Window Air Conditioning Cost

How much does it cost to install window air conditioning?

Average window air conditioning (A/C) costs vary by type of unit, its cooling capacity and efficiency rating, special preparations, and the labor rate.

Window A/C units will occupy a window space and will exhaust heat to the exterior, and provide cooling air to the interior climate zone with no ductwork.

Cost breakdown

The Labor Cost figures in the following tables are what the able DIY would expect to save.

Window A/C: for cooling a room of 20' x 22' = 440 sq.ft.; include delivery, all material, equipment, and waste.

ItemUnit CostQuantityLine Cost
A/C unit: 10000 BTU cooling only, 115 VAC, with all trim, weather stripping, and hardware.$345each1$345
Upgrade: install new circuit; 30 feet of  surface mounted #14/3 cable; 15 amp breaker into existing space; two outlets with box and cover.$0.85per foot32$27
Material Cost$372each1$372
+ Labor Cost (install AC unit)$34per hour1$34
+ Labor Cost (upgrade circuit)$42per hour3$126
Total Cost$532each1$532


Window A/C: for heating and cooling a room of 39' x 40' = 1,560 sq.ft.; include delivery, all material, equipment, and waste.

ItemUnit CostQuantityLine Cost
A/C Unit: 25000 BTU heating and cooling, 230 VAC, with all trim, weather stripping, and hardware.$977.50each1$978
Upgrade: install new circuit, 30 feet of surface mounted #10/3 cable; include 30 amp breaker in existing slot and outlet box with cover.$1.66per foot32$52
Material Cost$1,030each1$1,030
+ Labor Cost (install AC unit)$34per hour1$34
+ Labor Cost (upgrade circuit)$42per hour3$126
Total Cost$1,190each1$1,190



Additional considerations and costs

  • The service provider may charge extra outside their immediate area.
  • Not included are taxes or other fees.
  • Energy efficiency subsidies may be available.
  • Compliance with all local codes and regulations is essential.
  • A multi-phase electrical circuit is generally required for A/C units of greater than 12,000 BTU/h (3.5 kilowatts).
  • Add10% more A/C capacity for a sunny room.
  • Add 600 BTU/h per person more than 2 that occupy the space.
  • add 4,000 BTU/h than required for room size in the kitchen.
  • Labor cost will rise with a hidden circuit installation in a finished environment.
  • Any repair concerns like rot or revised code requirements, and any cost to adapt the existing structure, should be highlighted to the homeowner during provider inspection.

Do it yourself (DIY)?

  • A DIY kit is typically offered by vendors with this product.
  • Heavy lifting and moving may be necessary.

References

  • Craftsman Estimator Costbook, 2015.
  • Vendor Web sites of the Home Improvement sector.
  • Popular DIY Web sites.

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Methodology and sources