Bathroom rough-in plumbing
Supply and drain lines run and inspected before the tiler closes the walls — the foundation of any bathroom renovation.
Ville-Marie, Le Sud-Ouest, Outremont and Le…
Renovation plumber in Montreal: rough-in and finishing
Redoing a bathroom or kitchen and the drain won't go where you planned? We connect you with a renovation plumber who works alongside your contractor, tiler and cabinetmaker, in Ville-Marie, Le Sud-Ouest, Outremont and Le Plateau.
- Free, no-obligation quote
- Connected with a plumber used to working alongside tilers and cabinetmakers
- Itemized quote before the walls close
- Fast reply, in French and English
All services
Drain relocation and venting
Moving a toilet or shower by a few feet usually means moving the drain — and its vent. We work out what's actually possible before anything gets broken open.
Wall-hung toilet and in-wall carrier
A carrier frame anchored to the structure, drain and supply built into the wall: more plumbing and framing work than a floor-mounted toilet, for a result that's easier to clean.
Kitchen island and appliance hookups
Sink, dishwasher or garburator in an island: with no wall to hide the vent, the drain needs a different approach.
The plumbing behind a good-looking bathroom
A bathroom or kitchen renovation runs on a set order: demolition, rough-in plumbing, inspection, closing the walls, tile, fixtures. Rough-in is the easiest line item to underestimate, because it disappears behind the drywall within days — and the most expensive to fix once the walls are closed.
Moving a drain, hanging a wall-mounted toilet, feeding a kitchen island: each of those choices depends on what's under the floor, the slope available to the waste stack, and, in a condo, the syndicate's rules on work touching common areas. We connect you with a plumber who asks those questions before starting, not after.
This site serves Ville-Marie, Le Sud-Ouest, Outremont and Le Plateau, in French and English. The quote accounts for the building — a new condo tower, a greystone duplex, a plex with an interior staircase — and the schedule of the rest of the job.
Indicative ranges
Montreal renovation plumbing price guide (2026)
- $2,800 – $5,500Complete bathroom rough-in plumbing
- $900 – $2,200Drain relocation (wood joist floor)
- $2,200 – $4,800Drain relocation (concrete slab, cutting included)
Indicative prices before tax, based on recent jobs in the Montreal area. Every quote follows a site visit or a detailed plan. Montreal renovation plumbing price guide (2026).
Areas we serve
We serve Ville-Marie, Le Sud-Ouest, Outremont and Le Plateau.
Guides
Can this drain be moved? What decides the answer
Joist or slab, slope, venting, condo rules: the factors that decide whether a drain can move, and by how much.
The order of a bathroom renovation
Demolition, rough-in, inspection, tile, finishing: the schedule that avoids reopening a wall that's already closed.
Free quote for the plumbing side of your renovation.
Free written quote. We call back the same business day.