For bathtub replacement, San Jose homeowners are budgeting $1,200 to $8,500 installed for a standard alcove tub swap — and up to $12,000–$20,000 for a freestanding tub installation with plumbing relocation and floor tile work. Construction Remodeling in Bay Area (CA Lic. #1095283) handles the full scope: tub install and removal, rough plumbing, tile surround, and permits.
By Ray Evgeny Khaikin, Owner, Construction Remodeling in Bay Area · Last updated 18, June 2026
Bathtub replacement is one of the most scope-variable bathroom projects a homeowner can undertake. At its simplest, it’s a direct drop-in swap — remove the old tub, install a new one of the same dimensions, connect to the existing rough plumbing, and retile the surround. At its most complex, it’s a freestanding tub installation in the center of a full primary bath renovation with floor-to-ceiling tile, plumbing relocation, and a floor drain. Knowing which category your project falls into — and what it costs in the San Jose market — is what this guide covers.
How much does it cost to replace a bathtub
The question of how much does it cost to replace a bathtub in the San Jose and South Bay market has a wide answer because scope varies so dramatically. Here’s a structured breakdown for 2026:
Scope | Installed cost San Jose |
Drop-in alcove tub swap, same size, existing surround | $1,200 – $3,500 |
Alcove replacement with new tile surround | $3,500 – $7,500 |
Freestanding tub installation, existing drain location | $4,500 – $10,000 |
Freestanding tub with plumbing relocation + floor tile | $10,000 – $20,000+ |
Bathtub to shower conversion (alcove) | $7,500 – $15,000 |
The bathtub replacement cost guide for homeowners in San Jose should start with a clear understanding of which scope you’re in. If the existing tub is a standard 60×30 or 60×32 inch alcove tub and the walls are in good condition, a simple tub install and removal — keeping the existing rough plumbing, drain location, and surround — is the most affordable path. If the surround is compromised (cracked tile, failing grout, water damage behind the walls), the surround repair cost often equals or exceeds the tub cost itself.
What is the best bathtub material?
When homeowners ask what is the best bathtub material? the answer depends on the priority — durability, weight, heat retention, ease of installation, or aesthetics. Here’s how the main materials compare for San Jose residential projects:
Acrylic is the most common material for alcove tub replacements and the best choice for a straightforward drop-in swap. It’s lightweight (making tub install and removal manageable without floor reinforcement), easy to clean, available in virtually every size and profile, and durable under regular use. The trade-off: it scratches more easily than cast iron and doesn’t retain heat as long. For a 60-inch alcove replacement, acrylic is almost always the right call.
Cast iron is the premium traditional choice — extremely durable (100-year lifespan is realistic), excellent heat retention (cast iron holds bath water temperature significantly longer than acrylic or steel), and the weight that signals quality. The challenge: cast iron tubs weigh 300–500 lbs, which requires floor structure verification before installation and makes tub install and removal a specialized job. In San Jose’s older housing stock, floor reinforcement is sometimes needed.
Enameled steel is a mid-tier option — heavier than acrylic but lighter than cast iron, decent durability, and lower cost. Less heat retention than cast iron. The enamel chips over time with impact. Not the first choice for a high-end installation but appropriate for a budget alcove replacement.
Stone resin / composite is the premium material for freestanding tub installation — it achieves the thick-walled organic profiles that define the luxury freestanding look, holds heat nearly as well as cast iron, and is lighter than cast iron (typically 150–200 lbs for a freestanding unit). This is what the NKBA consistently identifies as the preferred freestanding tub material for primary bath renovations.
Fiberglass is the lowest-cost option and the shortest-lived — it fades, scratches, and flexes more than other materials. Appropriate for rentals and secondary baths where budget is the driver.
Best bathtub replacement options 2026
For best bathtub replacement options 2026 in the San Jose market, here’s what we’re recommending and installing most:
For alcove replacement (keeping the tub): a 60-inch acrylic soaking tub with a drop-in profile — deeper than a standard builder-grade tub, same footprint, 3–5 inch deeper soaking basin. Brands like American Standard, Kohler, and MAAX offer this configuration at $400–$1,200 for the tub unit. Installed in the existing alcove with a new 3-panel tile surround: $4,500–$7,500 total.
For freestanding upgrade (primary bath renovation): a stone resin freestanding tub, centered on a tiled floor with a floor-mount tub filler and a hand shower — the definitive luxury primary bath configuration. Freestanding tub installation at this tier runs $12,000–$20,000 with the floor tile work and plumbing.
For the hybrid remodel (tub + shower in primary bath): a soaking tub in the tub alcove plus a separate walk-in shower in the converted shower space. This is the configuration that maximizes both buyer appeal and daily usability — the separate shower handles daily use, the tub handles the soaking experience, and the primary bath has both.
How to choose a new bathtub for remodel?
The answer to how to choose a new bathtub for remodel? starts with four decisions in order:
- Keep the tub or convert? If you’re replacing the tub because it’s damaged or dated but want to keep the bathing option, you’re choosing a replacement. If the tub goes largely unused and you’d benefit more from a larger shower, a bathtub to shower conversion is the better investment.
- Alcove or freestanding? Alcove tubs are installed against three walls and fit standard 60-inch alcove openings — the most common configuration in San Jose’s older housing stock. Freestanding tubs stand independently and require a finished floor on all sides, a floor-mounted filler (not a wall-mounted faucet), and plumbing rough-in at the floor rather than the wall. A freestanding tub installation in a space designed for an alcove tub requires plumbing relocation — a significant cost addition.
- Material for the use case. Acrylic for an alcove replacement where weight and cost efficiency matter; stone resin or cast iron for a freestanding tub where heat retention and visual weight matter.
- Size and soaking depth. Standard alcove tubs are 14–15 inches interior depth. A soaking tub runs 18–22 inches. A deep soaking tub in the existing alcove footprint (same width and length, more depth) is the most impactful upgrade without any structural change.
Bathtub to shower conversion
Bathtub to shower conversion is worth addressing here because it’s the alternative path homeowners evaluate when replacing a bathtub — and it’s genuinely the right call for a significant number of San Jose homeowners. The conversion typically runs $7,500–$15,000 for a full tile alcove shower with frameless glass and is worth it when:
- The tub is rarely used and a larger, more functional shower is the daily priority
- There’s another tub elsewhere in the home (keeping one tub is important for resale in San Jose)
- The existing bathroom is small and the shower-only configuration frees up visual and functional space
The conversion requires a plumbing permit from the City of San Jose — same as any bathtub replacement involving plumbing work under the 2025 California Building Code (effective January 1, 2026). As of 2026, California’s EPA WaterSense standards apply to new showerhead and faucet installations, requiring showerheads at or below 1.8 gpm — stricter than the federal 2.5 gpm threshold.
How long does bathtub replacement take?
How long does bathtub replacement take? in San Jose, depending on scope:
- Drop-in alcove swap, existing surround: 1 to 2 days (removal, tub installation, plumbing reconnect)
- Alcove replacement with new tile surround: 4 to 7 days (demo, waterproofing cure time, tile, grout cure, fixtures)
- Freestanding tub installation, existing drain location: 3 to 5 days
- Freestanding tub with plumbing relocation + floor tile: 7 to 14 days
- Bathtub to shower conversion: 5 to 10 days
The wildcard in San Jose is the permit timeline — a plumbing permit for bathtub replacement is required when the work involves new or relocated plumbing (virtually all replacements other than a same-location same-connection drop-in swap). San Jose offers online permit issuance through sjpermits.org for qualifying residential bathroom work, which can reduce the wait to 1–2 days for straightforward projects.
Frequently Asked Questions
How much does bathtub replacement cost in San Jose?
In 2026, a drop-in alcove tub swap in San Jose runs $1,200 to $3,500 for tub and installation with the existing surround intact. With a new tile surround, $3,500 to $7,500. Freestanding tub installation runs $4,500 to $10,000 from an existing drain location, or $10,000 to $20,000 when plumbing relocation and floor tile are included. San Jose labor rates and permit costs run above national averages.
Can I replace just my bathtub without remodeling?
Yes — a same-location alcove tub swap (same size, same drain location, existing surround intact) is the most contained scope. The tub is removed, a new tub is installed on the existing plumbing, and the existing surround remains. If the surround is in good condition, this is a 1 to 2 day project. A plumbing permit is required in San Jose any time plumbing fixtures are installed or reconnected, even for a direct replacement.
How long does a bathtub replacement take?
A direct alcove swap takes 1 to 2 days. An alcove replacement with a new tile surround takes 4 to 7 days. Freestanding tub installation with plumbing relocation and floor tile runs 7 to 14 days. The permit process for qualifying residential projects can be completed online through San Jose’s sjpermits.org in 1 to 2 days for straightforward tub replacements.
What type of bathtub lasts the longest?
Cast iron is the longest-lasting bathtub material with a realistic 100-year lifespan, excellent heat retention, and enamel surface that resists chipping when properly maintained. Stone resin is the premium option for freestanding tubs — 40 to 60 year lifespan, near-cast-iron heat retention, and lighter for installation. Acrylic is the most practical for alcove replacements — 15 to 30 year lifespan depending on maintenance, lightweight, and available in every size. Avoid fiberglass for a primary bath; it fades and scratches within 10 to 15 years of daily use.
Do I need a plumber to replace a bathtub?
In California, yes — licensed plumbers must perform and permit all plumbing work. Any bathtub replacement involving new or relocated supply lines, drain connections, or fixture installation requires a California-licensed plumber and a plumbing permit from the City of San Jose. A homeowner can perform the work on their own residence in some cases, but a permit is still required. CRBA coordinates the full scope — licensed plumbing subcontractor, permit, and inspection — as part of our standard bathroom remodeling process.
Contact Us
Construction Remodeling in Bay Area 111 Jackson St, Hayward, CA 94544 Phone: (510) 990-9243 CA License #1095283 | Full-Service Design-Build Remodeling | Bay Area
Serving San Jose, Hayward, Fremont, Santa Clara, Sunnyvale, and the greater South Bay.
Request a free bathtub replacement estimate or call (510) 990-9243.
