How long does a complete bathroom renovation typically take in a Toronto semi-detached home?

A complete bathroom renovation in a Toronto semi-detached home typically takes 3 to 5 weeks from demolition day to final walkthrough, though the total project timeline including planning, permits, and material lead times is usually 8 to 14 weeks from your first contractor meeting to completion.

The actual construction phase breaks down roughly as follows: demolition and subfloor inspection takes 1 to 2 days, plumbing rough-in and any drain modifications take 2 to 3 days, electrical rough-in (new GFCI outlets, exhaust fan wiring, heated floor circuit, vanity lighting) takes 1 to 2 days, and then you wait for the City of Toronto plumbing and ESA electrical inspections before closing up walls. That inspection wait can add 3 to 7 business days depending on the city's current backlog. After inspections pass, cement board and waterproofing take 1 to 2 days with cure time, tile installation takes 3 to 5 days depending on layout complexity and tile size, grout and sealing add another day, and then vanity installation, toilet setting, fixture trim-out, mirror, accessories, and paint fill the final 2 to 3 days.

What Extends the Timeline

Semi-detached homes in Toronto present a few specific considerations that can push the timeline. Shared walls between units mean your contractor needs to be careful with demolition near the party wall — any plumbing or electrical running along or through that wall requires extra planning and potentially coordination with your neighbour. Many Toronto semi-detached homes built in the 1920s through 1960s have cast iron drain stacks that may need to be replaced when opened up, which can add 1 to 3 days and $1,500 to $3,000 to the project. Galvanized steel supply lines in pre-1970s homes should be replaced with copper or PEX during the renovation — your plumber will likely recommend this once the walls are open, and it is absolutely worth doing.

Subfloor condition is the other major wildcard. Water damage around the toilet flange and along tub edges is extremely common in older Toronto homes, especially if the bathroom has not been renovated in 30+ years. Rotted subfloor sections or damaged floor joists can add 1 to 2 days for sistering joists and replacing plywood before any tile work begins.

Planning Time Before Construction

The pre-construction phase is where most homeowners underestimate the timeline. Getting 3 or more quotes from GTA bathroom contractors takes 2 to 4 weeks — good contractors in Toronto are typically booked 4 to 8 weeks out. Ordering tile, vanity, fixtures, and shower glass should happen as soon as you sign a contract, since custom or semi-custom items can have 3 to 6 week lead times. Building permits through the City of Toronto Building Division, if required for plumbing or electrical changes, take 10 to 15 business days for residential applications.

The best approach is to have every single material on-site before demolition day. Nothing stalls a bathroom renovation faster than waiting for a backordered vanity or a shower valve that is out of stock. Your contractor should provide a detailed schedule with milestones, and you should expect brief pauses for inspection bookings — these are normal and actually protect you by ensuring the work meets Ontario Building Code requirements.

Need help finding a bathroom renovation professional for your semi-detached home? Toronto Bath Remodeling can match you with experienced local contractors for free through the Toronto Construction Network.