Over 40 years ago, Don Magnuson founded Magnuson Sheet Metal Inc. Today, as part of the Finken family of companies, we’ve grown into a full-service HVAC contractor and custom sheet metal fabricator—continuing a long tradition of quality, reliability, and customer-focused service.
Serving Willmar, New London, Spicer, and surrounding areas.
Need to schedule service or request a free estimate?
Just some of the high-quality manufacturers that we are partnered with
Expert heating services in Willmar, MN. Furnace installation, repair, maintenance & emergency heating services. Bryant dealer with 24/7 availability.
Expert AC services in Willmar, MN. Air conditioning installation, repair, maintenance & emergency cooling services. Bryant dealer with warranties.
Expert sheet metal services in Willmar, MN. Custom ductwork, metal fabrication, ventilation systems and ductwork repair for residential & commercial.
Indoor air quality solutions in Willmar, MN. Air purifiers, humidity control, duct cleaning and air quality testing for healthier homes and businesses.
Expert commercial HVAC services in Willmar, MN. Installation, repair, maintenance for offices, retail, industrial facilities. 24/7 emergency service available.
Core Values
Nearly 40 years ago, Don Magnuson started a small sheet metal company on his family farm in Pennock. Built on a foundation of hard work and dedication, that business grew into one of the region’s trusted heating and cooling companies, and today its legacy continues as part of the Finken family of services.
24/7 Emergency Support
Installed with Pride
Exceptional Service/Quality
Thank you for your kind treatment of that mother with the newborn. The world needs more businesses like yours!
- Tony English
You guys ares such an inspiration!! Cheers From Canada.
- Tommy Dara
You are truly a blessing to many people.
- Karen Jean
Need to schedule service or request a free estimate?
Magnuson Sheet Metal Inc.
132 25th St SE
Willmar, MN 56201
