Business Details
21 Years
experience
Trusted Geothermal Drilling & Loop Installation Services
Founded in 2005, G O Loop has established itself as a trusted leader in geothermal loop installations, delivering sustainable energy solutions across Wisconsin and northern Illinois. With over 2,500 closed-loop systems installed, our expertise spans residential, commercial, and large-scale projects, utilizing advanced design software and IGSHPA-certified methodologies. Our team, led by industry veterans with decades of combined experience, specializes in vertical and directional drilling, trench excavation, and pond installations, ensuring tailored solutions for every project.We prioritize precision and reliability, backed by memberships in the Wisconsin Geothermal Association and accreditation from the Better Business Bureau. Our commitment to innovation and environmental stewardship positions us as a go-to partner for efficient geothermal systems, combining technical excellence with a client-centric approach to meet evolving energy needs.
Services
Geothermal Drilling
Loop Installation
Directional Drilling
Water System Flushing
Commercial GeoExchange Systems
Details
- Year established: 2005
Highlights and features
- 19 years of specialized geothermal experience with 2,500+ systems installed
- IGSHPA-certified team ensures industry-leading standards and training
- Advanced design software for precise residential and commercial system planning
- Serving Wisconsin and northern Illinois with localized expertise and reliability
- Backed by memberships in Wisconsin Geothermal Association and BBB accreditation
Associations and certifications
- International Ground Source Heat Pump Association
- Better Business Bureau of Wisconsin
Services
Geothermal Drilling
Geothermal drilling involves creating vertical or directional boreholes to install closed-loop systems that harness the earth's stable temperatures. Our precision drilling ensures optimal system efficiency for residential and commercial properties. This service reduces energy costs by up to 50% while maintaining environmental sustainability through minimal land disruption.
Directional Drilling
Directional drilling enables underground loop installation beneath obstacles like driveways or trees without surface disruption. Ideal for challenging sites, this method preserves landscaping while ensuring efficient geothermal system performance. It supports complex projects requiring minimal visual and environmental impact.
Water System Flushing
Water system flushing clears debris and air from geothermal loops using high-flow equipment, ensuring peak efficiency. Capable of 1,500 GPM flow rates, this service optimizes system longevity and performance. Regular maintenance prevents blockages and maintains consistent heating and cooling output.
Commercial GeoExchange Systems
Commercial GeoExchange systems provide scalable heating and cooling for schools, offices, and hotels using underground thermal energy. These systems reduce operating costs by up to 30% while offering zone-specific climate control. Durable designs ensure decades of reliable, eco-friendly performance.
Residential GeoExchange Systems
Residential GeoExchange systems deliver year-round comfort by leveraging stable underground temperatures for energy-efficient heating and cooling. Homeowners benefit from lower utility bills and reduced maintenance needs. Systems integrate seamlessly with existing HVAC infrastructure for sustainable living.
People
Gordy Oosterhouse
Founder
Gordy Oosterhouse founded G O Loop in 2005 after starting his career in geothermal systems as an HVAC contractor in 1994. His expertise drives the company's technical innovation and commitment to sustainable energy solutions.
Brandt Eisenga
General Manager
Brandt Eisenga, a partner since 2019, oversees residential projects and serves on the Wisconsin Geothermal Association board. With IGSHPA certification, he brings 15+ years of geothermal experience to client-focused solutions.
Colton Sherwood
Commercial Project Manager
Colton Sherwood manages commercial projects at G O Loop, leveraging his IGSHPA-certified expertise to design large-scale geothermal systems. He joined the company in 2021, focusing on sustainable infrastructure for institutional clients.
Questions
What is a GeoExchange system?
A GeoExchange system uses underground closed-loop pipes to transfer heat between buildings and the earth, providing energy-efficient heating and cooling through stable ground temperatures.
How much can I save with a geothermal system?
GeoExchange systems can reduce heating costs by up to 50% and cooling costs by up to 30%, with potential payback periods of 5-10 years through energy savings.
Are geothermal systems environmentally friendly?
Yes, GeoExchange systems are EPA-recognized as the most environmentally friendly HVAC technology, reducing CO2 emissions and eliminating combustion-based pollution.
What areas do you serve?
G.O. Loop serves all of Wisconsin and northern Illinois, specializing in residential, commercial, and large-scale geothermal projects tailored to local geology and energy needs.
How long do geothermal systems last?
Properly installed geothermal loops last over 50 years, with indoor heat pumps requiring replacement every 20-25 years, ensuring decades of reliable, low-maintenance operation.
Do you offer maintenance services?
Yes, we provide water system flushing and performance testing to maintain optimal efficiency, using high-flow equipment capable of 1,500 GPM for large-scale commercial systems.
