Northern Insulation Contractors Inc.

Northern Insulation Contractors Inc. is a union mechanical insulation contractor serving Duluth, MN with decades of expertise in commercial and industrial insulation services.

About

Northern Insulation Contractors Inc. is a union mechanical insulation contractor serving Duluth, MN. As a signatory contractor with the International Association of Heat and Frost Insulators and Allied Workers Local Union 49, the company employs skilled union tradespeople committed to quality and safety. With over 35 years of experience in the insulation industry, Northern Insulation Contractors Inc. has built a reputation for reliable, high-quality workmanship. The company's core services include boiler insulation, duct insulation, pipe insulation, and equipment insulation. Northern Insulation Contractors Inc. specializes in commercial and industrial insulation, serving clients across the manufacturing, energy, healthcare, education, and brewing sectors. Their experienced team brings expertise in thermal insulation, specialty coatings, and asbestos abatement. Northern Insulation Contractors Inc. serves clients throughout Minnesota and the surrounding Midwest region. Headquartered in Duluth, the company operates additional locations to support projects across a multi-state service area. Their geographic reach allows them to handle everything from local building renovations to large-scale industrial facility expansions. The company maintains strong relationships with the International Association of Heat and Frost Insulators and Allied Workers and is committed to employing trained, certified union tradespeople. Northern Insulation Contractors Inc. holds numerous industry certifications, including OSHA 30, LEED AP, and state-level mechanical and insulation licenses. With bonding capacity of $10 million, the company has the resources to tackle projects of all sizes while prioritizing job site safety. Notable work for Northern Insulation Contractors Inc. includes insulation projects for the University of Minnesota Duluth, Essentia Health, Pier B Hotel, and several regional craft breweries. With a team of over 50 professionals, the company has the expertise to handle everything from small-scale renovations to large industrial facility expansions. Their commitment to quality, safety, and customer satisfaction has earned Northern Insulation Contractors Inc. a reputation as a trusted insulation partner in the Duluth area. For reliable insulation services in Duluth, contact Northern Insulation Contractors Inc. to discuss your next commercial or industrial project.

Project Types

CommercialIndustrialManufacturingHealthcareEducationBrewing

Notable Projects

  • University of Minnesota Duluth
  • Essentia Health
  • Pier B Hotel
  • Bent Paddle Brewing
  • Castle Danger Brewing
  • Blacklist Brewing
  • Ursa Minor Brewing
  • Fitger's Brewing
  • Earth Rider Brewing

Certifications & Memberships

Certifications

Contact Information

Map showing location of 4737 Midway Rd, Duluth, MN 55811, Duluth, MN
Address
4737 Midway Rd, Duluth, MN 55811
Duluth, MN

Company Details

Established
1983
Employees
26-50

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Data Sources

This information is compiled from publicly available sources to ensure accuracy and transparency.

mapquest.com(2 pages)• Accessed: 1/13/2026
niinsulation.com(2 pages)• Accessed: 1/13/2026
bbb.org• Accessed: 1/13/2026
buildzoom.com• Accessed: 1/13/2026
northerninsulation.com• Accessed: 1/13/2026

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