Capco Energy Supply 3 Rath Rd Woburn MA 1801 was incorporated in 1978 with the goal providing energy efficient equipment and products to the Metro Boston market. Areas Served: CAPCO Energy Supply serves the Metro Boston Area. What Brands Does Capco Sell? CAPCO Energy Supply offers name brands such as Vissmann Caleffi Lochinvar aquatherm Buderus Tekmar LG Viega Grundfos Unico Bosch and many other plumbing and HVAC supplies.