Tub-to-Shower Conversion Cost in San Antonio: What to Expect (2026)

If you are tired of stepping over a tub wall every morning, a tub-to-shower conversion is one of the most satisfying upgrades you can make to a San Antonio bathroom. It opens up the room, modernizes the look, and makes daily use safer and easier. Before you book, though, you want to know three things: what it costs, how the process works, and how long it takes. This guide answers all three for San Antonio homes.

The short answer

A tub-to-shower conversion in San Antonio typically costs $5,000 to $12,000 for a custom tiled walk-in shower built in the tub’s existing footprint. Fast one-day acrylic systems can run $4,000 to $12,000, but they trade tile and design freedom for speed. A custom conversion usually takes a few days to about two weeks depending on scope, while a one-day acrylic swap is completed in a day or two. The right choice depends on whether you want a quick surface upgrade or a fully custom shower built to last.

One-day vs. custom tub-to-shower conversion: what is the difference?

You have probably seen ads promising a new shower in a single day, so it is worth understanding what those actually are. A one-day conversion is an acrylic wall system installed over your existing tub footprint. It is fast and low-disruption because there is no tile work, and it typically costs $4,000 to $12,000 for a straightforward swap. The trade-off is that you choose from a limited menu of prefabricated panels, and the layout stays exactly as it is.

A custom tub-to-shower conversion removes the tub and builds a fully tiled walk-in shower in its place, with real tile, waterproofing, and a frameless or semi-frameless glass enclosure. It costs a bit more and takes longer than a single day, but you get complete design freedom and a finished result built for your specific bathroom.

Bath By Design SA builds custom, tiled conversions rather than acrylic drop-in systems. If a quick acrylic swap is what you are after, another provider may be the better fit. If you want a tiled, design-driven shower that lasts, that is exactly what we do — and the rest of this guide walks through that process.

How much does a tub-to-shower conversion cost in San Antonio?

For a custom tiled conversion, most San Antonio homeowners land in the $5,000 to $12,000 range. What moves the number:

Shower size. A standard tub alcove is about 30 by 60 inches. Building the shower within that footprint keeps costs efficient; expanding it means more tile, more waterproofing, and a larger glass enclosure.

Tile and materials. Tile is usually the largest single material cost. Ceramic and porcelain are budget-friendly, while natural stone and large-format slabs sit at the premium end.

Glass. A frameless enclosure costs more than a semi-frameless panel or a single fixed splash panel, and it delivers the cleanest, most open look.

Plumbing. Keeping the drain and supply lines where they are keeps costs down. Relocating the drain adds roughly $1,000 to $3,000 because it means opening the slab.

For how a conversion fits into wider remodeling budgets, see our full bathroom remodel cost in San Antonio guide.

The tub-to-shower conversion process, step by step

A custom conversion is a straightforward project when it is done in the right order by a licensed team. Here is what to expect:

1. Design and measurement. We measure your bathroom, confirm the layout, and finalize tile, glass, and fixture selections so there are no surprises once work begins.
2. Demolition. We remove the old tub and surround and haul the debris away. In older San Antonio homes, cast-iron tubs and concrete surrounds take extra effort to break out.
3. Plumbing adjustments. We set the drain and valve for a shower and make any adjustments needed for your layout, all to local code.
4. Waterproofing. This is the step that protects the whole project. We build and seal a proper shower pan and waterproof the walls so the finished shower stays leak-free for years.
5. Tile installation. We set your chosen tile on the walls and floor, including the shower niche and any accent details.
6. Glass and fixtures. We install the glass enclosure, showerhead, and fixtures.
7. Final walkthrough. We clean up, inspect everything with you, and make sure the finished shower matches the plan.

How long does a tub-to-shower conversion take?

Most custom tub-to-shower conversions take a few days to about two weeks on site, depending on the size of the shower, the tile you choose, and whether any plumbing moves. Custom tile work needs time to be done right — the waterproofing has to cure and the tile has to be set carefully — so a quality conversion is measured in days, not hours. We give you a realistic, specific timeline during your free quote so you can plan around it.

Convert now and be done before the holidays

Fall is one of the best times to book a conversion. Scheduling now means your new shower is finished and ready well before holiday guests arrive, and before the busy end-of-year season fills up the calendar. If a done-before-the-holidays timeline matters to you, the sooner we get your project on the schedule, the more flexibility you have on dates and materials.

Converting a tub in a San Antonio home

Conversions are our most-requested project across San Antonio and the surrounding suburbs. Older and historic homes sometimes hide dated plumbing or past water damage behind the tub, which is why we inspect thoroughly before demolition and quote honestly, with no surprises after the walls open. If you want to see the design possibilities, our walk-in showers page and our tub-to-shower conversion service page show what a finished conversion looks like.