Johnke Heating & Air Conditioning, Inc. is an HVAC company serving the southern Chicago suburbs. We have more than 40 years of experience with professional design, installation and repair of heating and cooling equipment. Our 24-hour phone answering service allows us to promptly respond to your emergencies.With affordable pricing, expert performance and efficient service calls, we are your HVAC contracting company of choice. Whether your AC is leaking or your heater is blowing out cold air, we can help stabilize the temperature in your home. We service all makes and models. We offer sales, service, cleaning and repair for: Air conditioning Heating Furnaces and boilersWe also work with sump pumps, humidifiers and air cleaners. Though we can fix your HVAC woes, we also provide preventive maintenance. Using our preventive maintenance services saves you more money over time by conserving energy and keeps your heating and air conditioning system in top shape. How's your HVAC equipment?Call today for an Free estimate (on new installs only)