Lunseth Plumbing and Heating Co. performs a very wide range of work; from small residential service to multi-million dollar construction projects. The majority of our work is light and/or heavy commercial, hospitals, institutional, GSA, Corps of Engineers, military, municipal, and industrial. We are proficient in all types of plumbing, gas piping, air piping, medical gas piping, specialty piping, fuel line piping, process piping, hydronic heat, steam heat, underground high temperature hot water, and steam distribution systems. We have extensive experience in the design and construction of processing and manufacturing plant systems. We also install and service boilers and other pressure vessels.

Lunseth is an ASME code shop and hold ASME "S", "U" and National Board "R" stamps. We also have ASME welding qualifications for T-304L SS inspected to ASTM B31.3 cyclic service. We have invested heavily in automated welding machinery, including various hydraulic end-prep and severing machines for stainless steel pipe up to 20”. We have six computerized orbital welders and a universal welder/outlet machine. We are frequently called upon for specialty welding projects, stainless steel welding, code vessel repair and welded boiler repairs.

We work extensively with bio-digester technologies through BacTee Systems, providing piping, installation and manufacturing services for a new generation of biological technology in the world of solid and liquid waste treatment.

Lunseth was selected as a Northern Test Site for the A.O. Smith Corporation to provide realistic field testing of new developments in equipment and technology.