Bathroom Remodel Cost in Costa Mesa (2026 Price Guide)
In Costa Mesa, a guest bathroom renovation costs about $16,000–$38,000 in 2026 and a master bath $30,000–$75,000. A half bath runs $7,000–$18,000, and a tub-to-shower conversion about $12,000–$26,000.
Renovation totals
| Bathroom | Typical cost |
|---|---|
| Half bath | $7,000–$18,000 |
| Guest bath | $16,000–$38,000 |
| Master bath | $30,000–$75,000 |
Individual projects
| Project | Typical installed cost |
|---|---|
| Tub-to-shower conversion | $12,000–$26,000 |
| Shower pan replacement | $3,500–$9,000 |
| Vanity with quartz top | $2,200–$8,500 |
| Porcelain tile floor | $2,000–$6,500 |
| Toilet replacement | $550–$1,400 |
Costa Mesa-specific costs to plan for
- Replacing galvanized supply lines found in 1950s–60s walls
- Adding a ducted, humidity-controlled exhaust fan (required by California code in remodeled baths)
- Repairing subfloor damage around old tubs and toilets
- Cast-iron tub removal
Updated November 2026 · Typical installed price ranges, not quotes.
Frequently Asked Questions
Why do older Costa Mesa homes cost more to renovate?
Opening walls often reveals old plumbing or water damage that should be fixed while everything is exposed.
What's a realistic budget for a basic guest bath?
Around $16,000–$22,000 for a straightforward update with mid-range finishes.
Your new bathroom starts with a free quote.
In-home quotes across Costa Mesa and West Orange County · Mon–Sat 9–5