Replace a Bathtub With a Shower: Costs, Planning, and Step-by-Step Installation

Replacing a bathtub with a shower sits at the top of many remodeling lists, and for good reason. A shower takes up less floor space, which frees the bathroom for storage, a larger vanity, or simply more room to move. Where a tub was once seen as the standard for a full-featured bathroom, today’s market often values a walk-in shower for its quick convenience and easier access for aging users. The project is demanding, two days to a full week for an experienced crew, and it typically costs $1,200 to $3,600, but it often pays for itself in daily use and resale appeal. Wall finish choices shape both the look and the waterproofing: grout-free engineered stone shower panels eliminate the grout lines that trap soap scum and simplify waterproofing for solid-surface shower systems.

Why Homeowners Make the Switch

The biggest driver is space. A standard bathtub swallows roughly 30 by 60 inches of floor, while a shower footprint can be half that, and the reclaimed area changes how the room feels and what it can hold. The second driver is accessibility. Most bathtub aprons stand at least 30 inches high, a real barrier for anyone with limited mobility, and a curbless or low-curb shower removes the step entirely. The age-in-place movement, which stresses barrier-free living, has pushed tub-to-shower conversions to the top of the list for older homeowners.

Space and Storage Gains

Removing the tub opens the wall and floor for a linen tower, a double vanity, or a wider passage. In small bathrooms, the conversion can make a room that felt cramped feel open, and a walk-in entry is easier to clean than a tub surround.

Resale Value and Buyer Appeal

Buyers consistently rate a clean, modern shower above an aging tub, particularly in homes marketed to empty-nesters and retirees. The project does not always return dollar for dollar, but it shortens time on market, and an accessible bath widens the pool of interested buyers.

Age-in-Place Features

A conversion planned for aging in place adds a low or zero threshold, a built-in bench, grab bars in the wet area, and a handheld sprayer. These features cost little during a remodel and are expensive to add later, so they belong in the plan from the start.

Before committing, run the numbers: the tub to shower conversion costs, options, and smart planning that shape most budgets, from the price of a kit to the labor for a custom tile job, deserve a close look.

Project Scope, Cost, and Timeline

A full conversion touches plumbing, framing, waterproofing, and finish. The work usually runs two days for a straightforward kit install to a full week when walls are moved or plumbing is rerouted. The skill level is advanced, and most homeowners hire out at least the plumbing and waterproofing.

Cost Breakdown

The $1,200 to $3,600 range depends on the finish, the fixtures, and local labor rates. The table below gives typical figures for the main line items.

Line itemTypical costNotes
Demolition and disposal$300 to $500Remove tub, surround, and old fixtures
Plumbing changes$500 to $1,000Move drain, valve, and supply lines
Shower pan or kit$200 to $1,500Acrylic pans cost less than tile or stone
Wall surround$300 to $1,200Panels, tile, or engineered stone
Fixtures and trim$200 to $800Valve, head, drain, and handles
Labor and permits$500 to $1,500Varies widely by region

Two-Day vs. One-Week Timelines

Kit conversions, where a one-piece or three-piece surround replaces the tub, move fast because the pan and walls arrive prefinished. Custom tile and stone showers run longer because the substrate, waterproofing, and tile each need curing time. Plan the bathroom schedule around the slowest step, usually the waterproofing and tile.

For the fastest route, compare the best tub to shower conversion kits on the market: most package a pan, walls, and sometimes a valve in one order, which trims both cost and lead time. Whatever route you pick, get three written bids and compare the scope line by line. The lowest number often hides a thinner waterproofing detail or a cheaper valve, and both are expensive to fix after the walls close.

Before You Begin: Alternatives and Prep

A full removal-and-replacement is a major project, and not every homeowner needs it. Two lighter alternatives solve many of the same problems, and both are worth weighing before demolition starts.

Adding a Showerhead to an Existing Tub

If the tub stays, a showerhead can be added to the existing alcove without removing the tub. The process usually involves opening the wet wall where the plumbing runs, replacing the tub filler with a diverter valve and shower arm, and finishing the wall around the new pipe. It is still an advanced job, but it avoids demolition and disposal entirely.

For a period bathroom, installing a shower system on a freestanding clawfoot tub keeps the tub as the centerpiece while adding a working shower behind a curtain or glass panel.

Permits, Rough-In, and Measurements

Most jurisdictions require a permit for plumbing changes, and the inspector will want to see the new drain and vent before the walls close. Measure the shower footprint against the old tub bay: most conversions reuse the 60-inch tub space, which fits a 36-by-36-inch shower with room left for a bench or storage. Mark the valve height, usually 42 to 48 inches off the floor, and the head height, around 72 to 78 inches, before rough-in.

Step-by-Step Removal and Installation

Work in a logical order and protect the rest of the house. The sequence below covers a standard conversion; adapt it to your kit or tile system.

  1. Shut off the water supply and confirm the shutoff valves hold
  2. Remove the fixtures, handles, and tub spout, then cut away the surround or tile
  3. Disconnect the drain, overflow, and supply lines at the tub
  4. Cut the tub into manageable sections with a reciprocating saw, then remove it
  5. Inspect the exposed framing for rot or damage and repair before closing the wall
  6. Install the shower pan, set it level, and connect the drain
  7. Hang the waterproofing membrane or panels on the wet walls
  8. Install the valve, riser, and showerhead, then finish the surround
  9. Seal all joints, let everything cure, and run a full water test

Demolition Tips

Cut the tub into sections to keep it manageable, and protect the floor with plywood or rosin paper. Cast iron tubs are extremely heavy and are best broken up and hauled by a crew. Watch for live wiring behind the walls, and cap any abandoned electrical rather than burying it.

DIY vs. Hiring a Pro

The line between DIY and professional work falls at the wet areas. Most capable homeowners can handle demolition, the pan install, and the finish, but the drain connection, valve rough-in, and waterproofing are the places to pay for experience. A leak that reaches the floor joists costs more than the labor you saved.

Waterproofing the Wet Wall

The wall behind the shower must stop moisture before it reaches the framing. Cement board with a liquid membrane, foam backer board, or a prefabricated panel system all work, and the seams, corners, and valve penetrations are where failures start. Take the waterproofing up at least six feet on the shower walls and overlap the pan flange so water always runs to the drain.

While the walls are open, test every fitting. A drip that shows up now costs minutes to fix; the same leak behind finished tile requires the kind of work covered in guides to fixing a leaking shower head and dripping fixtures.

Choosing a Pan, Walls, and Fixtures

Three finish decisions, the pan, the walls, and the fixtures, drive the look, the maintenance, and most of the budget. Match the choices to how the shower will be used and who will use it.

Pan Materials Compared

  • Acrylic and fiberglass pans: affordable, seamless, easy to clean, flexible underfoot
  • Tile pans with a liner: fully custom and durable, but slower and pricier
  • Solid surface and engineered stone: seamless, grout-free, premium look and feel
  • Stone and concrete: distinctive but heavy, and they need a strong subfloor

Panels and solid-surface systems have narrowed the gap between kits and custom work. Grout-free panels install in a day and wipe clean without the scrubbing that grout lines demand, which is why they dominate quick conversions.

The full tub to shower conversion step-by-step planning sequence, from measuring the bay to ordering materials and booking trades, is worth following before you buy anything, because the order of work determines what needs to arrive first.

Finishing Touches and Post-Installation Checks

The last day of the project decides how the shower performs for the next decade. Caulk every change of plane, let the sealant cure fully before the first use, and test the shower before the bathroom goes back together.

Sealing and Caulking

Use a mildew-resistant silicone at the pan-to-wall joint, around the valve, and along the door or curtain rod. Smooth the bead with a wet finger and tool it into the corners rather than leaving a thick wad. Replace the caulk every few years, when it starts to discolor or lift.

The First Water Test

Run the shower for several minutes with the drain plugged to check the pan for leaks, then unplug and watch the drain flow. Check the valve for drips at the handle and the head for even spray. Adjust the anti-scald setting on the valve so the water temperature tops out at a safe level.

A new valve and head complete the upgrade, and high pressure shower heads improve water flow and shower performance without raising the hot water bill, since they mix air with the stream. Pair the head with a pressure-balanced valve, and the converted bathroom delivers the quick, accessible shower that started the project.