De-Cal Mechanical Contractors is a full-service Union Mechanical Contracting Firm that has been serving clients since 1992. We offer a wide range of services, including Commercial, Industrial, and Medical Facility Inspections, Ironworking, Automotive, Wastewater Treatment, Piping Installations, Pipe Fitting, Pipe Fabrication, and much more. Our team is dedicated to providing high-quality work and exceptional customer service.

With over 400 full-time office and field personnel, we have the expertise and resources to handle projects of any size. As a privately-held corporation, we are proud to be owned and managed by Andrew Calcaterra, President, and Randall DeBeul, VP. We serve clients across Michigan, Ohio, and Pennsylvania, including Warren, Detroit, Youngstown, and Pittsburgh.

Our goal is to provide a safe and challenging work environment while delivering excellent results. Visit our website to learn more about our services and get in touch with us for all your mechanical contracting needs. Safety is our top priority, and we are committed to exceeding your expectations