Air Quality Systems, Inc., is a Wisconsin (WI) Heating, Cooling, Air Conditioning, Geothermal Heat Pump, Ductless Mini-Split, and Furnace repair, service, replacement, and maintenance Company located in Madison and Dane County. Air Quality Systems, Inc. employs only the best technician for air conditioner repair and furnace repair as well as all air conditioner replacement, furnace replacement and boiler replacement in Madison WI, Sunpraire WI, McFarland WI, Oregon WI, Verona WI, Middleton WI, and Monona WI, Stoughton WI, Cottage Grove WI, Deforest WI, Deerfield WI, Waunakee WI, Fitchburg WI. So when you ask to find "A good heating and air conditioning repair or service company near me," you've come to the right place. To set-up a repair service estimate or replacement estimate, call (608) 278-9900. Air Quality Systems, Inc. services all furnace, AC, humidifier, filter, and thermostat including Trane, Goodman, Amana, Mitsubishi, Carrier, American Standard, Lennox, Payne, Ruud, Rheem, Triangle, Gibson, Econair, Honeywell, General, Skuttle, Lochinvar, Maytag, Weil McLain, Crown, Honeywell, GE.