Plains Mechanical Services, the Thermogenics team in Sioux City, Iowa, installs, services and repairs industrial and commercial boilers in South Dakota. We handle code repairs, rentals and 24/7 emergency service.
Plains Mechanical Services was founded in 1994 and joined Thermogenics in 2023. From our shop in Sioux City, Iowa, our technicians work across the Midwest. In South Dakota we handle scheduled maintenance and breakdown calls.
We sell, install, service and repair boilers, pressure vessels, piping systems and industrial combustion equipment. That covers steam and hydronic systems, process burners, fuel and process piping, and full boiler room design. We represent Parker Boiler and Industrial Combustion. When a plant needs temporary steam or hot water, we arrange rental boilers through the Thermogenics network.
Plains Mechanical Services
Plains Mechanical Services, Sioux City, Iowa. Boiler room design, steam and hydronic systems, process burners and code repairs under the National Board 'R' stamp. Emergency service 24/7.
2300 Hawkeye Drive, Sioux City, IA 51105-2058
712-252-4797
South Dakota’s boiler safety law, SDCL Chapter 34-29A, directs the Department of Public Safety to run a boiler inspection program. The State Fire Marshal’s office handles boiler safety. Our team prepares plants for the inspector’s visit, corrects findings and makes the code repairs the inspector calls for.
SD Boiler Safety
South Dakota Department of Public Safety – State Fire Marshal (Boiler Safety)
Packing and food plants use steam for cooking, washdown and sanitation, so a boiler outage stops production. Our team repairs the boiler and gets steam back on line.
Ethanol plants depend on steam for cooking and distillation. Our team installs and repairs process burners, fuel and process piping, and steam systems.
Hospitals use steam for heating, humidification and sterilization all year. We repair and replace hospital boilers.
School systems, universities and community colleges heat their buildings from central steam and hot-water plants. We maintain, repair and redesign those boiler rooms.
Our Plains Mechanical Services shop in Sioux City, Iowa, serves South Dakota. Sioux Falls is about 90 miles up Interstate 29, roughly 1.5 hours by road. Our technicians come out for scheduled maintenance, repairs, startups and emergency calls.
Power boilers need an annual certificate inspection under SDCL Chapter 34-29A, and low-pressure steam and hot-water heating boilers are inspected every two years. We can service your equipment before the inspector arrives and repair anything the inspection turns up.
Yes. Our Sioux City team holds the National Board 'R' stamp (repairs and alterations to boilers and pressure vessels) and the ASME 'S' stamp (power boilers / code power piping). Code repairs and power piping work are done and documented under those stamps.
Check burners, controls, low-water cutoffs, flame safeguards and condensate return. Heating design temperatures run around -10 °F with strong winds, so problems are easier to fix in the fall than in January. If you want standby capacity for the season, we can arrange a rental boiler.
Reach our Sioux City team at 712-252-4797, 24/7 for emergencies. We can schedule maintenance, quote repairs or arrange a rental boiler.
Request emergency service online