A bathroom renovation looks simple from the outside — tile, vanity, mirror — but it is the most failure-prone room in a house. Water finds every shortcut in the waterproofing. Ventilation undersized by 20 CFM grows mildew within a year. A tile pattern laid out from the wrong wall ends in a sliver at the focal corner. We've been building bathrooms in Montreal for 25 years, and every detail in the list below is something we caught — or fixed — at a previous client's house.
What we handle
- Layout planning around fixed plumbing stacks, especially in pre-1980 Montreal stock
- Waterproofing systems (Schluter Kerdi, Wedi, DensShield) with full pre-tile flood test
- Tile work: large-format porcelain, stone mosaics, herringbone subway — pattern set on drawings before ordering
- Custom and semi-custom vanities, mirrors, and storage millwork
- Plumbing fixture supply and installation (faucets, valves, drains, toilets, bidets)
- Shower glass — frameless, semi-frameless, fluted, with bottom-channel weeps
- Heated flooring (electric mat or hydronic loop), niche heaters, towel warmers
- Mechanical: exhaust fans, make-up air, drain re-pitching where stacks are settled
- Permits and condo-board submissions when required
What it costs
Most bathroom projects in Montreal and the West Island land between $18,000 and $65,000. A powder room or a same-footprint refresh with mid-grade tile and a stock vanity usually runs $18K–$30K. A primary ensuite with a curbless shower, stone-slab walls, double vanity, heated floor, and integrated lighting usually runs $40K–$65K. The line items that move pricing fastest are stone-slab vs. tile, frameless glass enclosures, and heated-floor coverage.
How the schedule works
A bathroom from signing to keys typically takes 6–10 weeks: 2–4 weeks of design refinement and ordering (tile, slab, glass templating, vanity build), 3–6 weeks on site. We do not break ground until tile, fixtures, and glass templates have shipped — chasing materials mid-project is the single biggest cause of delays. In a condo we add 2–4 weeks for board approval, scheduled in parallel.
Recent bathroom projects
See the project gallery for the full list:
- West Island residence — Two ensuites and a powder room
- Old Montreal rental — Compact bath in a heritage building
- DDO full house — Primary ensuite plus secondary baths