Replacing a central air conditioning system in a typical Houston home usually costs somewhere between the high four figures and low five figures, depending on tonnage, efficiency rating and whether the furnace or air handler is replaced too.
These are planning ranges; get written quotes from licensed contractors. See our Top AC Repair And HVAC Companies In Houston.
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| System | Typical Installed Range |
| 3-ton condenser and coil, standard efficiency | $6,500 to $9,500 |
| 4-ton split system, mid efficiency | $8,500 to $12,500 |
| 5-ton high-efficiency or variable-speed system | $12,000 to $18,000+ |
| Heat pump system | $8,000 to $16,000 |
| Ductwork replacement (added) | $3,000 to $8,000 |
If the system is over 12 to 15 years old, needs a compressor or coil, or still uses R-22 refrigerant, replacement usually makes more sense. A rule of thumb: if the repair cost times the system’s age exceeds the cost of a new system, replace it.
Utility programs and federal tax credits for high-efficiency heat pumps can offset part of the cost; ask your contractor what currently applies. Replacing in spring or fall, before a summer breakdown, gives you time to compare quotes.
Insist on a proper load calculation, compare efficiency against your expected years in the home and get at least two written quotes.
Need heating or AC help in Houston now?
Call to get connected with an available local HVAC technician for AC repair, furnace repair or a new system.
This line is run by our call partner and connects you with an available HVAC company in your area. It is not the phone line for any company listed on this page.