Dennis Heating and Cooling is a family owned and operated business that is committed to providing the highest quality and best value for Heating, Cooling, and Air Quality products throughout DeKalb County – DeKalb, Sycamore, Genoa, Kingston, Malta. We service, repair, replace (install) furnaces and air conditioners, and provide annual maintenance for all makes and models of furnaces and cooling equipment. Whatever your needs you can rely on our installation, repair, or maintenance to be timely and professional. You’ll appreciate our straight forwarded, no hassle approach! Technician with over 17 years of experience! Honest, Fair and Trustworthy!