Shower to Tub Conversion: Cost, Process, and Considerations

Some bathrooms have only showers when a bathtub would be better. If you have young children, elderly family members, or simply want to relax in a warm bath, converting a shower to a bathtub makes sense. But is it practical? What does it cost? What's involved?

This guide explains the process, costs, and considerations for converting a shower to a bathtub.

Shower to Tub Conversion: Basic Process

Step 1: Demolition — Remove the Existing Shower

Remove the existing shower enclosure, surround, pan, and fixtures. Inspect the walls for water damage or mold. This phase takes 1–2 days and costs $300–$500.

Step 2: Plumbing Work — Relocate Drain and Supply

This is the most complex part of the conversion. The existing shower drain is wall-mounted, but a bathtub requires a floor-mounted drain. The plumber must cut through the floor, relocate the drain line, and ensure proper slope for drainage. The water supply lines must also be relocated from shower height (78 inches) to tub height (48 inches). This work takes 2–3 days and costs $1,200–$1,800.

Step 3: Tub Installation

Install the new bathtub and set it level. Connect plumbing. Install overflow and drain. Cost: $800–$1,500 (tub purchase + labor).

Step 4: Wall Preparation and Tile

Build up the walls around the tub, install waterproof substrate, and tile. A tub surround typically requires tile about 48 inches high to prevent water damage. This takes 4–5 days and costs $1,500–$2,500 depending on tile choice.

Step 5: Finishing

Install trim, fixtures (tub faucet, shower head if combo unit), and caulk. Paint walls. Final cleanup. Takes 2–3 days.

Luxury bathroom with separate tub and shower fixtures

Complete Cost Breakdown

Tier 1: Basic Conversion — $3,000–$4,000

• Demo and removal: $300–$500
• Plumbing (drain relocation + supply): $1,000–$1,200
• Standard acrylic tub: $600–$900
• Installation: $400–$600
• Tile and surround: $700–$800

Tier 2: Standard Conversion — $4,000–$5,000

• Demo and removal: $300–$500
• Plumbing work: $1,200–$1,500
• Quality acrylic or cast iron tub: $1,000–$1,500
• Installation: $500–$700
• Quality tile and surround: $1,000–$1,300

Tier 3: Premium Conversion — $5,000–$6,500+

• Demo and removal: $400–$600
• Plumbing work: $1,500–$2,000
• Premium or luxury tub: $1,500–$3,000
• Installation: $600–$900
• Custom tile and surround: $1,500–$2,000

Tub Style Options for Your Conversion

Standard Alcove Tub

Fits in a standard 5-foot alcove. Budget-friendly. Most common option. Cost: $600–$1,200.

Soaking Tub

Deeper than standard for immersion bathing. Fits standard spaces but requires more water. Cost: $1,200–$2,000.

Freestanding Tub

Luxury centerpiece. Requires floor support. More complex installation. Cost: $1,500–$3,500+ for tub, plus additional plumbing.

Combination Tub/Shower

Have both tub and shower in one space. More flexible. Cost: $1,500–$2,500 for tub, plus shower enclosure.