Bathtub Cost Calculator

How Much Does a New Bathtub Cost?

Bathtub costs range from a few hundred dollars for a basic fiberglass alcove tub to several thousand dollars for a luxury freestanding cast-iron model. The total project cost includes the tub itself, installation labor, plumbing connections, and potentially demolition and disposal of the old tub. Understanding these components helps you budget accurately and avoid surprises.

The average homeowner spends between $1,500 and $5,000 on a complete bathtub installation project. This range covers the most common scenario: replacing an existing alcove tub with a new acrylic model, including basic plumbing hookup and disposal of the old unit.

Bathtub Types Compared

Alcove tubs are the most common and affordable option. They fit into a three-walled recess and are designed for shower-over-tub combinations. Standard sizes are 60 inches long and 30 to 32 inches wide. Because they use an existing alcove, installation is straightforward and relatively inexpensive.

Freestanding tubs make a design statement as the centerpiece of a bathroom. They require floor-mounted plumbing and more floor space but offer unmatched visual impact. Popular styles include clawfoot, pedestal, and modern sculptural shapes. Expect to pay a premium for both the tub and installation.

Walk-in tubs are designed for accessibility and safety, featuring a door that allows entry without stepping over a high wall. They include built-in seats, grab bars, and often therapeutic features like jets and heated surfaces. Walk-in tubs are the most expensive category due to their specialized engineering.

Corner tubs fit into a corner and are triangular or pentagonal in shape. They work well in bathrooms where a standard alcove layout is not practical. Soaking tubs are deeper than standard tubs, designed for full-body immersion. Japanese-style soaking tubs are shorter but deeper, ideal for bathrooms where length is limited.

Bathtub Materials

Fiberglass is the most affordable tub material at $200 to $800 for the unit. It is lightweight, easy to install, and available in many shapes. The downside is durability — fiberglass is prone to cracking, scratching, and fading over time. Expect a fiberglass tub to last 10 to 15 years with proper care.

Acrylic tubs cost $400 to $2,000 and offer a significant upgrade in durability and appearance. Acrylic is reinforced with fiberglass backing, making it stronger while retaining a glossy, non-porous surface that resists stains and is easy to clean. Acrylic tubs hold heat better than fiberglass and last 15 to 20 years.

Cast iron is the premium choice at $800 to $5,000 depending on size and style. Cast-iron tubs are coated with porcelain enamel, creating an extremely durable, scratch-resistant surface with excellent heat retention. They can last 50 years or more. The major downside is weight — a cast-iron tub can weigh 300 to 500 pounds, which may require floor reinforcement.

Installation Cost Factors

Replacement installations are simpler and cheaper than new installations. When replacing a tub in the same location with the same type, the plumbing connections usually align and the surround may only need minor adjustments. New installations require running new supply lines, drain pipes, and vent stacks, which can double the plumbing cost.

Demolition and disposal of an old tub typically costs $300 to $700. Fiberglass and acrylic tubs can be cut apart and removed in pieces. Cast-iron tubs are much heavier and more difficult to remove, often requiring two or three workers and potentially door frame modifications to get the old tub out of the bathroom.

Should You Refinish or Replace?

Tub refinishing is an alternative worth considering if the tub is structurally sound but cosmetically worn. Professional refinishing costs $300 to $600 and can make an old tub look new for 10 to 15 years. Refinishing is especially attractive for cast-iron tubs that are expensive to replace and difficult to remove.

Replace rather than refinish if the tub has cracks, chips that go through to the base material, persistent drainage problems, or if you want to change the tub type or size. Refinishing a tub with structural damage is a temporary fix that will likely fail within a few years.

Frequently Asked Questions

How long does bathtub installation take?

A straightforward alcove tub replacement takes 1 to 2 days. Freestanding tub installations with new plumbing require 2 to 3 days. Walk-in tubs and installations involving structural changes can take 3 to 5 days.

Do I need a permit for a bathtub replacement?

A direct replacement of the same type of tub typically does not require a permit. However, if you are adding new plumbing lines, changing the drain location, or converting a tub to a shower, a plumbing permit is usually required.

Can I install a bathtub myself?

Replacing an alcove tub with the same type is a feasible DIY project for someone with basic plumbing skills. Freestanding and walk-in tubs typically require professional installation due to plumbing complexity and weight considerations.

What is the best bathtub material for daily use?

Acrylic offers the best balance of durability, comfort, affordability, and ease of maintenance for everyday use. It retains heat well, resists stains, and is available in a wide range of styles.

How heavy is a cast-iron bathtub?

An empty cast-iron bathtub weighs 300 to 500 pounds depending on size. Filled with water and an occupant, the total load can exceed 1,000 pounds. Ensure your floor structure can support this weight before installation.

Is a walk-in tub worth the cost?

Walk-in tubs are a worthwhile investment for aging-in-place situations or for individuals with mobility challenges. The accessibility, safety features, and therapeutic benefits justify the higher cost for people who need them. They can also increase home value in markets with aging demographics.

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Estimates only. Prices vary by region, brand, and installer. Get multiple quotes from licensed professionals for your specific project.