Cost to Replace a Bathtub With a Shower

Replacing a bathtub you never use with a shower you use every day is one of the highest-satisfaction projects we do. It reclaims floor space, makes a bathroom safer to step into, and modernizes a room that has usually been untouched since the house was built. The question almost everyone asks first is the same: what does it actually cost? In the Sacramento–Placer market in 2026, a tub-to-shower conversion generally lands somewhere between $6,500 and $32,000, and this guide explains exactly why the number swings so widely.

The honest answer is that "replace a tub with a shower" describes three very different projects. Snapping acrylic panels into the old footprint is a world apart from building a curbless tiled wet area with a new drain location. Below we break the cost into realistic tiers, walk the individual line items, flag the hidden costs that catch homeowners off guard in older housing stock, and give you a clean way to budget before you ever request a quote.

The three price tiers, at a glance

Every conversion falls into one of three buckets. Where yours lands depends mostly on the wall material you choose and how much has to change behind the wall — not on brand names or fixtures alone.

• $6,500–$9,500 — Basic acrylic conversion. A one-piece or multi-piece acrylic shower with a low-threshold pan, often reusing the existing drain location and valve position. Fast, watertight, and the value leader. This is the tier most "tub-to-shower in a day" ads are pointing at, though a real permitted job is rarely a single day.
• $11,000–$18,000 — Mid-range tiled walk-in. A custom-tiled surround on a waterproof membrane, a mortar-set or foam sloped pan, a relocated center drain, a new pressure-balanced valve, and a framed glass panel or door. This is the most popular tier and where design choices start to matter.
• $19,000–$32,000 — Curbless / luxury build. A zero-threshold, roll-in shower with a linear drain, large-format or specialty tile, frameless glass, a niche and bench, and often a relocated or widened footprint. This tier doubles as an aging-in-place upgrade and commands a premium for the waterproofing and floor-recessing work a curbless entry requires.

Full line-item cost breakdown

Here is where the money actually goes on a mid-range tiled conversion — the tier most homeowners choose. Every range assumes the Sacramento–Placer market in 2026 and is an estimate, not a quote, because the wall never reveals its secrets until demolition day.

• $700–$1,600 — Demolition & tub haul-away. Removing the old tub, surround, and any damaged backer, then disposing of it. Cast-iron tubs cost more to break out and carry.
• $900–$2,200 — Drain relocation & slab cut. Moving the drain to the shower center. On slab-on-grade homes this means saw-cutting and patching concrete, which is the single biggest swing item on a conversion.
• $350–$900 — Drain upsize to 2 inches. Bringing an older 1.5-inch tub line up to the 2-inch shower drain that California Plumbing Code requires.
• $450–$1,100 — New valve & rough plumbing. A modern pressure-balanced or thermostatic valve, supply adjustments, and any pipe replacement behind the wall.
• $800–$1,900 — Waterproofing system. Membrane, corner and seam treatment, and a sloped pan. This is the invisible layer that determines whether the shower lasts 20 years or leaks in three.
• $2,200–$5,500 — Tile material & installation. Wall and floor tile, backer board, thinset, and grout, plus the days of skilled setting labor that make tile expensive.
• $900–$2,400 — Glass enclosure. A framed panel and door at the low end; frameless glass at the high end.
• $400–$1,100 — Fixtures & trim. Showerhead, hand shower, niche, bench, and finish hardware.
• $350–$800 — Permit & inspections. Pulled by your contractor; required whenever plumbing moves or the drain is upsized.

Why homeowners make the switch

Most of the conversions we do in Roseville, Rocklin, Auburn, and the surrounding communities are driven by one of three motivations. The first is simple daily use: a lot of homes have a tub in the primary bathroom that no adult has actually taken a bath in for years, and it eats floor space a walk-in shower would use far better. The second is safety — stepping over a 15-inch tub wall becomes a real hazard as knees and balance change, and a low-threshold or curbless shower removes that risk. The third is the 1960s–80s ranch and tract stock that fills our region, where the original fiberglass or steel tub is simply worn out and dated.

A conversion makes the most sense when it is not your only tub. Our standing advice is to keep at least one bathtub in the home — typically a hall or kids bathroom — and convert the primary suite or a secondary full bath to a shower. That preserves resale appeal for buyers who want a tub while giving you the shower you actually use.

What the process looks like

A permitted tiled conversion moves through a predictable sequence, and knowing it helps you understand where the time and money go.

1. Demolition. The tub, surround, and any water-damaged framing or backer come out. This is when hidden mold and rot behind the old tub are discovered.
2. Rough plumbing. The drain is relocated and upsized, the new valve is set, and the inspector signs off on the rough before anything gets closed up.
3. Waterproofing & pan. The membrane goes on, the pan is sloped to drain, and the assembly is flood-tested. This step cannot be rushed.
4. Tile & grout. Walls and floor are set, grouted, and given cure time.
5. Glass, fixtures & final inspection. The enclosure and trim go in, and the final inspection closes the permit.

What drives the price up or down

Two identical-looking bathrooms can quote thousands apart. These are the factors that move your number, and most of them are decided before a single tile is set.

Pushes the price up

• Relocating the drain on a concrete slab (cut, patch, and cure).
• Upsizing an old 1.5-inch line to the code-required 2-inch shower drain.
• Custom tile, large-format or specialty stone, and frameless glass.
• A curbless entry, which requires recessing the floor and heavier waterproofing.
• Hidden water damage, mold, or dated wiring uncovered at demolition.
• Expanding the footprint beyond the original tub alcove.

Keeps the price down

• Reusing the existing drain location with an acrylic pan built for it.
• Acrylic or laminate wall panels instead of hand-set tile.
• Keeping the original footprint and valve position.
• A framed glass panel rather than a full frameless enclosure.
• Sound original plumbing that does not need replacement behind the wall.

Placer vs. Sacramento County: the pricing delta

Homeowners often ask whether they are paying a premium for a Placer County address. The honest answer is: a little, but not enough to change your decision. Labor rates run modestly higher in communities like Granite Bay, Rocklin, and Loomis than in parts of Sacramento County, and permit fees and inspection turnaround vary by jurisdiction. On a typical conversion the total county delta is usually a few hundred dollars up to about $1,000. Material costs are effectively identical across the region because every contractor buys from the same Sacramento-area supply houses. Where a jurisdiction matters more is scheduling — some plan-check and inspection queues move faster than others, which affects your timeline more than your budget.

The hidden costs to budget for

The gap between a clean quote and a final invoice almost always comes from what was behind the wall. In pre-1990 Sacramento and Placer homes, plan for these four:

• Slab cut for the drain. On slab-on-grade homes, moving the drain means cutting concrete — figure $900–$2,200, and it is rarely optional on a true conversion.
• Drain upsize to 2 inches. A code requirement that older tub plumbing usually does not meet: $350–$900.
• Mold and rot. Water that wicked past an old tub surround years ago shows up as damaged framing and backer at demolition. Remediation and reframing can add $500–$2,500.
• Out-of-date valves and venting. Original single-handle or unbalanced valves and marginal venting sometimes have to be brought up to current code before the inspector will pass the rough.

This is why we recommend carrying a 10–15% contingency on any conversion in older housing stock. It is also why an accurate estimate depends on someone actually looking at your bathroom — the surprises are specific to your walls, not to a price chart. If your existing shower is a worn fiberglass unit rather than a tub, the cost math shifts, and our companion guide on the cost to replace a fiberglass shower breaks that scenario down. You can also compare across our full shower replacement guides before you commit.

Financing without the deferred-interest trap

A conversion in the mid or luxury tier is a real number, and paying for it over time is normal. We work with homeowners on straightforward fixed-rate monthly financing so the project does not have to come out of savings all at once. One caution: be wary of "same-as-cash" or deferred-interest promotions. If you miss the payoff date by even a day, many of those plans retroactively charge interest back to day one at a high rate. A simple installment loan with a fixed rate and a clear payoff is almost always the safer structure for a project this size, and it makes the monthly cost predictable from the start.

Return on investment

A tub-to-shower conversion is one of the more sensible remodeling dollars you can spend, for two reasons. First, day-to-day livability improves immediately — a bathroom you actually enjoy using is worth something no spreadsheet fully captures. Second, an updated, walk-in primary shower is a genuine selling point in our market, especially for buyers who are downsizing or planning to age in place. The key is balance: keep a tub somewhere in the home, convert the bathroom where a shower earns its keep, and choose finishes that read as current without chasing trends that date quickly. Done that way, the money you put in tends to come back in both enjoyment and resale.

Getting an accurate estimate

The ranges in this guide are honest planning numbers, but your real cost depends on your drain location, your plumbing's age, your slab, and what a demolition reveals — none of which a price chart can see. As a 5.0★-rated, licensed bathroom-only remodeler (#1125321) based in Rocklin, Oakwood Remodeling Group has converted hundreds of bathrooms across Placer and Sacramento counties, and every estimate we give starts with someone standing in your bathroom, not guessing from a photo. When you are ready for a firm number tailored to your home, request a free in-home estimate and we will walk the space, name the likely surprises, and put a real range in writing before any work begins.