Skip to content
CA Pool Heater Pros

288 licensed service & repair contractors · 30 counties

Pool heater repair in California

Heater not firing, showing an error code or just not keeping up? These businesses are CSLB-licensed C-53 swimming pool contractors whose business name mentions service, repair, maintenance or pool care. Most heater problems are a part that can be fixed. If the heat exchanger or compressor has failed, replacing the heater can cost less over time. Compare licensed contractors near you and request free quotes, with no obligation.

Usually worth repairing

  • Heater is fairly young and has worked well
  • Igniter, flame sensor, pressure or flow switch fault
  • Thermostat sensor, control board or fan motor
  • Error code you can read off the display

Often time to replace

  • Cracked, leaking or badly scaled heat exchanger
  • Failed heat pump compressor or major refrigerant leak
  • Heavy rust or corrosion on the cabinet and burners
  • Repair quote is a big share of a new heater

Before you call

  • Note the brand, model and any error code
  • Say whether it is gas, heat pump or solar
  • Check the pump is running and the filter is clean
  • Ask about diagnostic fees and parts warranties

Not sure which way to go? Read our pool heater repair vs. replace guide.

Choose your county

Top cities for pool heater repair

Heater specialists who also do service

These licensed businesses name pool heating in their business name.

Pool heater repair in California

Many California pools and spas use natural gas heaters, while heat pumps and solar are common in warmer inland areas. Gas heaters can lose efficiency from scale and soot, and coastal air can corrode cabinets, burners and coils over time.

California cities and counties usually require a permit to replace a gas pool heater or add an electrical circuit for a heat pump. Ask your contractor who pulls the permit and check their CSLB license before work starts.

Want every pool equipment service company, not only by county? Browse the full pool equipment service & heater repair list.

Frequently asked questions

Should I repair or replace my pool heater?

Repair usually makes sense when the heater is fairly young and the fault is a part like an igniter, sensor, pressure switch, fan motor or control board. Replacement is often the better call when the heat exchanger is cracked or badly scaled, a heat pump compressor has failed, or the heater is near the end of its life and needing repeat repairs. Ask the contractor to put both prices in writing so you can compare. Our repair vs. replace guide covers the signs.

Which pool heater brands do these contractors work on?

Common pool heater and heat pump brands include Pentair, Hayward, Raypak, Jandy and AquaCal, among others. Not every company services every brand or heater type, so tell them the brand, model and whether it is gas, heat pump or solar when you ask for a quote. A photo of the rating plate helps.

Is there a diagnostic or service call fee?

Many service companies charge a trip or diagnostic fee to find the fault. Some apply it to the repair if you go ahead. Ask what the fee is, what it includes and whether it is credited toward the repair before you book. We do not set or collect any fees.

Do I need a permit for a pool heater repair?

California cities and counties usually require a permit to replace a gas pool heater or add an electrical circuit for a heat pump. Ask your contractor who pulls the permit and check their CSLB license before work starts. Simple part swaps usually don't need one, but rules vary by city and county.

How do I find a licensed pool heater repair contractor in California?

Every business on these pages is matched to a California CSLB license record. Pick two or three, ask whether they work on your heater type and brand, and check the license before work starts. See our hiring guide or request free quotes.