HVAC Replacement cost breakdown
At a mid-range, national-average baseline, a typical hvac replacement project is estimated at $5,000 to $12,500. The table below breaks the cost down so you can see where your project is likely to land.
| System type | Typical installed cost | Notes |
|---|---|---|
| Furnace only | $3,500 to $8,000 | Gas or electric |
| Central AC only | $4,000 to $9,000 | Condenser + coil |
| AC + furnace (full system) | $7,000 to $15,000 | Most common replacement |
| Heat pump | $6,000 to $18,000 | Heats and cools |
| Ductless mini-split | $5,000 to $16,000 | Per multi-zone setup |
What drives hvac replacement cost
- System type: a single AC or furnace is cheaper than a full split system or heat pump.
- Efficiency rating: high SEER2 and variable-speed equipment costs more upfront but lowers bills.
- Home size and the required system capacity, measured in tons or BTUs.
- Ductwork: replacing or adding ducts is a major add-on.
- Whether the job is a like-for-like swap or a change in fuel or system type.
- Regional labor rates, permits, and refrigerant rules.
Key cost factors
Equipment versus install
Roughly half of an HVAC job is the equipment and half is labor, removal, and materials. A more efficient unit raises the equipment side but can pay back through lower energy bills over its life.
Sizing matters
An oversized or undersized system wastes money and wears out faster. A good contractor runs a load calculation (Manual J) rather than just matching the old unit size.
Ductwork is the hidden cost
If your ducts are leaky, undersized, or missing, adding or replacing them can add several thousand dollars but is often necessary for the new system to perform.