No Project Too Big or Too Small

Northern Industrial Insulation is committed to the total success of your commercial and industrial insulation projects.

Since 1983, customers have trusted NII to perform high-quality, reliable insulation services throughout the Midwest operating on both new and retrofit projects.

Northern Industrial Insulation contracts all types of pipe, boiler, duct, and equipment insulation. NII maintains a large stock of thermal insulation and accessories for distribution to industrial, commercial, and contractor accounts.

Our Services

  • Boiler Insulation

  • Duct Insulation

  • Pipe Insulation

  • Equipment Insulation

Our Projects

  • Oranssi project: roof expansion
  • Oranssi project: passive house
  • Oranssi project: slat roof

  • University of Minnesota Duluth

  • University of Wisconsin Superior

  • Local & Regional Public School Districts

  • Craft Breweries: Bent Paddle, Castle Danger, Blacklist, Ursa Minor, Fitger’s, and Earth Rider

  • Pier B Hotel

  • Kwik Trip Stores

  • Maurices Corporate Headquarters

  • Hospitals: St. Luke’s and Essential Health

  • Essentia Vision Northland

  • College of St Scholastica Stanbrook Hall

Commercial Projects

  • Fraser Shipyards

  • Air National Guard

  • Sappi Paper

  • Superior Oil Refinery

  • Cleveland Cliffs

  • Duluth Energy

  • Mesabi Nugget

  • Northern Natural Gas

Industrial Projects