When your furnace or heating system isn't working properly, you need fast, reliable service from a team you can trust. Mark's Heating & Air Conditioning provides comprehensive heating service calls for homeowners throughout Sparta, TN, Cookeville, Crossville, and the Upper Cumberland region. We service gas furnaces, electric furnaces, heat pumps, and dual-fuel systems from all major manufacturers.

Our heating service calls begin with a thorough diagnosis of your system to identify the root cause of the problem. We check all critical components, test safety controls, and evaluate overall system performance. Our technicians explain their findings in plain language and provide upfront pricing before any work begins.