Since our open in late 2007, Sub-Surface Geothermal Inc. has enjoyed serving Northern Illinois with the most professional and reliable geothermal drilling services.

As of recent, we have increased our IGSHPA (International Ground Source Heat Pump Association) accredited installers to a total of four.

Here's what we've been up to:

  • Lake Forest, Il. – 12 Tons
  • Libertyville, Il. – 8 Tons
  • Winnetka, Il. – 14 Tons
  • Kenilworth, Il. – 10 Tons
  • Lake Bluff, Il. – 18 Tons
  • Hawthorn Woods, Il. – 8 Tons
  • Glencoe, Il. – 12 Tons

If you have any questions about our work contact us here.

The drill rig operating in Lake Bluff, Il.