A central AC replacement commonly falls around $5,000 to $11,000 in the Twin Cities as of September 2026. Capacity, matched indoor and outdoor equipment, refrigerant line condition, electrical work, condensate routing, duct changes, access, and permit scope account for much of the spread. A good proposal explains the load or sizing basis and includes startup measurements. Reusing a line set or pad may reduce labor, but only if it is compatible and in good condition.
What to ask next
The right next step depends on the system, the urgency, and the building. Keep the model number, symptoms, age, and any previous service notes nearby when you request an estimate. A professional should explain the diagnosis or sizing basis in plain language.
| Cost driver | Why it matters |
|---|---|
| Capacity and system type | Equipment and commissioning requirements vary. |
| Access and existing connections | Labor, venting, electrical, and disposal can move the total. |
| Permits and corrections | Required work should be visible in the written scope. |
Use the callback form to describe the issue, or review HVAC services to find the closest starting point. For urgent loss of heat, see what to do in a cold snap.