our companies
DMI Companies provide superior HVAC products to contractors and builders worldwide. Whether you need something as small as a sheet metal screw, or as large as 60" ductwork, we've got you covered. Our products are known for their high quality, and we take pride in our manufacturing processes. All four divisions of DMI Companies produce union made products.
Ductmate Industries
Ductmate Industries
Through 40 years of innovation, Ductmate has proven to be the industry leader in engineered duct system and component solutions.
With manufacturing and distribution facilities dotting the planet, Ductmate is one of the largest HVAC system components manufacturers in the world, and the largest in the United States. Our emphasis on engineering and R&D produces distinct advantages over competing duct system manufacturers.
By delivering consistently-high product quality, uninterrupted supply, and unparalleled service and support, Ductmate improves your on-time delivery and finished project quality, while reducing time on the job and installed system cost.
Aire Technologies
Aire Technologies
Aire Technologies specializes in the rapid manufacture and delivery of HVAC fire protection products. Our fire dampers and ceiling radiation dampers (CRD) serve a dual purpose. Their design slows the spread of fire and allows additional time for the occupants of a burning building to escape. Our products are proudly American-made of the highest quality in our southwestern PA manufacturing facility by members of the SMART Sheet Metal Workers Union. We have the finest production and shipping team in the industry, allowing us to surpass the lead times of our competitors and get the products that you need on the job site faster than anyone else.
Green Seam
Green Seam
GreenSeam Industries is the best source for factory-sealed pipe and fittings in North America. Our products are sold through a growing network of distributors in the U.S.A., making it easy to find, order, and take delivery of all of our superior pipe and fittings products. We have designed and engineered a completely factory-sealed pipe and fittings duct system for the low-pressure side of HVAC systems. Our HETOs, Conicals, Collars, and Pipe will provide you with a SMACNA Class 3 seal without needing to use additional sealants or tapes on the job site.
Linx
Linx
Linx Industries is North America’s leading manufacturer of HVAC ductwork. Previously referred to as Lindab USA, Linx is America’s single source for Lindab products. We provide the construction market with residential, commercial, and industrial air distribution solutions. Our products can save valuable time and money, and are notable for their high quality and ease of assembly. Linx products are sold through a network of trusted manufacturer representatives in the United States and Canada.
Ductmate Industries
Ductmate Industries
Through 40 years of innovation, Ductmate has proven to be the industry leader in engineered duct system and component solutions.
With manufacturing and distribution facilities dotting the planet, Ductmate is one of the largest HVAC system components manufacturers in the world, and the largest in the United States. Our emphasis on engineering and R&D produces distinct advantages over competing duct system manufacturers.
By delivering consistently-high product quality, uninterrupted supply, and unparalleled service and support, Ductmate improves your on-time delivery and finished project quality, while reducing time on the job and installed system cost.
Aire Technologies
Aire Technologies
Aire Technologies specializes in the rapid manufacture and delivery of HVAC fire protection products. Our fire dampers and ceiling radiation dampers (CRD) serve a dual purpose. Their design slows the spread of fire and allows additional time for the occupants of a burning building to escape. Our products are proudly American-made of the highest quality in our southwestern PA manufacturing facility by members of the SMART Sheet Metal Workers Union. We have the finest production and shipping team in the industry, allowing us to surpass the lead times of our competitors and get the products that you need on the job site faster than anyone else.
Green Seam
Green Seam
GreenSeam Industries is the best source for factory-sealed pipe and fittings in North America. Our products are sold through a growing network of distributors in the U.S.A., making it easy to find, order, and take delivery of all of our superior pipe and fittings products. We have designed and engineered a completely factory-sealed pipe and fittings duct system for the low-pressure side of HVAC systems. Our HETOs, Conicals, Collars, and Pipe will provide you with a SMACNA Class 3 seal without needing to use additional sealants or tapes on the job site.
Linx
Linx
Linx Industries is North America’s leading manufacturer of HVAC ductwork. Previously referred to as Lindab USA, Linx is America’s single source for Lindab products. We provide the construction market with residential, commercial, and industrial air distribution solutions. Our products can save valuable time and money, and are notable for their high quality and ease of assembly. Linx products are sold through a network of trusted manufacturer representatives in the United States and Canada.
DMI Achieves TRUE Zero Rating:
First of its Kind for a PA Manufacturing Facility, DMI is proud to announce being awarded the certification of TRUE Silver at their main manufacturing facility in Monongahela.
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Congratulations To Make-A-Wish:
DMI Companies Is Proud To Celebrate 40 Years Of Granting Wishes With Make-A-Wish.
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2020 Sustainability Report:
Our annual report is now available highlighting our corporate wide sustainability efforts including our Zero Waste and Energy/Water Conversations strategies.
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DMI Subject of Catalyst Case Study:
DMI Companies was the subject of a case study conducted by Catalyst Connection about being an innovative and sustainable Industry 4.0 manufacturer.
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our partners
DMI Companies is a proud member of the following organizations:
