Duct sealant bethlehem SEALING SERVICES IN bethlehem Uninsulated or leaky ducts waste a tremendous amount of energy and can cause spikes in your heating and cooling bills. Air Duct Sealing in Bethlehem on YP. Heating & Air Conditioning, Bethlehem. We offer a wide range of options tailored to function well in low, medium, and high-pressure systems. According to ENERGY STAR, approximately 20 to 30 percent of the air that moves through a typical home’s duct system is lost due to leaks, holes, and poorly connected ducts[1]. This in-slab air duct lining will prevent the growth of mold and ensure nothing builds up within the ducts so you can breathe better air. Providing HVAC ductwork service, repair, and installation services in Bethlehem PA. Our goal is to help families breathe easier while improving system efficiency. . EVERseal is a commercial-grade water-based duct sealant with a smooth application to seal metal joints against air leaks in low, medium, and high-pressure duct systems.