Typical Florida installed cost for pool heater (heat pump): $3,000–$6,500 — a curated 2026 planning range, not a bid. The most accurate figure for your home comes from a verified local pro (free, below). In Lee County, pool-adjacent permit activity over the last 90 days was in the 50+ band among records we track — public-record aggregates, not a national guess.
A pool that won't warm up comes down to the heater type and what's failed — a heat pump, gas heater, and solar system each fail differently, so the fix starts with knowing which you have.
Plan it — not an emergency.
Common causes:
• A heat pump struggling in cool, humid air, or with a dirty coil or low refrigerant
• A gas heater failing to fire — ignition, gas supply, or a safety sensor
• Poor circulation or a dirty filter starving the heater of the flow it needs to work
• A thermostat, flow sensor, or control board fault stopping the heater from running
• A new-heater quote before circulation, flow, and the simple sensors have been checked
• A gas heater worked on by anyone without the right license — gas and pool water are a serious mix
• No state license number for the equipment and any gas or electrical work
• No diagnosis of why the old heater failed before selling a new one
Why isn't my pool heater working?
First rule out flow — a dirty filter or weak pump starves the heater, and many units simply won't fire without enough water moving. If flow is good, it's usually ignition on a gas unit or a coil or refrigerant issue on a heat pump.
Which pool heater is best for Florida?
Heat pumps are popular in Florida because the warm climate is exactly what they use to heat efficiently; gas heats fastest for occasional use. The right choice depends on how often you swim and your energy costs — worth comparing before replacing.
Pool heater (heat pump): $3,000–$6,500 (typical ~$4,500)
Local permit records we track for Lee County lean toward the "mid-high" cost tier for pool work nearby.
Curated Florida 2026 estimate — installed cost for a typical FL single-family home, not a bid.
Florida licenses this trade at the STATE level (DBPR / CILB (CPC)). Hiring unlicensed for this work is illegal for the contractor — and risky for you: no permit rights, no insurance backing, no recourse.
Work like this often requires a county permit — a legitimate pro pulls it, not you.
Basis: FL Stat. 489 (DBPR state licensing).
Your request goes to a single license-verified Pool pro in your area — you stay anonymous until you tap connect, and we never sell your info.
Covered: Lee · Pinellas · Sarasota · Charlotte · Hillsborough · Manatee | As of 2026-08-05 | Local numbers appear only when the sample is large enough to protect privacy.