GTI has been serving businesses in Minnesota, the Dakotas, Wisconsin, Iowa and Nebraska for more than 12 years. We provide complete geothermal heating and air conditioning systems for nearly any need. We also offer excavation and pipeline construction, as well as new and restorative asphalt paving.
Our Satisfied Customers
We recently completed a massive geothermal, excavation, and repaving project for the Department of Veterans Affairs in St. Cloud, Minnesota. GTI ran over a mile of 18-inch HDPE pipe mains feeding several buildings, along with over 30 miles of horizontal pipe connecting more than 1400 geothermal wells. Read more
Stearns County contracted with GTI Companies to install one of the largest closed-loop "slinky" type geothermal systems in the Midwest. It involved over 100,000 feet of horizontal piping, which was installed below the local water table. Read more