The certified HVAC technicians at D & G Heating & Cooling, Inc. are eager to serve residential and commercial clients in Livonia, MI and the greater Detroit area. We are available 24 hours a day, 7 days a week, and when you call us, you can be confident that we will quickly repair your heating or central air system using the top-rated, high-efficiency products available to us as a factory-authorized dealer. With our repair, installation, and replacement services, as well as our complete line of heating and cooling products, we are able to go the extra mile to ensure your year-round comfort.