If you’re in need of heating and cooling in O’Fallon, MO, you need our team here at Jerry Kelly Heating & Air Conditioning. We have years of experience as a local HVAC contractor and we love nothing more than helping our customers to stay comfortable in their homes. Whether your air conditioning is on the fritz on the hottest day, or your heating system has failed in the middle of winter, we’re here to help.

We offer fast service throughout the area and we’ll get to you as quickly as we can. With over 45 years of service, our customers trust us to repair and replace HVAC systems to the highest standard. We “simply make it work” and will go out of our way to ensure you are completely satisfied. In fact, we offer a 100% satisfaction guarantee. Speak to our team today to find out more and to arrange an appointment.