Bath to Shower Conversion Cost

A bath to shower conversion is a bathroom remodeling project that replaces an existing bathtub with a walk-in or stall shower. The project involves removing the tub, adapting the plumbing, waterproofing the wall and floor, and installing a new shower base and surround. The cost of a bath to shower conversion ranges from $1,200 to $9,000 per project, with most homeowners paying about $4,500 for a mid-range acrylic or tiled shower.

Cost Overview

A bath to shower conversion costs $1,200 to $9,000 depending on whether the new shower uses a prefabricated acrylic kit, a solid-surface base with wall panels, or custom tile. A basic acrylic conversion in the same footprint as the old tub runs $1,200 to $3,500. A mid-range solid-surface or panel system runs $3,000 to $6,000. A custom tiled walk-in shower with a glass enclosure runs $6,000 to $9,000 or more.

The single largest variables are the shower material and whether plumbing needs to be relocated. Keeping the drain and valve in their original positions keeps costs at the low end; moving them adds $500 to $1,500 in plumbing labor.

Cost by Type and Material

The material of the new shower drives both price and maintenance:

• Acrylic or fiberglass kits ($1,200-$3,500): One-piece or multi-piece units that snap into place. Fast to install, seamless, and easy to clean.
• Solid-surface panels ($3,000-$6,000): Cultured marble or composite panels over a molded base. Durable and grout-free.
• Ceramic or porcelain tile ($6,000-$12,000): Fully custom. Requires a mortar bed or backer board, waterproofing membrane, and grout sealing.
• Natural stone tile ($9,000-$15,000): Marble, travertine, or slate. Premium look with higher material and sealing costs.

Fixtures add to the total. A basic shower valve and head run $150-$400, while a thermostatic valve with a rainhead and body sprays runs $600-$2,000.

Cost by Size and Project Scope

Most tub-to-shower conversions reuse the standard 60-inch by 30-inch tub alcove, which keeps costs predictable. Expanding the footprint, going curbless, or building a barrier-free wet room increases both labor and material.

• Standard alcove (same footprint): $1,200-$5,000
• Expanded shower (removing a wall or vanity): $5,000-$9,000
• Curbless/barrier-free walk-in: $6,000-$12,000
• Accessibility conversion with grab bars and bench: $4,000-$10,000

You can estimate your own project with this conversion cost calculator before requesting quotes.

What Affects the Price

Several factors move a conversion from the low end to the high end:

1. Plumbing relocation: Moving the drain from a tub position to a centered shower drain requires cutting the subfloor and rerouting pipe, adding $500-$1,500.
2. Waterproofing method: A liquid or sheet membrane under tile adds $300-$800 versus a prefab pan.
3. Glass enclosure: A frameless glass panel and door adds $900-$3,000; framed doors add $300-$800.
4. Tile complexity: Niches, benches, mosaic accents, and large-format tile increase labor.
5. Wall condition: Water-damaged studs or subfloor discovered after tub removal add repair cost.
6. Permits and inspection: Plumbing permits run $50-$500 depending on jurisdiction.

Labor vs. Materials

On a typical $4,500 conversion, labor accounts for 50-65% of the total. A prefab acrylic conversion may be $1,500 in materials and $2,000 in labor. A custom tiled shower flips that ratio, with tile, membrane, and fixtures costing $3,000-$5,000 and labor $3,000-$6,000.

Labor involves a plumber for the valve and drain ($75-$150/hour), and a tile setter or installer for the surround ($50-$100/hour). Demolition and haul-away of the old tub is usually included but can add $200-$500 for cast-iron tubs that must be broken up.

Expert tip: If your existing tub drain is offset to one side, ask for a linear or center drain conversion quote in writing. Contractors sometimes assume the drain stays put, and relocating it after demo is where surprise charges appear.

DIY vs. Hiring a Pro

A handy homeowner can install a prefab acrylic conversion kit for $1,000-$2,500 in materials, saving $1,500-$3,000 in labor. The demolition and dry-fit are manageable, but the plumbing valve connection and waterproofing are where DIY projects fail.

• Reasonable DIY: Tub removal, wall demo, installing a prefab kit with an existing drain.
• Hire a pro: Any drain relocation, valve soldering or PEX connections, tile waterproofing, and glass enclosure installation.

A failed waterproofing job can cause hidden rot costing thousands to repair, so tile showers are best left to professionals with warranty backing.

Additional and Hidden Costs

Beyond the base quote, budget for:

• Subfloor or stud repair: $300-$1,500 if water damage is found after demo.
• Electrical or venting updates: Adding an exhaust fan runs $250-$550.
• Flooring transition: Patching floor where the tub apron sat, $150-$500.
• Shower niche or bench: $150-$500 each.
• Grab bars and safety features: $100-$400 installed.
• Upgraded fixtures: $200-$2,000 depending on brand and features.
• Permit fees: $50-$500.

Ways to Save

To keep a conversion affordable:

1. Keep the shower in the existing tub footprint to avoid moving plumbing.
2. Choose an acrylic or solid-surface system instead of custom tile.
3. Reuse the existing drain and valve location.
4. Skip the frameless glass and use a curtain or framed door.
5. Buy fixtures separately during sales rather than through the contractor markup.
6. Get at least three written quotes and confirm demolition and haul-away are included.
7. Schedule during a contractor’s slower season for better pricing.

A budget-conscious conversion using a prefab kit and existing plumbing can be completed for $1,200-$2,500, while a full custom tiled walk-in easily reaches $9,000 or more.