Mestek Machinery is the industry-leading designer and manufacturer of the most complete, productive, and innovative metal forming solutions for the fabrication of HVAC sheet metal ductwork and fittings. Our family of companies –- Lockformer, Engel, Iowa Precision, Roto-Die, have decades of experience addressing every facet of the HVAC duct industry. The result is a combined knowledge and experience that develops cutting-edge, precision technology and automated manufacturing equipment that improves productivity while ensuring the highest-quality finished ducts and fittings.