Simply put, we are cleaners. We clean your furnace and ductwork with our powerful vacuum and compressed air. Where as the furnace company tunes up your furnace and makes sure it’s running properly. Both of us are needed for your furnace to run properly. Oil Furnaces especially! They require both a tune up as well as Home Alliance to come out and clean their heat exchanger regularly. Oil soot can clog a furnace causing breakdowns and malfunctions. Often it’s the furnace inspector who informs homeowners to call us because of the state their ductwork or heat exchanger is in.