How much to move a toilet 6 feet in a Toronto bath?

Moving a toilet 6 feet in a Toronto bathroom typically costs $1,500–$4,500, depending on the complexity of your drain configuration and whether you have a basement or slab foundation.

That's a wider range than most homeowners expect, and the reason comes down almost entirely to one thing: the drain. Toilets require a 3-inch drain line with a specific slope (1/4 inch drop per foot of run), and that drain needs to connect back to your main stack. Moving the toilet 6 feet means extending or rerouting that drain line 6 feet — and where that pipe has to travel determines most of your cost.

If your bathroom is above an unfinished basement, this is the most straightforward scenario. A plumber can access the drain from below without major demolition, run the new drain line, and relocate the toilet flange. In this case, you're likely looking at $1,500–$2,500 in labour and materials. If your basement ceiling is finished with drywall, add $300–$800 for opening and patching. If you're on a concrete slab (less common in Toronto houses, but found in some Scarborough and Etobicoke bungalows), the plumber has to cut and jackhammer the concrete to reroute the drain — that pushes costs to $3,000–$4,500+ and adds 1–2 days of work.

Beyond the drain, the project also involves capping the old supply line and running a new one to the toilet's new location, patching the subfloor where the old flange was, and repairing the finished floor. If you have tile, budget an additional $200–$600 for tile matching and patching — and be aware that finding matching tile in older Toronto homes (especially century homes in The Annex or Leslieville) can be a challenge.

On the permit side, Toronto Building Division requires a plumbing permit for drain relocations. Your plumber should pull this — if they suggest skipping it, that's a red flag. Unpermitted plumbing work can create serious problems when you sell your home or make an insurance claim. Permits for this scope of work typically run $150–$300 through the City of Toronto.

This is firmly a licensed plumber job — not a DIY project. Improper drain slope causes chronic clogs and sewer gas issues, and the work needs to be inspected.

Your next steps: Get 2–3 quotes from licensed plumbers, confirm they'll pull the required permit, and ask specifically whether your bathroom has basement access below it. That single question will tell you a lot about where your project lands in that cost range. You can find licensed plumbing contractors serving Toronto and the GTA in the Toronto Construction Network directory.