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Our commercial services
GTI has been serving businesses in Minnesota, North Dakota, South Dakota, 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.
Paving & Roadway
GTI is equipped to provide new roadway paving and top-quality restoration of damaged or removed surfaces.
Sealing & Striping
GTI offers high-quality crack filling, surface sealing, and striping services to beautify your property and extend the life of your surface.
Pipeline Construction & Excavation
GTI specializes in high-density polyethylene (HDPE) pipe installations.
Geothermal Systems Installation
GTI specializes in high-quality, scalable geothermal (ground-source) heating and cooling for any application.
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Our residential services
Paving & Driveways
GTI specializes in restoring or paving new residential driveways.
