How much does a new HVAC system cost?
A new HVAC system typically costs $5,000 to $11,000 installed for a full central AC and furnace when the existing ductwork can be reused, rising to $7,000 to $16,000 with new ducts. Whole-system pricing works out to roughly $3 to $6 per square foot, so a 2,000 sq ft home averages about $6,000 to $12,000. The big drivers are the system type, home size, efficiency rating, and whether ductwork needs work.
HVAC cost by system type (installed)
| System | Typical installed cost | Best for |
|---|---|---|
| Central air conditioner | $2,500 – $7,500 | Cooling with an existing furnace |
| Furnace | $2,000 – $5,400 | Gas or electric heating |
| AC + furnace (full system) | $5,000 – $11,000 | Most common full replacement |
| Heat pump | $3,800 – $8,200 | Heating + cooling, mild climates |
| Ductless mini-split | $3,000 – $10,000 | Homes without ductwork, additions |
What drives HVAC cost up or down
- System type & size: bigger homes need more capacity (tons), and full systems cost more than a single unit.
- Efficiency: higher SEER2 / AFUE ratings cost more up front but lower running costs.
- Ductwork: reusing good ducts is cheapest; replacing or adding ducts adds thousands.
- Fuel & type: heat pumps, gas furnaces, and electric systems price differently.
- Add-ons: a new thermostat, zoning, air handler, or line-set work raise the total.
- Location: labor rates and permit costs vary by region.
How to use this estimate
Use the range to budget, then get quotes from licensed local HVAC contractors — real pricing depends on a proper load calculation, your duct condition, and current equipment prices. You can request free quotes from local pros right in the tool above.