Walk-in tub vs. walk-in shower: which costs less to install?

A walk-in shower typically costs $6,000 installed, against $5,500 for a walk-in tub — so the shower usually wins on price. But cost per unit isn't the whole story: the two solve different mobility problems, and picking on price alone can leave you paying twice.

The straight cost comparison

	Basic	Typical (mid)	Premium
Walk-in shower	$3,300	$4,700 – $7,850	$9,550
Walk-in tub	$3,350	$4,300 – $7,150	$8,700

Both prices are before GST/HST. The gap is mostly labour, not materials. A walk-in shower is close to a standard bathroom retrofit: tear out the old tub, build a low or zero-threshold pan, tile or panel the walls, add a fold-down seat and grab bars. A walk-in tub adds a sealed door with a gasket that has to hold water pressure for years without leaking, a fast-fill valve and drain so you're not waiting 15 minutes for the water to reach your chest, and often a top-up heater because filling a deep tub can outpace a standard tank. We price both the same way: labour hours at local trade rates plus materials, checked against market quotes and real installer pricing — not a single average pulled from a brochure.

For the full breakdown, see our Walk-in shower and Walk-in tub cost guides.

Where the tub costs come back

The purchase price is only part of the bill. Three things regularly get missed when people budget for a walk-in tub:

• Water heater capacity. A soaking-depth walk-in tub can hold 50–80 gallons. If your tank can't refill fast enough between baths, or can't reach the tub before the water cools, you may need to upsize. Check our Water heater replacement guide before you commit to a tub model.
• Wait time to bathe. Because the door has to be latched and sealed before filling, and drained before you can safely open it and step out, a walk-in tub takes longer to use than a shower. For someone who needs several baths a day, or a caregiver on a schedule, that adds up.
• Floor and doorway. Both options can need blocking under the floor to carry the extra weight of water, and a wider bathroom doorway if the existing one doesn't clear a wheelchair or walker. Neither option avoids this if your bathroom is small — it's a bathroom-layout cost, not a fixture cost.

If the bathroom needs more than a fixture swap — new subfloor, a wider doorway, moved plumbing — price it as a renovation rather than a single fixture; see Bathroom remodel.

Which one actually fits the mobility need

The right choice depends less on price and more on how the person bathes and how much help they have:

• Choose a walk-in shower if the person can stand or sit on a shower seat with minimal help, wants a fast in-and-out routine, or lives with someone who'd otherwise need to lift them in and out of a tub. It's also the safer bet for resale — most buyers see a curbless shower as an upgrade, while a walk-in tub reads as a medical fixture to remove.
• Choose a walk-in tub if soaking is part of pain management or a doctor's recommendation, if the person is more stable sitting than standing, or if a caregiver is present to help with filling, draining and the wait between them. The sealed door also means less risk of water pooling on the floor between uses, which matters if balance on a wet floor is the real hazard.

Neither is universal. Some households install a walk-in shower now and keep the option to add a tub later if mobility changes — check that any reinforced flooring you install is rated for a filled tub, not just a shower pan, so you're not redoing the subfloor twice.

Don't forget the stairs

If the person also struggles with stairs, a bathroom fixture alone won't solve the whole problem. A stair lift starts at $3,650, with reconditioned units usually cheaper than new — see the full breakdown:

Material	Typical	Usual range	Lifespan
Reconditioned	$2,750	$2,150 – $3,550	–
New	$4,500	$3,500 – $5,850	–

More on pricing and options in our Stair lift guide.

Paying for it

Canada's federal Home Accessibility Tax Credit covers up to $20,000 of eligible expenses per year for homeowners aged 65 or older, or anyone eligible for the disability tax credit — a walk-in tub or shower conversion typically qualifies. It's a tax credit, not a rebate, so it reduces what you owe rather than paying a contractor directly; ask your accountant how it applies to your situation.

Whichever fixture you choose, get at least two quotes before you sign anything — the range between basic and premium installs is wide, and it isn't always the premium finish driving the difference. If you already have a quote in hand, run it past our "is my quote fair" tool before you approve the work.