Walk-In Tubs · Service

Converting the tub to a walk-in shower, for someone who needs it to work

Taking the tub out and putting in a low or no-threshold shower is the modification that most often solves the actual problem — and it is the one the walk-in tub industry has no reason to bring up. Here is what the work involves and where it is harder than it looks.

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In short

What is walk in shower conversion?

A walk-in shower conversion removes the bathtub and replaces it with a shower the bather steps — or rolls — into over a low curb or no curb at all. For accessibility, the version that matters is the curbless or low-threshold one, with a seat, a handheld sprayer and grab bars fixed to real blocking in the wall. It is the modification that most reliably restores independent bathing, and it does not require anybody to sit and wait for water.

Triggers

Signs you need walk in shower conversion

The person can bathe safely seated but cannot stand for a whole shower
Stepping over the tub wall is the specific point at which help is needed
A carer currently has to lean over a tub wall to assist, which is hard on their back and unstable for both people
A shower chair or a wheeled shower commode is already in use, or is likely to be soon
The bathroom is being renovated anyway and this is the moment to make the change once
The household wants a bathroom that reads as a bathroom, not as a piece of medical equipment

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The job

How walk in shower conversion actually works

Decide curbless or low-threshold — this is the whole project

A truly curbless, roll-in shower needs the shower floor to sit level with, or slightly below, the bathroom floor while still draining. A low-threshold shower keeps a small upstand and is far less invasive. Which one you need depends on whether a wheelchair or a wheeled shower chair has to roll in.

Watch for: Being quoted a "walk-in shower" that turns out to have a curb the person still cannot step over. Ask explicitly: is this curbless, and if not, how high is the threshold?
Look at the floor structure before anything is promised

Curbless usually means the shower pan has to be recessed into the floor, which means working within the floor joists below. In a house on a concrete slab the options are different again. This is the assessment that determines whether curbless is affordable in your house or not.

Watch for: A curbless price given before anyone has been under the floor or into the room below. On an upper floor with shallow joists, achieving curbless can require framing work that changes the number substantially.
Drainage design

A barrier-free shower has to move water reliably without a curb holding it in, which usually means a linear drain along one edge and a floor pitched carefully toward it. Get this wrong and water tracks out onto the bathroom floor, which is exactly the hazard you were trying to remove.

Watch for: A conventional centre drain in a curbless layout with no explanation of how water is being contained. Ask what stops water leaving the shower area and where it goes.
Waterproofing the wet area

Without a curb, the waterproof membrane has to extend further and be detailed properly at the floor-wall junction and around the drain. This is the invisible part of the job and the part that causes expensive failures years later.

Watch for: Waterproofing described only as "we'll seal it". Ask what system is being used and whether it is a bonded membrane — and get the answer written on the quote.
Blocking in the walls for grab bars and a seat

Grab bars and fold-down seats must fasten into solid backing installed in the wall while it is open. This is the cheapest thing on this list and the one most often skipped, because the walls are only open once.

Watch for: Anyone proposing to fix a grab bar to tile and drywall with anchors after the fact. Have blocking installed everywhere a bar or a seat might ever go — including places nobody needs today — because adding it later means opening the wall again. Load ratings and mounting requirements are set by the product manufacturer and by code; insist your contractor installs to those, and get the manufacturer instructions.
Fixtures chosen for how the person actually bathes

A handheld sprayer on a slide bar so it can be used seated. A thermostatic or anti-scald valve. Controls reachable from the seat, not from standing. A fold-down seat or a bench, positioned so the reach to the controls works.

Watch for: Controls placed at standing height out of habit. Sit in the position the bather will sit in and check they can reach the valve and the sprayer before the plumbing is fixed.
Door, curtain, or nothing

A hinged glass door is often the wrong answer for accessibility: it narrows the opening and can block a carer. A curtain, or an open walk-in screen with no door, keeps the entry clear and lets someone assist from outside.

Watch for: A frameless glass enclosure specified because it looks better in the showroom. It looks better; it is frequently worse to use.

Money

What does walk in shower conversion cost?

Tub-to-shower conversions commonly run between $5,000 and $20,000. Low-threshold conversions sit at the lower end; a truly curbless roll-in shower needing floor structure work sits at the upper end or beyond. Blocking, a seat and a handheld sprayer add little and are the highest-value items on the list.

See the full walk in shower conversion cost guide — by material, size and region →

Straight answer

When walk in shower conversion is the wrong call

Everyone else ranking for this is paid when you say yes. Here's when you shouldn't.

The person genuinely wants to be immersed. If soaking in warm water is what they value — for comfort, for warmth, for pain relief — a shower does not replace it. That is the one case where a walk-in tub is clearly the better purchase, and it is a legitimate one.
It is the only bathtub in the house and the household includes small children. Bathing a toddler in a curbless shower is possible but genuinely awkward, and removing the last tub also affects resale. If there is a second bathroom, convert that one instead.
Curbless is not achievable in this floor and low-threshold will not solve the problem. On some upper floors and some slabs, getting the pan low enough means structural work that costs more than the rest of the project. If the person needs a genuine roll-in and the house cannot give it, that changes the plan — sometimes to a different bathroom, sometimes to a different room entirely.
The bathroom is too small for the person to turn or for a carer to stand. A beautiful curbless shower in a room where a wheelchair cannot turn around has not fixed anything. The size of the room and the swing of its door are part of the assessment, and the honest answer is occasionally "this bathroom is not the one".
The need is short-term. Recovering from a hip replacement with an expected return to normal mobility rarely justifies rebuilding a bathroom. A tub transfer bench, a handheld sprayer and a grab bar properly installed cost a small fraction and can come out afterwards.
You are doing it purely because a salesperson said a walk-in tub was the only option. Neither product is the default. Work out what the person can and cannot do first, then choose — and if anyone is pushing you toward a decision this week, that pressure is about their month, not your parent.

Your options

Types of walk in shower conversion

Walk-in tub vs walk-in shower

The comparison that decides everything downstream — read it before you get quotes.

Accessible bathing problems

Start from the specific difficulty rather than from a product.

Planning an accessible bathroom

How the room, the door and the turning space fit together.

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Before you sign

What to check when hiring for walk in shower conversion

Is this curbless, and if not, exactly how high is the threshold in inches?

The single question the quote must answer numerically. "Low" is not a specification and it is where these projects disappoint.
Have you looked at the floor structure below this bathroom?

Curbless depends on what is under the floor. A price given without that look is a guess that will be revised.
What waterproofing system are you using, and will it be on the quote?

The failure you cannot see for five years. A contractor who names a system and writes it down is a different proposition to one who says "we seal it well".
Will you install solid blocking everywhere a grab bar or seat could go?

It costs almost nothing while the wall is open and it is impossible to add cheaply afterwards. Ask for more of it than you think you need.
Where will the controls and the sprayer be, measured from a seated position?

Reach from the seat is the difference between independent bathing and needing someone in the room. Check it before the plumbing is set.
How does water stay in the shower area without a curb?

A specific answer — linear drain, floor pitch, a screen — means they have designed it. A vague one means water on your bathroom floor.
Are permits and inspection required here, and are you pulling them?

Requirements vary by jurisdiction, and plumbing and structural changes commonly trigger them. A contractor who wants to skip the permit is telling you something.

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Local pros

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Related work

Often done at the same time

Walk-in Tub Installation

The other side of the decision

Wheelchair Accessible Tub Installation

If immersion is wanted and transfer is from a chair

Walk-in Tub Removal

Taking out a tub that did not work out

Tub to Shower Conversion

The same job as a general remodel, when accessibility is not the driver

All walk-in tubs services →

FAQ

Walk in Shower Conversion — questions people ask

Still have a question? Talk to our team →

What is the difference between a walk-in shower and a curbless or roll-in shower?

"Walk-in shower" usually just means a shower with no bathtub and often a small curb. "Curbless" or "roll-in" means there is no upstand at all — the shower floor meets the bathroom floor, so a wheelchair or a wheeled shower chair can go straight in. For accessibility that distinction is the entire project, and it is the thing most often lost between the sales conversation and the finished bathroom. Ask for the threshold height as a number.

Can a curbless shower be done on an upper floor?

Often, but it depends on the joists. Getting the pan low enough usually means recessing it into the floor structure, and how much depth is available varies house to house. Some upper floors allow it easily, some need framing work, and some are better served by a low-threshold shower plus a good ramped entry. This is why a floor inspection should come before a price, not after.

Is a shower conversion cheaper than a walk-in tub?

A low-threshold conversion frequently is. A fully curbless roll-in shower that needs floor structure work can cost the same or more. What tilts the comparison is that the shower has no door seal to replace, no fill-and-drain wait, no significant extra hot water demand, and it keeps working if the person's mobility declines further. Compare on the ten-year picture rather than the invoice.

Will I regret removing the bathtub?

Two honest cases where people do: households with young children, and homes with only one bathroom being sold within a few years, where some buyers do want a tub. If there is a second bathroom with a tub in it, neither concern applies. And if the person living there cannot use the tub they have, an unused tub is not an asset.

What should I insist on even if the budget is tight?

Solid blocking in the walls for grab bars and a seat, a handheld sprayer on a slide bar, an anti-scald or thermostatic valve, and controls reachable from seated. Together these are a small share of the project cost and they are most of the safety benefit. Tile choice, glass and fittings can all be revisited later; blocking cannot.