Bathtub Installation Cost Guide
The bathtub installation cost in 2026 runs from about $800 for a basic alcove tub installed on existing plumbing to $5,000 or more for a freestanding, jetted, or walk-in tub with new drains and finishes. Most homeowners pay $1,500 to $3,500 all-in for a standard replacement tub, including the tub itself, the drain and overflow assembly, the faucet, and labor. The tub type is the biggest variable, followed by whether the drain moves and whether the surrounding walls need tile or surround work.
Average Bathtub Installation Cost in 2026
Breaking a standard install into parts clarifies the total. The tub itself costs $300 to $1,200 for a basic alcove or drop-in model, $800 to $2,500 for a freestanding tub, and $2,000 to $5,000 for a walk-in or jetted tub. Plumbing labor and parts — drain and overflow assembly, faucet and valve hookup, supply lines, and testing — run $500 to $1,500. Surround work, including a tub surround kit or tile, adds $300 to $2,500. Demolition and disposal of the old tub adds $200 to $600, more if the old tub is cast iron and must be broken out in pieces.
These ranges assume the new tub goes where the old one was. A new tub in a different location, or the first tub in a bathroom that previously had only a shower, is a bigger job with new drains, venting, and possibly a larger water heater. For the broader remodel budget, see bathroom plumbing remodel cost, and browse the bathroom plumbing hub for related guides.
Bathtub Installation Cost by Type
| Tub type | Tub price | Typical all-in install cost |
|---|---|---|
| Alcove tub (3-wall) | $300–$1,200 | $1,500–$3,500 |
| Drop-in tub | $400–$1,500 | $1,800–$4,000 |
| Freestanding tub | $800–$2,500 | $2,500–$5,000 |
| Corner tub | $600–$2,000 | $2,000–$4,500 |
| Walk-in tub | $2,000–$5,000 | $4,000–$8,000 |
| Jetted / whirlpool tub | $1,000–$3,500 | $2,500–$6,000 |
| Soaking tub (deep) | $700–$2,500 | $2,000–$5,000 |
Freestanding tubs cost more to install than their price suggests because the drain comes up through the floor at an exact point, the tub is heavy and awkward to position, and the freestanding faucet — often floor-mounted — needs its own supply rough-in. If the floor drain location is off by even an inch, the floor must be opened and the drain moved, so freestanding tub installs demand precise measurement before the flooring goes down.
What the Installation Includes
A professional tub install follows a set sequence. First, the water is shut off, the old tub is disconnected and removed, and the area is inspected for water damage, mold, or subfloor rot — common finds under old tubs. Next, the new drain and overflow assembly is installed and the tub is set in place, leveled, and secured. For alcove tubs, a mortar bed under the tub is standard practice: it supports the tub floor, prevents flexing, and stops the creaking and cracking that plague unsupported tubs. Then the plumber connects the supply lines, installs the faucet and valve trim, fills the tub, and checks every joint for leaks under load.
Surround work is often a separate scope. A three-piece acrylic surround kit costs $200 to $600 and installs in a day, while a tiled surround costs $1,000 to $2,500 and takes several days including grout cure time. Confirm in writing whether the plumbing bid includes the surround, the faucet, and haul-away of the old tub — these are the three items most often assumed by one side and omitted by the other.
Drain and Plumbing Considerations
Tub drains are typically 1-1/2 inch lines, and many jurisdictions now require 2-inch drains for new tub installations — if your home has an older 1-1/2 inch drain, upsizing it adds pipe work below the floor and $200 to $600. The drain location also matters: alcove tubs have a standard drain position, but freestanding and corner tubs vary by model, so the drain rough-in must match the specific tub you buy. Buy the tub before the plumber roughs the drain, not after.
The faucet configuration affects cost as well. A standard tub-shower combination faucet is the cheapest install. A deck-mounted Roman faucet on a drop-in tub needs holes in the deck and longer supply runs. A floor-mounted freestanding filler needs supply lines roughed into the floor at an exact spot, adding $300 to $800. If your new tub location differs from the old one, see our guide to the cost to move plumbing in a bathroom for drain-move pricing, which applies directly to tub relocations.
Tub-to-Shower and Shower-to-Tub Conversions
Converting a tub to a shower is one of the most common bathroom projects in 2026, driven by aging-in-place and the preference for walk-in showers. A tub-to-shower conversion costs $3,000 to $8,000 all-in, including removing the tub, installing the shower base or pan, waterproofing, a new valve and shower head, and a surround or tile. The drain usually stays in place or moves slightly, which keeps plumbing costs moderate; the bulk of the cost is the shower enclosure and tile.
The reverse — shower to tub — is less common and often pricier, because a tub needs a larger footprint, a different drain assembly with an overflow, and sometimes a reframed alcove. Budget $2,500 to $6,000 for a shower-to-tub conversion, plus any tile and wall repair. If you are weighing the two, our guide to shower installation cost gives the shower side of the comparison in detail.
Cost Factors and Hidden Extras
- Cast-iron removal. An old cast-iron tub can weigh 300 pounds or more and usually must be broken apart with a sledgehammer for removal, adding $200 to $500 in labor and disposal.
- Subfloor damage. A slow tub drain leak often rots the subfloor underneath. Replacing a section of subfloor adds $300 to $1,500, and it is far better discovered during the install than after the new tub is set.
- Water heater capacity. A deep soaking tub can hold 60 to 80 gallons, more than a standard 40-gallon water heater delivers at once. A heater upgrade adds $1,200 to $2,500 if needed.
- Electrical work. Jetted and walk-in tubs need a dedicated GFCI circuit, and walk-in tubs with heaters need more. Budget $300 to $800 for an electrician if no suitable circuit exists.
- Weight and floor support. A filled cast-iron or stone tub can exceed 800 pounds. Older homes may need added joist support, costing $300 to $1,000.
- Permits. A like-for-like tub swap often needs no permit, but a drain move, a new tub location, or a jetted tub's electrical work usually does — typically $100 to $400.
Also consider the faucet and valve: a tub-shower combo valve with pressure balancing costs $150 to $400 for the valve plus installation, and it is required by code in most new installations. Skipping it to save money risks scalding when a toilet flushes, and an inspector will flag it.
DIY vs. Professional Installation
Replacing an alcove tub with an identical model on existing plumbing is within reach of an experienced DIYer, but it is a two-person job — tubs are heavy, awkward, and unforgiving of a dropped corner on a tile floor. The critical skills are setting the tub level in a mortar bed, making a leak-free drain and overflow connection in a tight space, and sealing the tub-to-wall joint so water cannot reach the framing. A mistake in any of these shows up months later as a leak, a cracked tub floor, or mold behind the surround.
Hire a professional for freestanding tubs, any drain move, jetted or walk-in tubs (which add electrical work), and any install where the subfloor condition is unknown. A professional install typically carries a one-year workmanship warranty on the connections, and the plumber's insurance covers the water-damage risk that a DIY install leaves on the homeowner. If you do tackle it yourself, buy a new drain and overflow assembly rather than reusing the old one, and fill the tub completely and check every joint before closing up the access panel.
Hiring, Permits, and Timeline
A straightforward alcove tub replacement takes 1 to 2 days: demolition and removal on day one, setting and hookup on day one or two, with surround work adding 1 to 3 days for tile. A freestanding tub takes 1 to 2 days plus extra time if the floor drain must be repositioned. A walk-in tub install takes 1 to 3 days including the electrical hookup and door-seal testing. Custom tile surrounds extend any timeline by several days for setting and curing.
When hiring, get an itemized bid that separates the tub, the drain and overflow assembly, the faucet and valve, demolition and disposal, surround work, and permits. Ask whether a mortar bed is included for alcove tubs — it should be, and a bid that omits it is a red flag. Verify the installer's license and insurance, and ask for the tub's specification sheet to be matched against the drain rough-in before work begins. For related numbers, see bathroom vanity installation cost if the vanity is part of the same remodel, and the bathroom plumbing hub for the full category.
Ready for a new tub? Call (877) 762-1902 for a free plumbing consultation.