5 ton HVAC cost in Florida.
A 5 ton system handles 60,000 BTU/hr and fits most Florida homes between 2,400 and 3,200 square feet. Best for larger Florida homes, high-ceiling great rooms, poor-envelope 1970s/80s builds that need extra capacity.
$16K–$32K
2,400–3,200 sqft
60,000 BTU/hr
Optimum
What 5 ton actually costs.
14.3 SEER2
Entry
$15,990
The cheapest path to a new 5 ton system. Reliable cooling, basic warranty. Emergency replacement pick.
18 SEER2
Typical
$25,490
or $284/mo · 120 mo
5 ton Premier is the most common pick in Florida — variable-speed compressor, best humidity control, 10-year parts+labor.
21 SEER2
Top
$31,990
Maximum efficiency, whole-home air purification, multi-zone ready. Best-in-class 10-year warranty.
A 2,900 sqft 5-bed Miami home with 10-foot ceilings and original 1985 single-pane windows.
The 500-sqft-per-ton rule is often wrong.
Tonnage depends on more than square footage. For Florida specifically: insulation grade, window type (single vs double pane), ceiling height, sun exposure (west-facing glass kills comfort), internal heat loads (kitchen appliances, electronics), and duct leakage all shift the correct answer by 0.5 to 1.5 tons.
Short-cycles on/off, never runs long enough to pull humidity out of the air. Florida result: sticky, musty, worse comfort than the old system you're replacing.
Runs continuously on hot afternoons and still can't hit the thermostat setpoint. System dies 3–5 years early from the abuse. Energy bills spike.
Don't guess. Let AIRA size it.
Five-minute consultation with the AI comfort consultant. Manual J load calc factors in your insulation, windows, ceiling height, and sun exposure. Your answer in minutes, not days.
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