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BathroomIntermediate15 min read

Bathroom Remodel Step-by-Step Guide

Everything you need to know about remodeling a bathroom — demolition, plumbing, waterproofing, tile, fixtures, and finishing touches.

Bathroom Remodel Overview

A full bathroom remodel typically takes 3-6 weeks and costs between $10,000 and $35,000 depending on size, scope, and material selections. The project follows a specific sequence that cannot be reordered without causing problems.

Phase 1: Demolition and Rough-In (Week 1)

Demolition removes existing fixtures, tile, and sometimes drywall. This is when surprises appear — water damage, outdated plumbing, or inadequate subflooring. Budget 2-3 days for demo and inspection.

Rough-in plumbing and electrical follow. Moving a toilet, shower, or vanity location significantly increases costs because supply lines, drains, and vent stacks must be relocated. If possible, keep fixtures in their current locations to save $2,000-$5,000.

Phase 2: Waterproofing and Substrate (Week 2)

Waterproofing is the most critical step in any bathroom remodel. Failures here lead to mold, structural damage, and costly repairs. Modern systems like Schluter DITRA or liquid-applied membranes provide reliable waterproofing when installed correctly.

Cement backer board (Durock, HardieBacker) replaces standard drywall in wet areas. Never use regular drywall or green board in shower enclosures — these materials will eventually fail in high-moisture environments.

Phase 3: Tile Installation (Week 3)

Tile sets the visual tone of the bathroom. Large-format tiles (12x24 or larger) create a modern, spacious feel and have fewer grout lines to maintain. Smaller mosaic tiles work well as accents and on shower floors where more grout lines improve traction.

Professional tile installation costs $8-$15 per square foot for labor alone. Complex patterns (herringbone, chevron) add 20-30% to labor costs.

Phase 4: Fixtures and Finishing (Week 4-5)

Vanity installation, toilet setting, shower glass, mirrors, lighting, and paint complete the project. Allow adequate time for grouting to cure before installing glass enclosures.

Pro Tips

  • Order all materials before demolition begins to avoid delays
  • Use a single contractor for the entire project rather than coordinating multiple trades yourself
  • Get estimates from verified contractors on ModuBlox to compare pricing transparently
  • Related Topics

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    Bathroom Remodel Guide 2026: Step-by-Step Process | ModuBlox