ESCO designs, sells, installs & services Buidling Automation Systems for the control of temperature within Commercial buildings for the purposes of providing comfort to the building, efficiently. In addition to controlling HVAC equipment, we also provide service and retrofit of that HVAC equipment for those same buildings. The DDC systems we provide are "open" and can be serviced by any other Controls contractor. Parts are also available from more than one source. ESCO has two locations, one covering Denver and the front range area from Wyoming to Pueblo. The other office is on the Western Slope covering the mountain communities from Telluride to Aspen to Steamboat Springs.