Tub to Shower Conversion Cost (2026)

The tub to shower conversion cost in 2026 ranges from about $3,000 to $15,000, with most homeowners paying $5,000 to $10,000 for a complete job. A budget conversion using a prefabricated shower kit on the existing plumbing can land near $3,000 to $6,000, while a custom tiled walk-in shower with a new drain location, glass enclosure, and upgraded valve runs $9,000 to $15,000 or more. The plumbing work is a major part of the bill, typically $1,500 to $5,000, because the drain almost always moves and the valve usually gets replaced. Your choice of shower type and whether the drain stays put are the two decisions that matter most.

Average Tub to Shower Conversion Cost

A basic conversion that keeps the existing drain and valve locations and uses an acrylic or fiberglass shower kit costs $3,000 to $6,000 installed. That includes removing the old tub, patching the walls, installing the new shower base and surround, and connecting the new drain and valve. A mid-range conversion with a tiled shower, a frameless glass panel, and a new pressure-balancing valve typically costs $7,000 to $11,000. A high-end conversion with a curbless entry, linear drain, thermostatic valve, and custom tile runs $12,000 to $15,000 or more.

Labor is the largest single cost, usually $2,000 to $5,000 of the total, because the job involves demolition, plumbing, waterproofing, tile, and glass work. Material costs vary just as widely: a prefab kit costs $800 to $2,500, while custom tile, a glass enclosure, and a quality valve can total $3,000 to $7,000 before labor. Regional prices matter too; the same conversion costs 20 to 40 percent more in high-cost coastal metros than in the Midwest or South.

Conversion Cost Breakdown

Breaking the job into line items makes quotes easier to compare. Demolition and tub removal usually costs $300 to $800, including hauling the old tub away. Plumbing work runs $1,500 to $5,000 depending on how far the drain moves. Waterproofing and the shower base cost $500 to $2,000. Tile or wall panels run $1,000 to $4,000 installed, and a glass door or panel adds $800 to $2,500. Fixtures, including the valve, showerhead, and trim, add $300 to $1,500.

One cost that catches homeowners by surprise is floor repair. Removing a tub often reveals water damage in the subfloor beneath it, especially in homes older than 20 years. Replacing a section of rotted subfloor adds $300 to $1,200. Wall repair is similar: the drywall behind an old tub surround is frequently damp or moldy, and replacing it adds $200 to $800. A good contractor will budget a contingency for these discoveries rather than quoting a suspiciously low fixed price.

Prefab Kit vs. Custom Tile Shower

Prefab shower kits are the fastest and cheapest option. The base and wall panels arrive as molded acrylic or fiberglass pieces that fit into the old tub footprint, usually 60 inches wide. Installation takes two to four days, the surfaces are grout-free and easy to clean, and the total cost stays in the $3,000 to $6,000 range. The downside is a limited choice of sizes and styles, and a look that buyers can recognize as a budget remodel. Kits also hide the wall condition behind them, so any hidden rot stays hidden unless the installer inspects first.

A custom tiled shower costs more and takes longer, usually two to four weeks, but it offers any size, shape, and finish, from subway tile to large-format porcelain. Tile showers also allow a curbless entry and a linear drain, which kits cannot match. The trade-off is maintenance: grout needs sealing and periodic cleaning, and a poorly waterproofed tile shower can leak. If you choose tile, insist on a full waterproofing membrane behind it and a flood test of the pan before tile goes up. For a full bathroom budget context, see our bathroom plumbing remodel cost guide.

Plumbing Changes in a Conversion

The drain is the main plumbing change. A tub drain sits near the center of the tub footprint, while a shower drain is usually centered in the shower area or at one end, so the drain pipe almost always moves at least a few inches. On a wood subfloor, moving the drain costs $800 to $2,500. On a concrete slab, it costs $1,500 to $4,000 because the concrete must be cut and patched. The old tub overflow connection gets capped, and the new drain gets a fresh trap and a connection to the waste line.

The shower valve is usually replaced at the same time. Old tub-and-shower valves often lack modern scald protection, and the valve height for a tub filler is lower than the standard shower valve height of 38 to 48 inches. A new pressure-balancing valve costs $250 to $600 installed with trim, and a thermostatic valve costs $500 to $1,200. The supply lines are often replaced too, especially if the home has galvanized steel or polybutylene pipe. For more on valve pricing, see our shower valve replacement cost guide, and for the plumbing-only view of this kind of project, see shower remodel plumbing cost.

Drainage slope and venting need checking as well. A shower drain needs a quarter inch of slope per foot toward the waste line, and it needs a vent within a few feet to drain properly. If the existing tub vent is too far from the new drain location, the plumber may need to add a vent, which adds $300 to $800. A conversion that drains slowly or gurgles almost always has a vent or slope problem, and fixing it after the tile is set is far more expensive than fixing it during the rough-in.

Factors That Raise the Price

Drain relocation distance is the biggest factor. A drain that moves six inches on a wood floor is a modest job; a drain that moves three feet across a concrete slab is a major one. The shower size matters too: widening the shower beyond the old tub footprint means moving walls and plumbing, which can add $1,000 to $3,000. Accessibility features such as a curbless entry, grab bars, and a built-in bench add $500 to $2,000 but are worth it for aging-in-place plans.

Home age and condition are the wild cards. Cast iron drain lines in pre-1980 homes may be corroded and need replacement once exposed, adding $1,000 to $3,000. Water damage under the old tub is common and adds $300 to $1,200 for subfloor repair. Tile choice also swings the total: basic ceramic tile costs $5 to $15 per square foot installed, while natural stone or large-format porcelain runs $20 to $40 per square foot. Finally, glass is a quiet budget item; a frameless glass panel costs $1,200 to $2,500, roughly double a framed door or a shower curtain setup.

DIY vs. Professional Conversion

A confident DIYer can remove the old tub, install a prefab kit, and handle the finish trim, potentially saving $1,500 to $3,000 in labor. The plumbing rough-in and waterproofing, however, are jobs where mistakes are expensive. A drain with the wrong slope will pool water, a valve installed at the wrong depth will not accept its trim, and a missed waterproofing step can rot the subfloor within a year. Most homeowners are best served by hiring a plumber for the rough-in and a tile installer for the waterproofing and tile, even if they handle demolition and painting themselves.

If you hire a contractor, get three written quotes that itemize demolition, plumbing, waterproofing, tile, glass, and fixtures separately. Ask whether the price includes the permit, the flood test, and hauling the old tub away. Check that the contractor is licensed and insured, and ask for photos of recent conversions rather than general bathroom work. A contractor who specializes in tub-to-shower conversions will have a standard process for drain relocation and waterproofing, and that experience shows in the finished shower.

Resale Value and Practical Considerations

A tub-to-shower conversion usually returns 60 to 70 percent of its cost at resale, which is in line with most bathroom remodels. It can help a home sell faster in markets where buyers prefer showers, especially in primary bathrooms used by adults. But removing the only bathtub in a home can hurt resale for families with small children, who often want at least one tub. Real estate agents generally advise keeping at least one bathtub in the house. If the home has two or more full bathrooms, converting one tub to a shower is a safe bet; if it has only one, think twice.

Accessibility is the strongest practical case for a conversion. A walk-in shower with a low or curbless threshold is far easier to use than a tub for older adults and anyone with mobility issues. A built-in bench, grab bars, and a handheld showerhead make the shower safer still. These features cost $500 to $2,000 extra but can keep someone in their home for years longer. If accessibility is the goal, design the shower at least 36 by 36 inches and choose slip-resistant tile for the floor.

Timeline and Hiring

A prefab kit conversion takes two to four days from demolition to finished shower. A custom tiled conversion takes two to four weeks, with most of the time spent on waterproofing, tile setting, curing, and glass fabrication. The plumbing rough-in takes one to two days, and the finish work takes half a day after tile is complete. Most jurisdictions require a plumbing permit when the drain moves, and a rough-in inspection before the walls close, so allow one to two weeks for permit approval in busy areas.

When hiring, verify licensing and insurance, and ask the contractor how many tub-to-shower conversions they completed in the last year. Ask specifically about their waterproofing method and whether they flood-test the shower pan. Get the payment schedule in writing, with a deposit of no more than a third up front and the balance tied to milestones. Browse the shower and tub hub for related cost guides, or compare with bathtub installation cost if you are weighing keeping a tub. To get a firm quote for your conversion, call a local plumber at (877) 762-1902.