California-only directory · CSLB license-matched
Find a licensed pool heater & heat pump pro in California
2,807 California-licensed swimming pool contractors across 48 counties, each matched to an active CSLB license. Cool nights and winters cut the swimming season short, on the coast and inland alike. Find someone licensed to install or fix your heater, and confirm the heater types they work on. Free for homeowners.
Try Los Angeles, Orange, San Diego, Riverside
- License-matchedMatched to California CSLB records
- Free for homeownersNo fees, no obligation
- California-only48 counties · 480 cities
- 8 heater specialistsHighlighted and listed first
How it works
Three steps to a warmer pool
Search your county
Pick your county or city to see licensed swimming pool contractors based near you, heater specialists first.
Check the license
Every listing shows its California CSLB license number, classifications and expiration date.
Compare free quotes
Tell us the heater you want and hear from up to three licensed contractors. No obligation.
Browse by service
Heaters, heat pumps, solar and service
Pool Heater & Heat Pump Specialists
Licensed businesses whose name says pool heating, pool heaters or heat pumps.
Find contractorsSolar Pool Heating
Licensed businesses whose name mentions solar, for solar pool heating collectors.
Find contractorsPool Equipment Service & Heater Repair
C-53 swimming pool contractors whose name mentions service, repair or maintenance.
Find contractorsSwimming Pool Contractors
CSLB C-53 swimming pool contractors, who build and remodel pools and spas.
Find contractorsCommercial & Aquatic Pool Contractors
C-53 contractors whose name mentions commercial or aquatic work.
Find contractorsSpas & Hot Tubs
Licensed contractors whose name mentions spas or hot tubs.
Find contractorsBrowse by county
From the Oregon line to San Diego
Start with a popular region, or tap any county on the map.
Los Angeles
648 listed- Los Angeles CountySylmar · Los Angeles · Woodland Hills
Inland Empire
585 listed- Riverside CountyIndio · Riverside · Temecula
- San Bernardino CountyRancho Cucamonga · Fontana · Ontario
Orange County
326 listed- Orange CountyAnaheim · Santa Ana · Huntington Beach
San Diego
242 listed- San Diego CountySan Diego · El Cajon · Escondido
Sacramento Region
147 listed- Sacramento CountySacramento · Rancho Cordova · Orangevale
- Placer CountyRoseville · Rocklin · Loomis
East & South Bay
182 listed- Santa Clara CountySan Jose · Campbell · Gilroy
- Contra Costa CountyBrentwood · Danville · Walnut Creek
- Alameda CountyLivermore · Newark · Pleasanton
Featured contractors
Featured pros
Featured spots are available
Licensed swimming pool contractors can appear here and at the top of their county pages.
Pool heating season: fall through spring
Book heater work before the nights turn cold.
Coastal fog, inland valley nights and desert winters all cool a pool in different ways. Our guide covers why pools cool off, covers that hold heat, and cold-night precautions for equipment.
Homeowner guides
Choose the right heater. Hire well.
Pool Heat Pump vs. Gas Heater (and Solar)
How heat pumps, gas heaters and solar pool heating work, and the trade-offs in heat-up speed, running cost and weather.
Read guideHow to Size a Pool Heater
The factors that set heater size (surface area, temperature rise, wind and covers), BTU basics and solar collector sizing.
Read guideCalifornia Pool Heating Season
Why California pools cool off, how coastal, inland and desert areas differ, using a cover to hold heat, and cold-night precautions.
Read guideHiring a Licensed Pool Contractor in California
What a CSLB C-53 Swimming Pool license covers, how to use the Instant License Check, permits and written contracts.
Read guideHow listings are chosen
Every business listed here appears in the California Contractors State License Board (CSLB) public license list with an active, unexpired license and a California address, as of October 2026. Most hold a C-53 Swimming Pool license; we also include C-46 Solar and C-36 Plumbing contractors whose business name clearly mentions pools, spas, heaters or heat pumps. We don't claim every listed business installs heaters: service tags come only from the license class or business name, so confirm that a contractor installs or services the heater type you want. We do not publish ratings, reviews or phone numbers.
More about our data