Bathroom Remodel Cost in California
Locally calibrated hire vs. DIY cost data for bathroom remodel projects in California. Cited sources, permit requirements, and a full build guide, free.
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HIRE A PRO
$9,500–$28,000
Fully installed, labor + materials
DIY COST
$3,500–$10,000
Materials + rentals, your labor free
Complex project, structural or code-critical work involved.
RSMeans · Angi · HomeGuide · Submitted Quotes · Government Data · Submitted Quotes (n=52)
How we got these numbers
National benchmark costs from RSMeans, Angi, Fixr, and HomeGuide are adjusted for California using two federal datasets: the Bureau of Economic Analysis Regional Price Parity (RPP) index and the Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics. California's RPP is 1.2 (national baseline = 100) and its BLS labor adjustment factor is 1.22. Higher RPP means goods and services cost more relative to the national average; the BLS factor scales contractor labor rates to local wage levels. We blend these two adjustments, weighted 40% RPP, 60% BLS labor, to produce the ranges shown above.
adjusted_cost = national_benchmark × (0.4 × RPP/100 + 0.6 × bls_labor_adj)
RPP(California) = 1.2 · BLS adj = 1.22
What's included
| Item | Qty | Unit Cost | Subtotal |
|---|---|---|---|
| Vanity with sink (30 in) | 1 | $420 | $420 |
| Vanity faucet | 1 | $95 | $95 |
| Toilet (comfort height, dual flush) | 1 | $280 | $280 |
| Shower tile (12×24 in porcelain) | 80 sq ft | $5.5 | $440 |
| Floor tile (12×12 in mosaic) | 45 sq ft | $4.5 | $202 |
| Cement board (3×5 ft sheets) | 10 | $18 | $180 |
| Tile adhesive + unsanded grout | 2 sets | $40 | $80 |
| Shower valve + trim kit | 1 | $185 | $185 |
| Shower door (frameless 36 in) | 1 | $350 | $350 |
| Exhaust fan (110 CFM) | 1 | $75 | $75 |
| Paint + primer (moisture-resistant) | 1 gallon | $48 | $48 |
| Materials Total | $2,355 | ||
Tools you'll need
See the tools we'd buy →TOOLS YOU PROBABLY OWN
- Notched trowel (1/4×3/8 in)
- Grout float
- Level (4 ft)
- Drill / impact driver
- Oscillating multi-tool
- Caulk gun
- Pipe wrench
TOOLS TO RENT OR BUY
Tile saw (wet saw)
Rent for ~$60/day; essential for straight cuts on porcelain.
Build sequence
- 1
Shut off water supply; remove toilet, vanity, and existing tub/shower surround.
- 2
Inspect subfloor and walls for moisture damage; replace any soft or moldy material.
COMMON MISTAKE
Tiling over damaged cement board or drywall leads to tile failure within 2–3 years.
- 3
Install cement board on all wet-area walls; tape and thinset seams.
- 4
Apply waterproofing membrane (RedGard or Schluter Kerdi) in shower area.
- 5
Lay out tile pattern dry before setting; start from the center of the focal wall.
- 6
Set wall tile from bottom up; back-butter large-format tiles.
- 7
Install floor tile; use a level to check for lippage.
- 8
Grout tile after 24 hours; seal grout after 72 hours.
- 9
Install shower valve, shower door, and fixtures.
- 10
Set toilet (new wax ring), install vanity, connect plumbing.
- 11
Install exhaust fan, lighting, mirrors, and accessories.
Permits and code requirements
PERMIT REQUIREMENTS
California requires permits for any bathroom remodel involving plumbing, electrical, or structural work. The California Plumbing Code and Title 24 energy standards apply. Los Angeles and San Francisco have additional local amendments. Unpermitted work is a significant liability at resale in California's disclosure-heavy market.
PERMIT THRESHOLD
Any work involving plumbing, electrical, or structural changes
CODE REFERENCE
https://www.dgs.ca.gov/BSC/CodesDisclaimer: Always verify permit requirements with your local building department before starting work. Requirements vary by municipality and are updated periodically.
Frequently asked questions
NEXT STEPS
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UPDATED JUNE 2026