Air Comfort Corporation is a leading full service mechanical contractor in Chicagoland and Northwest Indiana. We are the experts in designing, installing and maintaining heating, ventilation and air conditioning systems.							Air Comfort receives Gilbane Building Company Award of Excellence for SBC Harvey project Air Comfort University officially opens Air Comfort certified as an MSCA Star contractor Controls Corner How Did We Do? Did You Know? 9 out of 10 system failures are caused by dirt and dust. A buildup of .042 inches of dirt on heating or cooling coils can result in a decrease in efficiency of 21%.