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CA Pool Heater Pros

292 licensed businesses

Pool Equipment Service & Heater Repair in California

These California-licensed swimming pool contractors mention service, repair, maintenance or pool care in their business name. They are a good first call for a heater that has stopped working or needs replacing, but not every service company works on every heater type, so ask before you book.

Why choose this

  • Service-focused companies are often the quickest option when a heater stops working.
  • Many offer ongoing maintenance, so one company can look after the pump, filter and heater.
  • Can tell you whether a repair or a replacement makes more sense.

Things to consider

  • Not every service company works on every heater type or brand.
  • Electrical or gas supply work may need another licensed trade.
  • Parts availability can affect repair timelines for older heaters.

Questions to ask

  • The contractor's CSLB license number, so you can confirm it on CSLB's Instant License Check.
  • Who pulls the permit (and any separate electrical, plumbing or gas permit) and whether permit fees are included.
  • The heater make, model and output, and how they sized it for your pool. Ask them to show the calculation.
  • Warranty terms: manufacturer warranty on the equipment and the contractor's own warranty on labor.
  • Whether they work on your heater brand and type (heat pump, gas or solar).
  • A written diagnosis and price for repair vs. replacement.
  • Whether there is a trip or diagnostic fee, and whether it is credited toward the repair.

Pool Equipment Service & Heater Repair by county

Heater specialists with this license type (3)

These businesses also name pool heating or solar pool heating. Browse the other 289 by county above.

Frequently asked questions

My pool heater stopped working. Repair or replace?

Ask a licensed contractor for a written diagnosis that covers the failed part, the repair price and the replacement option. Age, parts availability and warranty status all matter. Get 2–3 written quotes for a replacement.

Why are these businesses tagged "service & repair"?

Because their business name mentions service, repair, maintenance or pool care. The tag comes only from the name; every business here holds an active CSLB license. Ask each one which heater types they work on.