The quick answer: in 2026, a tub-to-shower conversion typically costs $3,000 to $8,000 for a prefab acrylic or fiberglass unit, and $6,000 to $15,000 for a custom tiled walk-in shower in the same footprint. Going curbless, upgrading to frameless glass, or moving plumbing pushes the number higher.
Why do so many homeowners make this swap? Most adults shower; far fewer bathe. A tub you step over every morning takes up five feet of the room, and for anyone with a bad knee or hip, that 15-inch wall becomes a daily hazard. A walk-in shower is easier to use, easier to clean, and — done well — makes even a small bathroom feel dramatically bigger. This guide walks through the process step by step, the real cost drivers, and the resale question everyone asks.
What a tub-to-shower conversion involves
A conversion sounds simple — pull the tub, drop in a shower — but there's real plumbing and waterproofing work between those two steps. A tub drain and a shower drain aren't the same thing: the drain moves from the end of the alcove toward the center, the trap is usually replaced, and the old tub spout goes away in favor of a shower-only valve. Then the entire wet area has to be waterproofed as carefully as any new shower, because there's no tub below to catch what the walls miss.
Most conversions happen inside the existing 60-by-30-inch tub alcove, which is exactly why they cost so much less than a full remodel: the plumbing wall, the floor outside the wet area, the vanity, and the toilet all stay put.
Tub-to-shower conversion cost in 2026
| Conversion type | Typical cost (2026) | What you get |
|---|---|---|
| Prefab shower kit (acrylic/fiberglass) | $3,000 – $8,000 | One-piece or multi-panel walls over a molded base, framed glass or curtain |
| Custom tiled shower, same footprint | $6,000 – $15,000 | Site-built pan, full waterproofing membrane, tile walls, glass door |
| Curbless (zero-entry) conversion | $8,000 – $18,000 | Floor rebuilt for a flush entry with a linear drain — the accessibility gold standard |
| Conversion with moved plumbing | +$1,500 – $5,000 | Relocating the drain or valve beyond the existing wet wall |
Line items worth knowing on their own: a new pressure-balanced shower valve runs $500–$1,200 installed, a framed glass door $600–$1,200, and a frameless enclosure $1,000–$3,000. Labor is typically 50–60% of a conversion budget because the job is nearly all skilled-trade hours in a small space.
The process, step by step
- Assessment and measurements. A pro checks the subfloor, confirms where the drain and vent run, and looks for signs of past leaks. This is when you choose prefab vs. tile and curb vs. curbless.
- Ordering. Bases, wall kits, tile, and fixtures get ordered before demo so the bathroom is never torn open and waiting. Custom glass is the exception — it's measured after tile.
- Demolition (half a day to a day). The tub, surround, and usually the drywall behind it come out. This is the moment hidden problems appear: soft subfloor, mold, corroded pipes.
- Plumbing rough-in (1 day). The drain is relocated and resized, the trap replaced, and the new shower valve set in the wall. This is the step that usually triggers the permit.
- Pan and waterproofing (1–2 days for tile). A prefab base is set in mortar; a tiled shower gets a sloped pan plus a waterproofing membrane on the walls. Good contractors will name the system they use — that's a quality signal.
- Walls (1 day prefab, 2–4 days tile). Panels are bonded and sealed, or tile is set and grouted with cure time between steps.
- Trim and glass. Fixtures, door or curtain rod, caulk, and a flood test before anyone showers. Custom frameless glass arrives 1–3 weeks after final measurement.
Prefab vs. custom tile: how to choose
This is the single biggest fork in the budget, so it deserves an honest comparison:
| Factor | Prefab kit | Custom tile |
|---|---|---|
| Installed cost | $3,000 – $8,000 | $6,000 – $15,000 |
| Install time | 2–5 days | 1–2 weeks |
| Look and feel | Clean but recognizably molded | Fully custom, designer-grade |
| Maintenance | No grout — wipe and go | Grout needs periodic sealing |
| Leak risk | Low (fewer seams) | Low if waterproofed properly; installer-dependent |
| Resale impression | Neutral | Usually a plus in a primary bath |
A useful middle path: a prefab base with tiled walls. You skip the hardest waterproofing work (the pan) but keep the custom look where eyes actually land.
The resale question: is removing the tub a mistake?
The rule of thumb real-estate agents repeat: keep at least one tub in the house. Families with young children frequently filter for it, and some buyers simply expect one. If you're converting a hall bath and there's no other tub, think twice — or plan to stay long enough that your own comfort outweighs the resale math. In a primary bathroom, the calculus flips: a spacious walk-in shower is what most buyers want to see in 2026, and an unused garden tub is dead space they'll mentally budget to remove.
If this is your only bathroom, there's a second wrinkle: some renovation lenders and appraisers treat a home with no tub as an oddity. It won't sink a sale, but it's worth knowing before you commit.
Think ten years ahead while the wall is open
A conversion is the cheapest moment you'll ever have to build in accessibility, even if you don't need it yet:
- Blocking for grab bars — $100–$300 of lumber inside the open wall. Mount bars now or years from now; either way the anchor points exist.
- A curbless entry adds roughly $1,000–$3,000 during a conversion versus far more as a retrofit, and it reads as modern, not medical.
- A handheld shower head on a slide bar ($150–$400) helps everyone from kids to dog owners.
- A fold-down bench or built-in niche seat is easiest to frame before waterproofing goes on.
If seated bathing itself is the goal — for instance for a parent moving in — a walk-in tub may fit better than a shower; see our walk-in tubs and aging-in-place guide for that comparison.
How long the whole thing takes
Plan on 2–5 days of on-site work for a prefab conversion and 1–2 weeks for custom tile, since mortar beds, membranes, and grout all need cure time. Add ordering lead time up front (one to three weeks for kits and tile) and glass fabrication at the end if you chose frameless. From first phone call to first shower, six weeks is a realistic overall window for a tiled conversion — faster for prefab.
Permits, and why you actually want one
Because the drain moves and a new valve goes in, most cities require a plumbing permit for a conversion. Your contractor should pull it — that's normal and the fee is usually modest. The permit buys you an independent inspection of the plumbing and waterproofing before it's sealed behind tile, which is exactly the work you can't check later. A pro who offers to "save you money" by skipping the permit is telling you how they handle the parts you can't see.
What belongs in a good conversion quote
- Itemized demo, plumbing, waterproofing, walls, and glass — not one lump number
- The waterproofing system named (membrane brand or method) for tiled showers
- Who pulls the permit (should be the contractor) and whether the fee is included
- Specific fixture models or realistic allowances
- Haul-away of the old tub and protection for the rest of the home
- A written workmanship warranty — one year is common, better pros offer more on waterproofing
Prefer to answer a few quick questions instead?
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Start the bathroom quiz →Frequently asked questions
How much does a tub-to-shower conversion cost?
In 2026, a prefab (acrylic or fiberglass) conversion typically costs $3,000–$8,000 installed. A custom tiled walk-in shower in the same footprint runs $6,000–$15,000, and going curbless or moving plumbing pushes it higher.
How long does a tub-to-shower conversion take?
On-site work usually takes 2–5 days for a prefab conversion and 1–2 weeks for custom tile, since mortar, waterproofing, and grout need cure time. Custom glass adds 1–3 weeks of fabrication after the tile is finished.
Does removing a bathtub hurt resale value?
It can if it's the only tub in the house — families with young children often want at least one. The common rule of thumb: keep one tub somewhere in the home and convert the rest freely. In a primary bath, a quality walk-in shower is usually a plus.
Do I need a permit for a tub-to-shower conversion?
Usually yes, because the drain is being changed and a new shower valve is typically installed. Permit rules vary by city, and your contractor should pull the permit — treat a pro who suggests skipping it as a red flag.
Can I convert a tub to a shower myself?
Demo and finish work are DIY-friendly, but the drain relocation, valve replacement, and shower waterproofing are not. A failed shower pan leaks into the framing invisibly, so most homeowners hire a licensed pro for everything between demo and tile.
Costs on this page are national 2026 estimates, rounded for planning purposes. Actual quotes vary by region, home condition, material choices, and contractor — always confirm pricing with a written, itemized quote.
