A new central AC system is priced by more than the outdoor condenser. The indoor coil, line set, controls, drainage, electrical work, permits and commissioning all matter.
Central AC installation cost
A broad national planning range for central AC replacement is about $4,500 to $9,500, with premium equipment, high-cost labor markets, difficult access or major duct/electrical changes pushing the total higher.
Efficiency and equipment tiers
Higher-efficiency and variable-capacity systems usually cost more upfront. Compare the actual model numbers and certified efficiency ratings, not marketing labels such as “high efficiency.”
What can add to installation cost
Electrical upgrades, new refrigerant line sets, condensate pumps, drain modifications, air-quality accessories, zoning, new ductwork, crane access and code corrections can all increase the project scope.
Get apples-to-apples quotes
Ask every bidder to quote the same basic scope. If one price is far lower, check whether it omits permit, thermostat, duct transitions, electrical work, labor warranty or disposal.
Estimate your cost
Use the calculator below for a state-adjusted planning range. Your contractor still needs to diagnose, size or inspect the actual system before giving a firm quote.
Want to compare this estimate with local HVAC help?
Call to connect with service options in your area. Ask for a written quote before authorizing major work.