Sheet Metal Contractors, Inc. is a family-owned St Louis union-based HVAC contractor offering architectural sheet metal services as well as commercial, industrial, and residential heating and air conditioning projects. Offering a complete service, from fabrication to installation, we celebrate more than 33 years of success as a premier HVAC and architectural sheet metal contractor. Founded in 1980 by Lawrence P. Krodinger Sr., Sheet Metal Contractors began with just four employees and has grown to an impressive 55 full-time employees. We have senior technical consultants qualified to design several options that can meet all the application requirements of our clients. Our value engineering can help any budget stay in line.