Best Insulation in Mahnomen, Minnesota. Top 30 Insulation in Mahnomen, Minnesota, ranked by rating, reviews, votes. Last updated on May 2024 . Mud Man Mahnomen, Minnesota Insulation Detail Address: 1538 460th Street, Mahnomen, Minnesota 56557. Phone: (218) 567-8238. Categories of builders in Mahnomen, Minnesota Plumbing Contractors Construction Machinery Equipment Electrician Contractors Insulation Heavy Equipment Concrete Ready Mixed