Cost of Air Conditioner Installation in Tennessee$3,699.05 for 2-3 ton unit (using existing ductwork) (Range: $3,194.39 - $4,203.71) Free Estimates from Local ProsCost of Whole House Humidifier Installation in Tennessee$359.71 for mid-grade central humidifer (flow-through) (Range: $330.18 - $389.23) Free Estimates from Local ProsCost of Central Air Purifier Installation in Tennessee$1,003.06 for a typical two story home (standard grade unit) (Range: $843.78 - $1,162.33) Free Estimates from Local Pros |