Tub to Shower Conversion With Proper Waterproofing

Swap a tub you never use for a tub to shower conversion built on a sloped pan and a continuous waterproofing membrane behind the tile.

Local Tub to Shower Conversion Crew

Installer setting floor tile during a tub to shower conversion

Our tub to shower conversion crew works in homes around here regularly, so we know what’s usually behind an older tub. Galvanized drain pipes, rotted subfloor near the valve, and walls that aren’t square are common. Planning for those details keeps the job on schedule. Every conversion is done by our own licensed, bonded, and insured team. We work with homeowners across Riverside and nearby cities.

Shower Conversion Work We Handle

Tub Removal and Drain Move

The tub comes out and the drain is relocated to fit the new shower pan. A tub drain usually sits in the wrong spot and is often too small for a shower.

Waterproofed Shower Pan

We build or set a pan sloped toward the drain, then cover it with a continuous membrane. Standing water on a flat pan is how grout and subfloor rot starts.

Green tiled shower with bench and black-framed glass
Walk-In and Curbless Showers

A low curb or zero threshold makes stepping in easier. Curbless designs need the floor recessed, which we check before promising one.

Tile, Glass, and Fixtures

Wall tile, niches, grab-bar blocking, and a glass panel or door finish the space. The valve is set at the right depth for the finished wall thickness.

Why Homeowners Choose Our Bath Crew

Plumber soldering copper supply lines for a new shower valve
Waterproofing You Can See

We photograph the membrane and flood-test the pan before tile goes on. You see proof it holds water before it's covered.

Grab-Bar Blocking Built In

Solid wood blocking goes in the walls now, even if you don't want grab bars yet. Adding it later means tearing out tile.

Written Scope and Selections

Tile, fixtures, and glass are listed in writing before demo. No guessing about finishes once the tub is out.

In-House Bath Team

Our own crew handles demo, framing, waterproofing, and tile. One lead oversees the whole bathroom.

How Your Shower Conversion Comes Together

01.

Bathroom Measure

We measure the alcove, check the drain location and subfloor, and talk through curb height, glass, and storage niches.

02.

Design and Selections

You choose tile, fixtures, and glass, and we confirm any permit the plumbing change requires.

03.

Demo, Plumbing, Waterproofing

The tub comes out, the drain and valve are moved, and the pan and walls are waterproofed and flood-tested.

04.

Tile, Glass, Final Check

Tile and glass go in, fixtures are set and tested, and we walk the finished shower with you.

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Why a Tub to Shower Conversion Leaks

Loose tiles, dark grout lines, and a soft floor outside the shower usually mean water has gotten behind the tile. Tile and grout are not waterproof on their own. In a rushed bath to shower conversion, the new pan may be set without enough slope, or the drain from the old tub is reused. Water then sits, soaks through grout, and reaches the subfloor. The fix is a correctly sized shower drain, a pan sloped toward it, and a continuous waterproofing membrane on the floor and walls. Planning guidelines from the National Kitchen & Bath Association cover this, and our bathroom remodeling team follows the same waterproofing steps.

Installer applying liquid waterproofing membrane to shower walls

Walk-In Tub to Shower Conversion Done Right

The best tub to shower conversion is one you never have to think about again. That comes down to steps hidden behind the tile. We flood-test every shower pan before tiling and photograph the membrane for your records. The valve is set to the finished wall depth, so trim plates sit flush. Blocking for grab bars goes in while the walls are open. Shower remodel contractors who skip these steps leave problems that show up months later. If the kitchen is next on your list, our kitchen remodeling crew uses the same standards. Call for a free estimate.

Finished walk-in shower with green tile and glass screen

Shower Conversion FAQs

Answers to common questions about tub to shower conversion. Call Flawless Construction Inc to schedule a bathroom measure.

How much does a tub to shower conversion cost?

The biggest cost drivers are the pan, the tile, and the glass. A prefabricated shower base costs less than a custom tiled pan, but it limits size and drain location. Tile choice varies widely, and large or intricate patterns take more labor. Frameless glass costs more than a framed door or a curtain. Hidden conditions matter too. Rotted subfloor, old galvanized drains, or a valve that needs replacing all add work once the tub is out. We give you an itemized estimate after measuring the bathroom, so you can adjust finishes and see how each choice changes the total.

Most of the time goes into steps you can’t rush. Demolition and drain relocation are fairly quick. Waterproofing needs curing time, and a proper flood test holds water in the pan before tile goes on. Tile setting and grout curing come next, then glass, which is usually measured after tile and made to order. That wait for glass is often the longest single delay. If a permit is required for the plumbing changes, inspections add scheduling time too. We give you a written schedule before demo and let you know right away if anything shifts, such as a delayed glass delivery.

It can matter, depending on your home and likely buyers. Families with young children often look for at least one tub in the house. With a second bathroom that has a tub, converting the other one rarely causes a problem. If this is your only tub, it’s worth weighing how long you plan to stay and who you’d likely sell to. Many owners, especially those planning to age in place, decide a safer walk-in shower matters more. We don’t make that call for you, but we’re happy to talk it through honestly during the bathroom measure.

Often, but it depends on your floor. A curbless shower needs the shower floor to sit lower than the bathroom floor, so water drains without a lip to hold it. On a slab, that may mean cutting and recessing the concrete. With a raised wood floor, joists may need to be lowered or reinforced. Linear drains help, since they allow a single slope across the shower. We check your floor structure during the measure before promising a zero-threshold design. If a fully curbless shower isn’t practical, a low curb still makes stepping in much easier.

It depends on what changes. Moving a drain, relocating a valve, or altering walls often requires a permit, while a like-for-like fixture swap may not. Rules vary by city, so we check your local requirements before work begins. When a permit is needed, we pull it and schedule the inspections. Skipping a required permit can cause trouble when you sell or file an insurance claim later. A permitted job also means an inspector has looked at the plumbing before it’s covered. Either way, you’ll know the answer before demo starts.

We use a continuous waterproofing membrane on the shower floor and walls, either a sheet membrane or a liquid-applied one, depending on the design. Both create a watertight layer behind the tile. Seams, corners, niches, and pipe penetrations get extra attention, since those are where leaks start. Cement board alone isn’t waterproof, which is a common misunderstanding. Once the pan is done, we flood-test it by filling it with water and checking for any drop. You get photos of the membrane before tile covers it. That record helps if you ever need to show how the shower was built.

Yes. Even if you don’t want grab bars today, we install solid wood blocking in the walls during framing so bars can be mounted later without opening tile. Grab bars must anchor into blocking or studs, since drywall and tile can’t hold a person’s weight. Built-in benches are framed and fully waterproofed as part of the shower. A fold-down bench is another option for smaller spaces. We plan bar heights and bench placement around how you actually use the shower. These details matter most for anyone planning to stay in the home long term.

Yes. Demolition, framing, waterproofing, and tile work are done by Flawless employees who are licensed, bonded, insured, and background-checked. One lead oversees your bathroom from demo to final walkthrough. Specialty items, such as custom glass fabrication, come from an outside supplier, and we coordinate the measure and install. Keeping the core crew in-house means the people waterproofing your shower are the same ones setting tile over it. That continuity matters, since a mistake at the membrane stage can’t be seen once tile is on. You call one company for anything that comes up afterward.

We handle tub to shower conversions for homeowners in Riverside and nearby cities, including Corona, Moreno Valley, and San Bernardino, and we also work in Woodland Hills. Permit rules for plumbing changes vary from city to city, and we check your local requirements before quoting. If your home is outside these areas, call anyway. We’ll tell you honestly whether we can take on the job or point you toward someone closer. Bathroom projects are easier to plan once we’ve seen the space, so a quick measure is the best first step.

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