California plumbing market report
A snapshot of the plumbing market in California: who's licensed, where they work, climate context, and what homeowners typically pay. All data from official US public sources cited below.
State overview
California has approximately 13,219k households (US Census ACS 2022) and is in a varied (marine to hot-dry) climate zone (DOE/NOAA classification). The state employs roughly 53,520 plumbers, pipefitters, and steamfitters per the BLS Occupational Employment Statistics for code 47-2152, or about 4.0 pros per 1,000 households.
Licensing
Plumbing pros in California are typically regulated by the California Contractors State License Board (CSLB). Before hiring, verify the contractor's license number, that the license is active and in good standing, and that the licensee is bonded and insured to operate in California. License lookup is typically free at the board's public website.
Top 5 cities by listed pros
- Los Angeles — 22 listed
- San Francisco — 18 listed
- San Diego — 14 listed
- Fresno — 8 listed
- Palo Alto — 5 listed
Seasonal demand pattern
Demand year-round; spikes in summer from sediment-fouled water heaters and irrigation leaks.
Typical cost range in California
Based on national HomeAdvisor and Angi 2024-2026 averages adjusted to California cost-of-living, a typical water heater install/replace in California runs around $1,770. See the full cost calculator suite for service-by-service ranges. Always get a written quote before committing to work.
Find a verified pro in California
Browse our California state hub or jump to a city: Los Angeles, San Francisco, San Diego.
See all California plumbing pros →Data sources. Employment: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2023 (bls.gov/oes), occupation code 47-2152 (Plumbers, Pipefitters, and Steamfitters). Households: U.S. Census Bureau American Community Survey 2022 1-year estimates (census.gov/acs). Climate zone: U.S. Department of Energy Building America Climate Zones (energy.gov) / NOAA National Centers for Environmental Information (noaa.gov). Licensing: California Contractors State License Board (CSLB). Cost ranges: HomeAdvisor 2024 True Cost Reports (homeadvisor.com), Angi 2024 cost guides (angi.com). All figures are estimates; verify before relying on for any decision.