Leith Heating & Cooling is your professional HVAC company serving Charles, IL. We are a veteran and family-owned and operated heating and cooling business focusing on customer service. Our trained staff of professionals are here to serve your needs in the Fox Valley Area. We continue to train and update our team's knowledge through continuing education and the latest changes in HVAC technologies. We provide heating and air conditioning services like repair and installation, heat pumps, boilers, ductless systems, indoor air quality services. Contact our HVAC service team to learn about financing and service agreements near you!