Repair first, then a clear recommendation
Many Fort Myers repair calls start the same way: the pool is not reaching the set temperature, the unit short cycles, a heat pump ices over, or a gas heater will not stay lit. Those symptoms can be a sensor, a flow switch, a capacitor, a control board, a gas valve, or a compressor that is at the end of its life. A good technician should test the unit, tell you what failed, and give you a repair figure next to a replacement figure when the equipment is older.
If you already know you want a new system, see pool heater installation and replacement and our guide to heat pumps vs. gas in Florida.
Fort Myers and the rest of Lee County
Fort Myers sits just across the river from Cape Coral, with the same Southwest Florida climate: a long swim season, mild winters, and occasional cool nights that make a heater worthwhile. This page is for Fort Myers itself. We also welcome requests from nearby North Fort Myers, Lehigh Acres and Estero, and from Cape Coral.
Permit rules can differ by city. Ask the contractor what the City of Fort Myers or Lee County requires for a repair versus a full replacement, and confirm it with the building office if you want a second source.
When replacement makes more sense
If the heater is already past a typical service life, uses hard-to-find parts, or needs a major repair close to the cost of a new unit, replacement is often the cleaner path. National cost guides in the HomeAdvisor style often put a typical pool heater replacement around $3,000, but that is not a Fort Myers quote. Read what drives replacement cost in Southwest Florida.