How much does bathroom renovation cost?

With Zigma Group, bathroom renovation starts from $12,500, and most projects fall between $13,500 and $26,000. Prices are in Canadian dollars before HST, as of October 2026, and are confirmed after a site visit. The main factors are size of the room and amount of tile; moving the toilet, drain or shower position; and custom glass, heated floors and fixture quality.

Can you convert a bathtub into a walk-in shower?

Yes. The tub is removed, the drain is adapted, the floor is sloped and waterproofed, and the walls are tiled. It is one of the most common bathroom changes we make.

Do I need a permit to renovate a bathroom in Ontario?

Not usually for replacing fixtures where they are. A permit is usually needed to add a bathroom or relocate plumbing. We confirm the rule for your municipality.

Why does the bathroom need to be stripped to the studs?

It lets us inspect and fix the plumbing, framing and any hidden water damage, and install continuous waterproofing. Tiling over old surfaces hides problems that return later.

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Bathroom Renovation

Rooms · Greater Toronto Area

Bathroom Renovation in the GTA

A bathroom is small but uses nearly every trade. We rebuild it from the studs out, with proper waterproofing behind the tile and plumbing that suits the new layout.

Call (647) 718-3913 Book a consultation

New walk-in shower with large-format grey tile, a glass panel and a built-in bench — From our Cobblestone Drive renovation

Scope

What is included.

Full strip-out to studs and subfloor
Waterproofing of showers, tubs and floors
Walk-in showers, benches and niches
Tile, stone and heated floors
Vanities, fixtures and frameless glass
Ventilation, lighting and electrical

Cost

What it costs.

From $12,500

Most projects: $13,500 to $26,000

What moves the price

Size of the room and amount of tile
Moving the toilet, drain or shower position
Custom glass, heated floors and fixture quality

Prices are in Canadian dollars before HST, as of October 2026. Every project is confirmed with a written quote after a site visit.

Before you start

What to know.

Permits
Replacing fixtures in the same positions usually needs no building permit. Adding a new bathroom or moving drains and vents usually does. Electrical work is filed with the Electrical Safety Authority.
What matters most
The parts you never see decide how long a bathroom lasts: the waterproofing membrane, the slope to the drain and the exhaust fan ducted outside.
Adding a bathroom
A new ensuite or powder room depends on where the drain stack and vents can run. We check that route before drawing the room.

How we work

One team for every stage.

AssessWe survey the house as it stands.
Design and permitsDrawings and approvals before work starts.
Strip-outWhat is worn out comes off.
RebuildStructure, wiring, plumbing and walls.
FinishesCabinetry, tile, floors and paint.
HandoverWalkthrough and documents.

Questions

Bathroom Renovation: the short answers.

How much does bathroom renovation cost?: With Zigma Group, bathroom renovation starts from $12,500, and most projects fall between $13,500 and $26,000. Prices are in Canadian dollars before HST, as of October 2026, and are confirmed after a site visit. The main factors are size of the room and amount of tile; moving the toilet, drain or shower position; and custom glass, heated floors and fixture quality.
Can you convert a bathtub into a walk-in shower?: Yes. The tub is removed, the drain is adapted, the floor is sloped and waterproofed, and the walls are tiled. It is one of the most common bathroom changes we make.
Do I need a permit to renovate a bathroom in Ontario?: Not usually for replacing fixtures where they are. A permit is usually needed to add a bathroom or relocate plumbing. We confirm the rule for your municipality.
Why does the bathroom need to be stripped to the studs?: It lets us inspect and fix the plumbing, framing and any hidden water damage, and install continuous waterproofing. Tiling over old surfaces hides problems that return later.

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