Carlisle HVAC Brands manufactures HVAC products intended to improve duct-system performance, energy efficiency, and indoor air quality. Its Hardcast sealants, adhesives, and coatings have been produced since 1965, while its Gripnail insulation fastening systems date to 1966 and DynAir has manufactured duct airflow hardware for more than 40 years. Carlisle HVAC Brands is part of Carlisle Weatherproofing Technologies, a wholly owned subsidiary of Carlisle Companies.
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AerosealBorn from U.S. Department of Energy research at Lawrence Berkeley National Laboratory, Aeroseal develops aerosol-based technology that seals leaking HVAC ducts and building envelopes from the inside. Founded in 2010 by Dr. Mark Modera and Amit Gupta, the Miamisburg company’s systems have been used to seal more than 260,000 buildings worldwide, while its dealer network delivers computer-controlled air sealing in more than 30 countries.MIAMISBURG, OH
DMI Companies, IncFounded in 1978 as Ductmate Industries, DMI Companies, Inc. is a manufacturer of HVAC products and building automation systems serving contractors and builders worldwide. Its four manufacturing divisions produce union-made products, and the company is known for engineered duct systems and components. DMI operates manufacturing facilities in several states and also offers Airoverse building automation for commercial buildings.CHARLEROI, PA
Seal Tite LLCSeal Tite LLC manufactures prefabricated galvanized duct, pipe, and fittings for air distribution, continuing a trade name first used by the Peck-Williamson Heating Co. sheet metal shop in 1900. The company describes more than 125 years of Seal-Tite history and presents its products as designed for conditioned-air distribution, with production locations identified in Hillsboro, Ohio, and Lebanon, Pennsylvania.HILLSBORO, OH
Cool Air ProductsBorn from an idea in a garage in Ellicott City, Maryland, Cool Air Products is a family-run manufacturer of patented HVAC problem-solving products, including the SmartSeal leak-repair line. Its solutions are developed for the professional trade, with manufacturing standards, third-party testing, and support from a technical team and R&D laboratory. Founder and president Mike Walton leads the company as it builds practical products intended to save contractors time and money in the field.COLUMBIA, MD