AC tune up and air conditioner maintenance on air conditioner located near you in Lincolnshire, Illinois. Add freon refrigerant. Keep you air conditioner running at peak efficiency, Call North Shore Heating and Cooling to perform an air conditioner maintenance and safety check. Call today to schedule an appointment at 847-729-1040. Or visit our website for special savings at www.northshoreheatingandcooling.com/special-offers.