Amundson Heating & Air Cond is a family owned and operated company based in We specialize in residential and commercial heating & cooling services and products. We pride ourselves on being Fast, Efficient and Affordable. Your comfort is at the top of our priority list. We provide friendly & prompt customer service you can trust. Here in North Dakota we experience extreme temperatures from the negatives of winter to the highs of summer- we are a company you can turn to when the heat goes out or the A/C is clearly not working.