How much does air conditioner replacement cost?
Replacing a central AC unit depends on size (tonnage) and efficiency (SEER2). Sometimes just the outdoor condenser fails; a matched coil replacement costs more but keeps efficiency up.
| Typical range | $3,900 – $9,000 |
| Most common | $5,900 |
| Priced | installed |
| DIY-friendly? | No — best left to a licensed pro |
What changes the price of air conditioner replacement
- Size (tonnage) for your home
- Efficiency rating (SEER2)
- Condenser only vs. matched coil replacement
- Line-set and pad work
Estimate your cost
Adjust the quality and scope, or compare with other projects.
Full typical range for this project. Adjust the quality/scope for a tighter estimate. The only way to know your real price is to get quotes from local contractors.
- ›Size (tonnage) for your home
- ›Efficiency rating (SEER2)
- ›Condenser only vs. matched coil replacement
- ›Line-set and pad work
National ballpark ranges for the US. Not a quote — actual prices vary by region, home and contractor.
Air conditioner replacement cost — frequently asked questions
How much does it cost to replace an AC unit?
A central air conditioner replacement runs about $3,900–$9,000, near $5,900 typical. Replacing the matched coil too, or going high-efficiency, adds to it.
Related project costs
This is general US cost information, not a quote. Actual prices depend on your region, home, materials and contractor — always get quotes from licensed local pros before you commit.