Furnaces Repairing & Cleaning is a subdivision of the Plumbing, Heating, and Air-Conditioning Contractors industry. This industry involves the maintenance, repair, and cleaning of furnaces used in residential, commercial, and industrial settings. Furnaces are heating systems that use fuel or electricity to generate heat and distribute it throughout a building. The Furnaces Repairing & Cleaning industry ensures that these systems are functioning properly and efficiently. The services provided by Furnaces Repairing & Cleaning companies include routine maintenance, repair of malfunctioning parts, replacement of damaged components, and cleaning of the furnace and its ductwork. Technicians in this industry are trained to diagnose and troubleshoot problems with furnaces, and to recommend the best course of action to restore the system to optimal performance.