We are a family of mechanical contracting companies offering full-service, award-winning plumbing, piping, HVAC, and sheet metal construction, service and maintenance. Established in Kansas City in 1893, our roots date back to 1855, when our company founder started a small metalworks shop in Cologne, Germany. Today we design, build, install, and maintain complex systems in a variety of industries, including commercial and office, healthcare, entertainment and hospitality, research labs, data centers, government, education and public safety. Our shops use advanced modeling and design technology to create industry-leading modular/skidded equipment, pipe fabrication and pressure vessels. We are headquartered in Kansas City.