HVAC System Replacement Cost in Melbourne, Florida
Expect to pay $9,600 to $20,900 for full HVAC system replacement in Melbourne, FL. Most homeowners end up near $15,800, depending on the equipment tier and how much of the old setup can be reused.
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Melbourne Weather and HVAC Load
In a normal year, Melbourne racks up 501 heating and 3,401 cooling degree days (NOAA 1991-2020 normals). Cooling carries most of the load, which is why compressors and condenser fan motors wear out faster here than in northern cities. A normal year brings 2 nights at or below freezing and 76 days over 90°F.
| Heating degree days / year | 501 |
|---|---|
| Cooling degree days / year | 3,401 |
| Nights at or below 32°F | 2 |
| Days above 90°F | 76 |
| Average low / high | 63.4°F / 82.4°F |
Melbourne Housing Stock
Half the homes in Melbourne were built before 1984 (Census ACS median), so the typical house is about 42 years old. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Melbourne has roughly 22,000 owner-occupied homes, or 60.3% of households. The median home value is $272,900, and median household income is $64,504. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 10 hail days and 41 days with damaging thunderstorm winds in Brevard County. The largest hail reported was 2 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage. Brevard County also had 8 tornado days in that period. In Melbourne, 22.6% 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
- An old R-22 AC paired with an aging furnace
- Some rooms are uncomfortable, and the energy bills are high
- Both the heating and cooling equipment are 15 years old or more
What Moves the Price
- Efficiency ratings: SEER2, AFUE and HSPF2
- Duct repair or replacement
- Equipment sized to the house and climate
- Furnace plus AC, or heat pump plus air handler
- Permits and electrical work
- Thermostat and zoning upgrades
We raised the national figures about 13% for Melbourne 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
- A load calculation and system design
- New, matched heating and cooling equipment
- Startup, testing and warranty registration
- Duct connections and sealing
- Removing the old equipment
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). Expect the contractor to pull a mechanical permit for a replacement job in Melbourne. If a bidder suggests skipping it, move on. Also ask for a 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
- Ask for a duct leakage test. Leaky ducts can lose 20 to 30% of what the system puts out.
- Replacing both pieces at once usually costs less than two separate jobs a few years apart.
- Make every bidder quote the same efficiency ratings, or the prices won't compare.
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HVAC System Replacement Questions from Melbourne Homeowners
How much is full HVAC system replacement in Melbourne?
Plan on $9,600 to $20,900, with most jobs near $15,800. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule full HVAC system replacement in Melbourne?
Between late fall and early spring. With 76 days over 90°F, Melbourne contractors are booked solid all summer, and off-season jobs are easier to schedule and negotiate.
How often should an HVAC system be replaced?
Most systems get replaced every 15 to 20 years. AC units and heat pumps usually wear out before gas furnaces do.
Can I replace only the AC and keep my furnace?
Yes, as long as the indoor coil and blower work with the new AC. A mismatched system loses efficiency and can void the warranty.
HVAC System Replacement Near Melbourne
- Palm Bay $9,500 to $20,700
- Deerfield Beach $9,600 to $20,900
- Town 'n' Country $10,100 to $22,000
- Alafaya $11,600 to $25,300
- Daytona Beach $8,800 to $19,100
- North Port $10,700 to $23,200
- Homestead $10,200 to $22,100
- Fort Myers $10,200 to $22,200
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Melbourne Weather Office; NOAA Storm Events Database 2020-2025, Brevard County. Prices are our estimates, not contractor quotes. Updated 2026.