Bathtub Replacement Cost in Canada: Tub Swap vs Walk-In
What a like-for-like tub swap involves, what a walk-in tub or shower costs, and how to decide which suits your bathroom and your budget.
A walk-in tub typically costs $5,500 installed in Canada, with most jobs landing between $4,300 – $7,150 before GST/HST. A walk-in shower conversion typically costs $6,000. A plain tub-for-tub swap is usually the cheaper job, but only if the plumbing and walls cooperate.
Below we explain what a standard swap involves, where the extra costs hide, and when converting makes more sense than replacing.
What a standard tub swap involves
A like-for-like replacement is more than lifting one tub out and dropping another in. The work normally includes:
- Disconnecting and removing the old tub, which is often cast iron or steel and heavy enough to need two people or cutting up on site.
- Checking the drain, overflow and supply connections, and replacing worn fittings.
- Setting the new tub on a level base and reconnecting the waste.
- Replacing or repairing the surround or wall tile, because the old tub's edge sits behind it.
- Making good the floor and wall finishes.
Our estimates build up from labour hours × local rates plus materials, then check them against market prices and real quotes. The tub itself is often the smaller part of the bill. Labour, the surround and the wall repair make up much of it.
Where the hidden costs sit
- Tile and surround. If the tub is tiled in, a new tub with a slightly different footprint leaves gaps or damaged tile. Budget for a partial retile, or for a full surround.
- Rot and water damage. Once the tub is out, we often find soft subfloor or mouldy framing. This is the usual surprise, and it is hard to price before demolition.
- Plumbing relocation. Moving the drain or taps takes licensed plumbing work and usually a permit. Electrical, gas and plumbing work in Canada needs licensed trades and usually a permit.
- Access. A tight bathroom, a stairway too narrow for a cast-iron tub, or an upper floor all add time.
- Disposal. Old cast iron is heavy, and haul-away is normally a line item.
If your bathroom needs all of this plus new fixtures and finishes, compare the tub swap against a full Bathroom remodel. Once the walls are open, the extra cost of redoing the room is often smaller than people expect.
When a walk-in tub makes sense
A walk-in tub suits someone who still wants to soak but struggles to step over a high tub wall. It has a door, a seat and a sealed watertight design, so it needs time to fill and drain with you inside. See our Walk-in tub guide for the full breakdown.
Things to weigh:
- It costs more than a basic swap, and it often needs extra plumbing or electrical work for the door seal, jets or heated seat.
- The tub is bulkier than a standard one, so check the room, door and floor strength.
- You must sit through filling and draining, which some people find a drawback.
When a walk-in shower is the better call
If you mainly shower, or if mobility is declining, a Walk-in shower conversion removes the tub wall altogether. It typically costs $6,000, within a range of $4,700 – $7,800, and it frees floor space. The trade-off is that you lose the bath, which can matter for resale if it is your only tub in the house.
| Option | Typical cost (before GST/HST) | Best for |
|---|---|---|
| Walk-in tub | $5,500 | Keeping a soak with a low entry |
| Walk-in shower | $6,000 | Daily showering, easy access |
| Full bathroom remodel | $20,100 | Tired room, water damage, new layout |
Getting help with the cost
For accessibility work, the federal Home Accessibility Tax Credit applies to up to $20,000 of eligible expenses per year, for people aged 65+ or eligible for the disability tax credit. Check eligibility before you sign a contract. GST/HST applies to renovation work on top of our figures.
Adding a stair lift may also be part of the same plan; see our Stair lift guide.
How to decide
- Ask whether anyone in the home finds the tub wall a problem now or likely will soon. If so, convert rather than replace.
- Check the subfloor and walls before committing to a budget. Ask contractors to price a rot-repair allowance separately.
- Get at least three written quotes from licensed trades, with the surround, disposal and permits itemised.
- Run each quote through our "is my quote fair" tool to see how it compares with local labour and material rates.
A cheap swap that needs a second job six months later is not cheap. If the bathroom is ageing and the user mix is changing, doing the conversion once is usually the better value.