Star Wars was the name given to which Reagan effort? A. Nuclear Arms Disarmament B. Nuclear Arms Race C. Strategic Defense Initiative D. Strategic Offense Initiative.
1 Central A/C installation in a home with existing ductwork costs $2,500 to $7,000, including the system itself and all associated labor costs. 2  Central A/C installation in a home that requires ductwork can easily cost twice as much, or $5,000-$14,000.
Central Air Conditioning. The average cost to add a central, or whole-house, air conditioning system to a home ranged from about $2,200 to $2,800 in 2012, according to Homewyse data.Central air conditioners move cool air throughout a house through a duct system.Contractors usually link central air conditioners to the ducts of an existing home heating system. Average installation costs could double if a contractor has to add, or redo, duct work before installing a central air conditioner.entral air conditioners move cool air throughout a house through a duct system. Contractors usually link central air conditioners to the ducts of an existing home heating system. Average installation costs could double if a contractor has to add, or redo, duct work before installing a central air conditioner.