Tub-to-Shower Conversion Cost in Topeka: What to Expect (2026)

Why the Price Range You Found Online Is So Wide

Search what a tub-to-shower conversion costs and the numbers make no sense. Home Depot's cost guide puts a wet-area conversion at $8,000 to $15,000. Modernize reports an average closer to $3,000. Ads on the same page promise the whole thing for under $2,000.

None of them are lying. They are quoting three different projects that happen to share a name.

I am Ryan Felix, and I own Kingdom Builders Co. here in Topeka. When a homeowner calls me about getting rid of their tub, the first thing I do is figure out which of these three jobs they actually want, because that single answer moves the price by a factor of ten. Here is the breakdown, so you can walk into any quote knowing what you are being sold.

The Three Kinds of Tub-to-Shower Conversion

1. The tub cut, roughly $1,000 to $2,500

A technician cuts a step-through notch into the side of your existing tub and caps the opening with a molded insert. The tub stays. The plumbing never moves. The tile never comes off the wall.

This is a mobility fix, not a remodel. It takes a day and it works well for exactly one problem: someone in the house can no longer swing a leg over a 15-inch tub wall. What you end up with still looks like a bathtub with a piece cut out of it, because that is what it is. If your goal is a bathroom that feels new, this is not it.

2. The acrylic liner system, roughly $4,000 to $9,000

This is what the one-day bath companies sell. The old tub comes out, a molded acrylic or fiberglass shower pan goes in, and acrylic wall panels get installed over the existing wall surface. Everything is a manufactured kit sized to the standard 60-inch tub alcove.

It is fast, usually one to three days, and it is genuinely watertight. The tradeoffs are real, though. You are locked into the manufacturer's sizes, colors, and shelf placement. Because the panels go over what is already there, nobody sees the wall behind them, so if there is water damage in the framing it stays there. And these systems have a service life. Acrylic scratches, and the caulk seams at the panel joints need attention every few years.

3. The tiled rebuild, roughly $8,000 to $18,000

This is the one the Home Depot number describes. The tub comes out, the walls come down to the studs, and we rebuild the shower from the framing forward: waterproofing membrane, mortar bed or a sloped foam pan, tile, glass, and new valve and trim.

It costs the most and it takes the longest, usually two to three weeks. It is also the only version where the wall cavity gets opened, inspected, and properly waterproofed, and the only one where the shower can be any size or shape you want. A curbless entry, a bench, a niche where you actually keep your shampoo, tile that matches the rest of the room. If you are staying in the house, this is the one that stops being a project you think about.

When you compare quotes, this is the comparison that matters. A $4,500 quote and a $12,000 quote are not the same job at two prices. Ask which of these three you are being sold before you compare anything else. For the whole-room budget around that shower, read bathroom remodel cost in Topeka. See what a full walk-in shower installation involves if you want the detail.

What Actually Moves the Price

Inside any of those three ranges, five things decide where your project lands.

• Whether the drain moves. A tub drain sits at one end of the alcove. A shower drain usually wants to be centered. Moving it means opening the floor and cutting into the joists, and how much that costs depends entirely on which direction your joists run relative to the drain. If they run the wrong way, a plumber is working in a very tight space for a long time. This is the single biggest hidden variable in the whole job.
• Tile size and pattern. Large-format tile goes up faster than mosaic. A herringbone or chevron layout costs more in labor than a straight stack, because every cut is a compound cut. Floor tile in a curbless shower needs more cuts than a standard pan, since it has to slope to the drain from every direction.
• Glass. A shower curtain costs nothing. A framed sliding door runs a few hundred. Custom frameless glass is measured after the tile is set, fabricated to your opening, and it is usually the second most expensive line on the invoice after labor.
• The valve. If you are keeping the existing valve body and only changing the trim, you save real money. A thermostatic valve, a rain head, or body sprays all mean new supply lines and often a bigger valve body, which means opening the wall on the other side too.
• What we find when the wall comes off. More on this below, because in Topeka it comes up constantly.

What We Run Into in Older Topeka Homes

A lot of the housing stock here in Topeka and across Shawnee County went up between the 1920s and the 1960s, and those bathrooms have some consistent surprises. This is where a national cost guide stops being useful to you.

Cast iron tubs. Homes from that era usually have one, and they weigh 300 to 500 pounds. They do not come out through a standard bathroom door in one piece. We break them up in place with a sledge and haul them out in sections, which is loud, slow, and adds labor and disposal that a fiberglass tub would not.

Galvanized supply lines. If your house still has galvanized steel supply piping, it has been closing itself off with corrosion for decades. Once we open the wall, replacing that run to copper or PEX is worth doing while it is accessible. It is not what you called about, but doing it later means opening the same wall twice.

Old waterproofing, or none. Before modern membranes, the standard was tar paper and wire lath, or sometimes just greenboard. When we take a 60-year-old tub surround off, soft framing behind it is common rather than rare. It is not a disaster and it is not expensive to fix while the wall is open, but it is the reason I will not give a firm number over the phone.

Plaster instead of drywall. Plaster over wood lath does not cut cleanly and it does not patch like drywall. The transition where the new tile meets the old plaster wall takes extra work to come out flat.

None of this is a reason to avoid the project. It is the reason your quote should include an allowance for what is behind the wall, and why a contractor who promises an exact price without seeing your bathroom is guessing.

Does Medicare Pay for a Tub-to-Shower Conversion?

This question comes up in almost every conversation with a family doing this for an aging parent, so it deserves a straight answer.

Original Medicare, Parts A and B, does not cover home modifications. A shower conversion is classified as a home improvement rather than durable medical equipment, so it falls outside what Original Medicare pays for. Grab bars have the same problem, which surprises people.

There are other doors worth knocking on, and you should check each one against your own situation rather than take my word for it:

• Medicare Advantage, Part C. Some plans have added home safety and bathroom modification benefits. Coverage varies by plan and by year, so call the number on your card and ask specifically about bathroom safety modifications.
• Veterans benefits. The VA offers grants for home modifications tied to service-connected conditions. Start at VA.gov or with a VA social worker.
• Medicaid home and community-based services waivers. These are administered state by state and some cover accessibility modifications. In Kansas, start with your local Area Agency on Aging.
• Your doctor. A written recommendation does not by itself create coverage, but most programs that do cover modifications want one on file.

Verify coverage before you sign a contract, not after. I have watched families assume it was covered, commit to the work, and find out otherwise.

Should You Remove Your Only Bathtub?

If the tub you are converting is the last one in the house, stop and think about this before you commit.

Real estate agents will generally tell you a home with no bathtub at all is harder to sell to families with small children, and that is a real segment of the Topeka market. It is not a rule and it does not apply to everyone. If you are 70 and staying put, your daily safety matters more than a hypothetical buyer in fifteen years, and I will tell you that directly.

But if you have a second full bath, convert the primary one and leave the tub in the other. You get the shower you want and you keep the tub the market expects. That is usually the easy answer, and it is worth checking before the demo starts. If the second bathroom needs work too, a full bathroom remodel in Topeka done at the same time costs less than two separate mobilizations.

How to Read the Quotes You Get

Get three, and read past the total. A quote that is worth trusting tells you:

• Which of the three project types it is. Tub cut, liner system, or tiled rebuild.
• Whether the drain is being moved, and what happens to the price if the joists do not cooperate.
• What the waterproofing is. A brand name and a system, not the word waterproof.
• Who pulls the permit. Moving plumbing in Topeka means a permit and an inspection. If a contractor tells you no permit is needed for a drain relocation, that tells you something.
• An allowance for concealed conditions, with a stated dollar figure and how change orders get priced.
• The tile and glass allowance, in dollars per square foot, so you know what happens when you pick something you like better.

Be careful with a quote that is dramatically lower than the other two. It is usually either a different project type or an allowance set so low that the change orders are already planned.

What This Looks Like With Us

Kingdom Builders Co. is owner-operated, which means I am on your job, not a salesperson you meet once. We handle the demo, plumbing coordination, waterproofing, tile, and glass under one contract, so there is one person accountable when something needs a decision.

We do not sell a one-day system. We build tiled showers, and we are honest that they take two to three weeks and cost more than an acrylic kit. If a liner system is genuinely the right call for your budget and timeline, I will tell you that too.

We work throughout Topeka and Shawnee County, we are fully insured, and we have a 5.0 rating across 31 five-star reviews on Google. Bathroom work is also what we do most of in the winter, when nobody is thinking about decks.

The only way to get a real number for your bathroom is for someone to look at it: the tub, the drain location, the joist direction, and what the walls are made of. That visit is free and there is no obligation attached to it. Request a free estimate or call (785) 329-4551.

Frequently Asked Questions

What is the average cost to convert a bathtub to a shower?

Published averages land around $3,000 to $5,000 nationally, but the average is not very useful because it blends three different projects. A tub cut runs roughly $1,000 to $2,500, an acrylic liner system roughly $4,000 to $9,000, and a fully tiled rebuild roughly $8,000 to $18,000. Figure out which one you want first, then compare.

How long does a tub-to-shower conversion take?

A tub cut is a single day. An acrylic liner system is typically one to three days. A tiled rebuild runs two to three weeks, because waterproofing, mortar, thinset, and grout each need curing time that cannot be rushed without causing failures later.

Do I need a permit in Topeka?

If the plumbing is being moved, yes, and that includes relocating the drain. If you are only replacing fixtures in place, usually not. We pull the permits on our projects and schedule the inspections.

Can you convert a tub to a shower in one day?

A tub cut or an acrylic liner system, yes. A tiled shower, no, and any company promising a tiled shower in a day is not letting the waterproofing and mortar cure. That is how you end up with a leak inside the wall two years later.

Is a curbless shower more expensive?

Yes, usually a few thousand more, because the floor framing has to be recessed so the shower pan can sit flush with the bathroom floor and still slope to the drain. In a house on a crawlspace or basement that is workable. On a slab it is a bigger job. It is the best option for wheelchair access and it looks the cleanest, so it is often worth the difference if you are staying in the home.

Will removing my bathtub hurt my home value?

Only if it was the last tub in the house. Agents generally advise keeping at least one bathtub for buyers with young children. If you have a second full bathroom with a tub, converting the primary shower is not a resale concern.