Tri Tech Sales, 2425 4th St, Sioux City, IA 51101, US

Established in 1970, Rasmussen Mechanical Services was previously known as Rasmussen Heating and Air Conditioning. Located in Sioux City, Iowa, it is a single source provider of service, repair, installation and design. The company offers a range of services, such as National Board welding and repairs, design-build, installation and full-service parts distribution. Rasmussen Mechanical Services operates Heating, Ventilating and Air Conditioning Services; Mechanical Construction; Industrial Burner Services; Code Services and Boiler Repair; Temperature Controls; Air and Water Balancing; Lab Safety Certification and Repair; and Parts and Equipment Sales divisions. It caters to the needs of commercial, industrial, and institutional clients throughout the Central United States. The company is a member of the Mechanical Service Contractors of America, Excellence Alliance and National Sanitary Foundation, among others.