Duluth, Minn., ABE Environmental Systems specializes in providing building automation and temperature controls. The company has been operational for more than 40 years and serves customers in Northland, Iron Range and portions of north-eastern Minnesota. It is a division of Uhl Company Inc. that was founded in 1917. The company offers services, such as full mechanical systems replacement, electrical services, security solutions, preventative maintenance, seasonal tune ups, fully stocked warehouse, service vans and many more.