Don’t Start Your Renovation in a Cloud of Dust
Let’s be honest: The demolition phase is the part of a renovation that homeowners dread the most. The noise, the debris, and the fear that a layer of fine white dust will settle on every piece of furniture in your house.
Most general contractors or “Jack-of-all-trades” crews view demolition as brute force labor. They smash tiles with sledgehammers, track debris through your clean hallways, and often leave a mess that takes days to clean.
We do things differently.
At Demo Prep, we view demolition as surgical removal. Your West Island home is a valuable asset, not a construction site. We specialize in removing heavy cast-iron tubs, glued ceramic mesh, and difficult lath & plaster walls without damaging the critical plumbing or electrical systems you need to save.
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No Damaged Hallways: We protect your hardwood and carpet with heavy-duty Correx board before we even step inside. - ✅
No Clogged Drains: We cap plumbing and toilets immediately to prevent debris from falling into your stack. - ✅
No Hidden Surprises: We carefully expose the structure so your contractor can start with a clean, safe slate.
Why “Soft Strip” Demo Matters for Your Wallet
Many homeowners assume they can save money by doing the demolition themselves or hiring cheap labor. However, bathrooms are the most complex rooms in your house. Behind those tiles are high-pressure water lines, drainage stacks, and electrical circuits.
A careless swing of a sledgehammer can crack a stack or nick a wire, turning a $1,500 demo job into a $5,000 emergency plumbing repair. Our “Soft Strip” method involves peeling back layers—removing tiles, then board, then insulation—so we can see exactly what is inside the wall before we remove it.
The “White Glove” Demolition Protocol
We have developed a 4-Step Process specifically for occupied West Island homes. We treat your house like a museum, ensuring the renovation chaos stays contained inside the bathroom.
1. Protection (The Fortress)
Before a single tool enters your home, we prep the route. We lay Correx (impact-resistant hard plastic) on your stairs and hallway floors to prevent scratches from work boots. We seal the bathroom door with a ZIP-WALL plastic barrier system, creating a sealed airlock that prevents dust from escaping into your bedrooms.
2. Isolation (The Safety Check)
We locate and shut off the specific water valves for the bathroom. We remove the toilet and immediately cap the drain with a specialized plug to block sewer gases and prevent debris from falling in. We also tape off HVAC vents to ensure dust doesn’t travel through your ductwork to the rest of the house.
3. Extraction (The Heavy Lifting)
This is where the work happens. Tiles, tub, vanity, and drywall are removed methodically. We bag heavy rubble in manageable loads and walk them out of your house carefully. We never leave debris piles on your lawn. Everything goes directly into our bins or trucks.
4. The Clean Slate (Carpenter Ready)
We don’t just leave when the walls are down. We de-nail every stud, pulling out the thousands of rusty nails and screws left behind. We sweep and vacuum the subfloor and the wall cavities. We leave the room “Carpenter Ready”—meaning your renovator can walk in the next morning and start framing immediately.
West Island Specialists: We Know Your Walls
Demolition in the West Island is unique because the housing stock varies wildly from neighborhood to neighborhood. Because we work exclusively in this area, we know what to expect before we even open the wall.
Pointe-Claire & Baie-D’Urfé (Century & Mid-Century Homes):
Many of these beautiful older homes feature “Lathe and Plaster” walls. This material is incredibly heavy, dusty, and difficult to remove. It often hides older knob-and-tube wiring or cast-iron plumbing stacks. We have the specific tools to cut plaster cleanly without shaking the whole house.
Kirkland & Beaconsfield (1970s – 1990s):
These executive homes often have multiple layers of flooring. It is common to find a new tile floor glued directly over an old vinyl floor, which is glued to plywood. We have specialized floor scrapers to peel back these layers down to the original subfloor so your new tile will sit perfectly flat.
Dollard-Des-Ormeaux (Split Levels):
Split-level bathrooms are often tight spaces with difficult access. We are experts at maneuvering heavy cast-iron tubs down narrow staircases without marking your walls.
Transparent Pricing for West Island Homes
Stop guessing. We use a standardized pricing model based on square footage and complexity. No hidden fees, no “surprise” hourly charges.
Standard 5×8 Bathroom Gut
Estimated Range: $1,250 – $1,800
- Includes: Removal of tile floor, vanity, toilet, standard tub/shower, and drywall down to studs.
- Disposal: All disposal fees included.
Master Ensuite (Large)
Estimated Range: $2,200+
- Includes: Removal of jacuzzi tubs, double vanities, glass shower enclosures, and full-height wall tile.
- Custom Care: Careful removal of mirrors or fixtures you wish to donate/sell.
(Note: Prices may vary for homes with “Lath & Plaster” walls or 3rd-floor walk-ups. Submit photos for a Guaranteed Fixed Price.)
Frequently Asked Questions
How long does a bathroom demolition take?
Most standard 5×8 bathrooms can be fully gutted in one day (approx. 6-8 hours). Larger master ensuites or bathrooms with heavy plaster/cement beds may take 1.5 to 2 days.
What do you do with the toilet and old vanity?
We handle full disposal. If your vanity or fixtures are in good condition and you wish to donate them (e.g., to Habitat for Humanity), let us know in advance! We can carefully detach them for you.
Do I need to rent a bin?
No. Our quote includes all disposal fees. We typically use our own trucks or temporary bins that are removed immediately after the job is done. You won’t have a rusty container sitting in your driveway for weeks.
What if you find mold or asbestos?
Safety is our priority. If we uncover suspicious materials (like vermiculite insulation or black mold), we stop work immediately, seal the area, and notify you. We can guide you on the proper testing and abatement protocols required in Quebec.
Serving Renovation Projects In:
We are the West Island’s dedicated demolition specialists. We are fully insured and RBQ licensed.
Your Renovation Starts with a Clean Slate
Don’t let a cheap demolition crew ruin your renovation timeline. Send us a photo of your bathroom today, and we will get you a guaranteed price.
