Tub-to-shower conversion Swap the tub for a shower
A tub-to-shower conversion removes a bathtub and builds a shower in the same space, usually the same alcove. It looks simple, but the drain, the valve and the waterproofing all change. What matters most is that the shower floor slopes to a properly sized drain and is waterproofed as one continuous system. Call 804-566-7669.
How it works
- Call 804-566-7669Your call connects to an independent contractor in your area.
- Talk it throughSay what you want done, the age of the house and when you hope to start.
- Get it in writingScope, schedule and price on paper before any work starts. Then you decide.
1What tub-to-shower conversion involves
The job starts with removing the tub, which often means cutting out the bottom rows of wall tile or the tub surround. A tub drain is usually smaller than what most codes require for a shower, so the drain line under the floor is often enlarged and a new shower drain set where the base needs it. The tub spout goes away, and the valve is usually replaced or updated, since many codes call for a pressure-balancing or thermostatic valve that limits scalding.
For the shower floor you have three main paths. A prefabricated base made of acrylic, fiberglass or solid surface is quick and forgiving. A tiled floor can be built on a traditional mortar bed over a waterproof liner, or on a foam tray system with a bonded membrane. Tiled floors give more size and design options, but they depend on careful slope and sealing. Walls are then covered with a waterproof membrane before tile, or with panels.
Most conversions fit the old tub footprint, roughly five feet wide, which leaves room for a bench or a large niche. You also decide on the entry: a low curb, a glass door, a fixed panel, or a curtain. If this is the only tub in the home, think about whether you or a future buyer may want one, since some households with small children prefer a tub. For the drain and valve work, the plumbing guide covers what to expect.
How the work usually goes
- Demolition and inspectionThe tub and lower wall surface come out, and the subfloor and studs are checked for rot or water damage around the old drain.
- Plumbing rough-inThe drain is resized and repositioned as needed, the valve is replaced or adapted, and the showerhead height is set. An inspection may follow.
- Shower base or panA prefab base is set level, or a sloped tile floor is built with a liner or membrane and often flood tested before tile.
- Wall waterproofingBacker board and a waterproof membrane, or a panel system, are installed with seams, corners and pipe penetrations sealed.
- Tile or panelsTile is set, grouted and caulked at corners, or panels are installed and sealed at the base and edges.
- Trim, glass and finishValve trim, showerhead and drain cover go on, then the glass door or panel is measured and installed once tile is done.
2What decides it
Ready to turn your tub into a shower?
3Common mistakes
- Reusing the tub drain as isA tub drain is often smaller than what a shower requires and sits in the wrong spot. Plan to resize and reposition it so the shower drains fast and meets code.
- Keeping the old tub valve without checking itOlder valves may not limit scalding or match new trim. Ask whether the valve should be replaced while the wall is open, since doing it later means cutting tile.
- Skipping waterproofing where the tub used to beThe area below the old tub rim was never meant to get wet. The new shower needs waterproofing all the way down to the base, tied into it.
- Ordering glass too earlyShower glass is measured from finished tile. Ordering from rough measurements often leads to gaps or a door that does not fit.
4When to call a pro
Ready to turn your tub into a shower?
Talk to a local contractor about it today.
5Questions
What happens when I call?
Your call to 804-566-7669 connects to an independent local contractor. Describe the project, ask your questions, and decide whether you want a quote. Calling does not commit you to anything. iLikeToFix earns a referral fee when a call connects; here is how that works.
How long does a tub-to-shower conversion take?
A conversion with a prefab base and wall panels can often be finished in about a week. A fully tiled shower usually takes two to three weeks, because the pan, waterproofing, tile and grout each need time, and glass is measured only after tile is done. Inspections and repairs to rotted subfloor can add days.
Does removing the only tub hurt resale value?
It can matter to some buyers, especially families with young children, but many buyers prefer a large walk-in shower in a primary bathroom. If your home has another tub, removing one is rarely a concern. If it is the only tub, it is worth thinking about who is likely to buy your home and asking a local real estate professional for their view.
Can I keep the same faucet valve?
Sometimes. If the valve already limits scalding, is in good condition and works with the trim you want, it may be reused and the tub spout outlet capped. Many older valves do not meet current expectations, though, and replacing one later means cutting into new tile. Most contractors check the valve while the wall is open.
What size shower fits where a tub was?
Most alcove tubs are about five feet long and around 30 to 32 inches deep, so the shower usually takes that footprint. That is larger than the minimum size most codes allow and leaves room for a bench, a niche or a wider door. Depth can sometimes grow if the wall behind the tub is moved, which adds framing work.
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