Furnace Replacement Cost in Fort Myers, Florida

Our 2026 estimate for furnace replacement in Fort Myers, FL is $2,800 to $6,700. That puts Fort Myers 13% below the national average.
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Fort Myers Weather and HVAC Load
NOAA's 1991-2020 climate normals put Fort Myers at 251 heating degree days and 4,045 cooling degree days per year. Cooling carries most of the load. Heating equipment gets light use, so a furnace here often outlasts the AC it's paired with. Freezing nights are rare here, but a normal year brings 120 days over 90°F.
| Heating degree days / year | 251 |
|---|---|
| Cooling degree days / year | 4,045 |
| Nights at or below 32°F | 0 |
| Days above 90°F | 120 |
| Average low / high | 65.8°F / 84.9°F |
Fort Myers Housing Stock
Half the homes in Fort Myers were built before 2001 (Census ACS median), so the typical house is about 25 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Fort Myers has roughly 18,000 owner-occupied homes, or 49.4% of households. Homes here have a median value of $351,600 and households a median income of $62,160. Those two numbers drive the labor adjustment in our estimate.
Between 2020 and 2025, NOAA's Storm Events Database logged 7 hail days and 13 days with damaging thunderstorm winds in Lee County. The largest hail reported was 1 inches across. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost. Lee County also had 7 tornado days in that period. In Fort Myers, 22.2% of residents are 65 or older. For older adults, a house with no heat in January or no AC during a heat wave is a medical risk. Mention it when you call, since many companies put those calls first.
When Replacement Makes Sense
- A tech found a cracked heat exchanger, or the CO detector has gone off
- Some rooms stay cold, the burner short-cycles, or the ignitor keeps failing
- Gas or electric bills keep climbing even though usage hasn't changed
- A repair quote runs past a third of the cost of a new unit
What Moves the Price
- Condition of the existing ductwork and any changes it needs
- AFUE rating: a basic 80% unit vs. a 96% condensing furnace
- BTU size, which should come from a Manual J load calculation
- Permit and inspection fees, which the local building department sets
- Single-stage, two-stage or modulating gas valve
- New PVC venting if you move to a condensing model
We lowered the national figures about 13% for Fort Myers using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- The permit and the manufacturer warranty registration
- The new furnace, filter rack and thermostat wiring
- Combustion and safety tests
- Removing and hauling away the old furnace
- Gas line and vent connections
Florida Permits, Efficiency Rules and Rebates
Florida is in the DOE's Southeast region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up). Plan on a mechanical permit for most replacements in Fort Myers; the contractor normally pulls it. Before you sign, ask each bidder for their Florida license or registration number and proof of insurance. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.
Before You Hire
- Look up utility rebates on 95%+ AFUE units before you buy.
- Replace it in early fall if you can. A no-heat emergency in January costs more and leaves you fewer choices.
- Ask for the Manual J load calculation in writing. Oversized furnaces are the most common mistake we see.
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Furnace Replacement Questions from Fort Myers Homeowners
How much is furnace replacement in Fort Myers?
Plan on $2,800 to $6,700, with most jobs near $4,900. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule furnace replacement in Fort Myers?
Between late fall and early spring. With 120 days over 90°F, Fort Myers contractors are booked solid all summer, and off-season jobs are easier to schedule and negotiate.
Is a high-efficiency furnace worth it?
In cold climates, a 95%+ AFUE furnace usually earns back the price difference in lower gas bills. Where winters are mild, the payback can take a very long time.
How long does a furnace replacement take?
A straight swap is usually done in one day, somewhere between 4 and 10 hours. Moving to a condensing furnace with new PVC venting can add a few more.
Furnace Replacement Near Fort Myers
- Sunrise $2,800 to $6,900
- North Port $2,900 to $7,100
- Deltona $2,700 to $6,700
- Alafaya $3,200 to $7,700
- Plantation $3,100 to $7,600
- Deerfield Beach $2,600 to $6,400
- Boca Raton $3,600 to $8,700
- Melbourne $2,700 to $6,500
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Fort Myers Page Field Airport; NOAA Storm Events Database 2020-2025, Lee County. Prices are our estimates, not contractor quotes. Updated 2026.