Founded in Douglasville, Georgia, in 1989, Royal Metal Products manufactures and distributes sheet-metal HVAC products for residential and light commercial construction. Its Temple plant now spans more than 280,000 square feet and produces over 3,500 HVAC products, supported by an internal machine shop and company-operated delivery fleet. Acquired by Smiths Group in 2021, Royal Metal Products is now part of the Flex-Tek Division.
Anti-Modern Slavery & Transparency Statements
Compliance program
M&M ManufacturingFounded in Fort Worth in 1958, M&M Manufacturing produces sheet-metal goods and HVAC products, with a longstanding focus on air distribution and ventilation. It describes itself as one of the country’s largest producers of sheet-metal products and manufactures ductwork and fittings for residential and commercial construction. Its history includes acquiring Snappy Metal Products in 2016 and being purchased by Marmon Holdings in 2021.MEDINA, NY
Southwark Metal Manufacturing CoFounded in 1946, Southwark Metal Manufacturing is a third-generation family-owned company that makes sheet-metal ductwork for residential and light-commercial HVAC systems. It operates seven U.S. facilities and describes itself as one of the largest manufacturers in this specialty, with more than 3,000 stock items and custom fittings produced for wholesale distributors.PHILADELPHIA, PA
Lukjan Metal ProductsLukjan Metal Products is a family-owned and operated manufacturer of sheet metal products for the wholesale HVAC industry, founded in Conneaut, Ohio, in 1964. Under the leadership of the founders’ son and daughter, it has expanded to four facilities in Ohio, North Carolina, Wisconsin, and Nebraska, with its named facilities collectively providing more than 700,000 square feet of manufacturing capacity. The company is particularly known for prefabricated sheet metal fittings and serves HVAC distributors across regional markets.CONNEAUT, OH
Gray Metal Products, IncFamily-owned Gray Metal Products manufactures heating and air-conditioning products for wholesale distributors and hardware chains. Incorporated in Rochester, New York, in 1932, the company traces its roots to the Gray family’s 1890 Rochester Can Company and remains in its fifth generation, with a long history that includes the patented corrugated garbage can and early HVAC components.AVON, NY