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FL Pool Heater Pros

55 licensed contractors

Pool heater & pool/spa contractors in Monroe County

This page lists 55 licensed pool & spa contractors based in Monroe County, including businesses in Key West, Key Largo, Marathon. Each listing is matched to a Florida DBPR license that was active and unexpired when we last updated our data.

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Hiring in Monroe County

Not every pool contractor installs every type of heater. Before hiring, confirm that the contractor installs or services the heater you want (heat pump, gas or solar), get 2–3 written quotes, check the license on the DBPR website and ask who will pull the permit.

Frequently asked questions

How do I check that a Monroe County pool contractor is licensed?

Search the contractor's name or license number on the Florida DBPR license lookup. Look for a current, active status and make sure the business name on your contract matches the licensed business.

Can a pool service company install or repair my pool heater?

Florida's pool/spa contractor licenses (commercial, residential and servicing) all include pool heater work in their scope under section 489.105, Florida Statutes. Ask each contractor whether they install and service the specific heater type and brand you want. See our hiring guide.

Do I need a permit to install a pool heater in Monroe County?

Rules vary by city and county. Installing new equipment often involves building, electrical or gas permits, so check with your local building department. Your licensed contractor normally applies for the permit; ask for the permit number and keep the final inspection record.

Heat pump, gas or solar: which is best?

Each has trade-offs. Gas heaters heat quickly and hold temperature in any weather; heat pumps usually cost more up front but have lower running costs; solar has low operating costs but depends on sunshine. Read our heat pump vs. gas guide.