How Much Does It Cost to Install Central AC?
Central AC installation costs $3,500-$7,500 if your home already has ductwork from a forced-air furnace. If you need new ductwork, add $3,000-$8,000 to the total. A ductless mini-split alternative costs $2,000-$5,000 per zone. The price depends on home size, system efficiency, existing infrastructure, and local labor rates.
THE DETAILS
If your home has a forced-air furnace with ductwork already in place, adding central AC is relatively straightforward. The installer sets up an outdoor condenser unit, connects refrigerant lines, and mounts an evaporator coil on your furnace.
Homes without ductwork face a bigger investment. Installing new ductwork through walls, floors, and ceilings can cost $3,000-$8,000+ and may not be practical in older homes with finished walls and limited space.
For homes without ductwork, a ductless mini-split is usually a better option. Single-zone systems cost $2,000-$5,000 and require only a small hole in the wall for the refrigerant line. Multi-zone systems (2-4 rooms) run $5,000-$12,000.
System efficiency affects price. Higher SEER2 ratings cost more upfront but lower monthly bills. For Pittsburgh's climate, a mid-range efficiency unit (16-18 SEER2) usually offers the best value balance.
Federal tax credits of up to $600 are available for qualifying central AC installations, or up to $2,000 for heat pumps.
🔧 WHEN TO CALL A PRO
Get 2-3 quotes from local HVAC companies. A good installer will visit your home, evaluate your ductwork and electrical capacity, and recommend the right system size based on a load calculation.