About Colorado Geothermal Drilling

Colorado Geothermal Drilling is a family owned business with over a decade of experience in the HVAC industry, encompassing both conventional and geothermal systems.

Who we are

Colorado Geothermal Drilling is owned by Dan and Kari Rau. Dan Rau has a Bachelor's Degree in Mechanical Engineering and is a licensed Professional Engineer (PE). He is LEED (Leadership in Energy and Environmental Design) accredited and has designed and installed geothermal projects throughout Colorado, Utah, and Iowa. Because of Dan's engineering background, he has a comprehensive understanding of geothermal systems and can help guide our clients to the system most appropriate for their heating and cooling needs. We are capable of performing a heat load calculation to determine loop field sizing as well as an economic analysis to show the geothermal system's payback over the life of the system. We strive to master leading edge technology and pride ourselves on the quality of services we commit to our clients.

Colorado Geothermal Drilling has successfully completed numerous projects throughout the Front Range, both residential and commercial, new construction and retrofits of existing structures. Our set-up is unique as we are able to access compact areas with our equipment, setting us apart from other drilling operations. With our vast knowledge of geothermal design and installation we can provide customers with valuable information, answering any questions, and providing the best energy efficient system to fit the clients' needs. The combination of this equipment and our personnel allow us to successfully and repeatedly complete numerous drilling projects along the Front Range.

Colorado Geothermal Drilling is a member of the International Ground Source Heat Pump Association (IGSHPA) and we are IGSHPA Accredited Installers.

CGD provides geothermal drilling services in the state of Colorado all along the Front Range (Denver, Boulder, Colorado Springs & Fort Collins).

For more information on geothermal installation services please contact Dan Rau or Kari Rau. Call us at 303.903.7081 or fill out our online request form.

Recent Geothermal Projects

Client: Homeowner
Site: Greenwood Village, CO, New Construction 15,000 sq. ft. residence with pool
Services: Designed loop field, installed 20-200ft. vertical loops
Projected Savings over Life of System: Approximately $950,000
Project Status: Complete

Client: Homeowner
Site: Fort Collins, CO, Retrofit 2,000 sq. ft. residence built in the 1970's
Services: Designed loop field, installed 3-300 ft. loops
Projected Savings over Life of System: Approximately $300,000
Project Status: Complete

Client: Custom Home Builder - Spec Home
Site: Evergreen, CO, New Construction 8,000 sq. ft. home
Services: Designed loop field, installed 10-230 ft loops installed under driveway
Projected Savings over Life of System (Compared to Propane heating): $1,000,000.00
Project Status: Complete

Client: Residence for special needs
Site: Boulder, CO, New Construction 5,000 sq. ft. commercial building
Services: Installed 10-280 ft loops under parking lot
Projected Savings over Life of System: Approximately $560,000
Project Status: Complete

Client: Homeowner - Net Zero Home
Site: Boulder, CO, New Construction 4,600 sq ft residence
Services: Designed geothermal heat pump system, loop field, and installed 4-300 foot loops and water side of the geothermal heat pump system.
Projected Savings over Life of System: Approximately $300,000
Project Status: Complete