Hi Tech Geothermal Heating

"Comfort You Can Count On. Family-Owned. Locally Trusted."

About Us

Hi Tech Geothermal Heating in River Falls, WI, has been focused on personalized customer service and quality since 1996. We have the expertise to provide the best in energy-efficient heating and cooling systems. With over 30 years of experience in the design and installation of geothermal systems, you can be assured you'll receive the finest products and service currently available.

Ask us about our special financing options!

Our Story

Hi-Tech Geothermal Heating in River Falls, WI, has been delivering expert heating and cooling solutions with a personal touch since 1996. Founded by owner and chief engineer Dennis DeMar, the company began as Hi-Tech Service Company, offering energy-efficient heating options to the local community. In 2004, Dennis and his team made a pivotal decision to not only work on geothermal systems, but to provide services for all your heating and cooling needs, a move that has defined the company’s mission to provide “Consistent, Clean Comfort” to homeowners and businesses across west-central Wisconsin and eastern Minnesota.

With over 30 years of hands-on experience in geothermal design and installation, Hi-Tech Geothermal Heating is a leader in providing ultra-high efficiency heating and cooling systems that are built to last. These systems, now branded under Enertech (formerly GeoComfort), are made in the USA and installed by fully trained, IGSHPA-accredited, and EPA-certified technicians. The company is licensed, insured, bonded, and maintains an A+ rating with the Better Business Bureau, ensuring professionalism, safety, and peace of mind for every customer.

Geothermal heating and cooling systems offer unmatched benefits over conventional systems. They don’t rely on fossil fuels, meaning zero toxic emissions, and they use minimal electricity—making them not only energy-efficient but environmentally friendly. In fact, geothermal systems can be up to 500% efficient, earning them recognition by the U.S. EPA as the most efficient option available today. With a typical lifespan of 20–24 years, and an indefinite life expectancy for the underground loop field, these systems also offer the lowest life-cycle cost in the industry. Many homeowners even enjoy free hot water, thanks to the system’s ability to reclaim heat during operation—reducing water heating bills by up to 60%.

Hi-Tech Geothermal Heating also offers a wide range of other services, including radiant floor heating, traditional air conditioning, air-sourced heat pump installation and repair, indoor air quality solutions, hot water boilers, gas and oil furnace services, garage heating, gas fireplaces, and air exchange systems. For clients who prefer standard systems, Hi Tech installs conventional heating and cooling products that are efficient, reliable, and backed by expert local service.

At Hi-Tech Geothermal Heating, every project is guided by experience, integrity, and a commitment to doing what’s best for the customer and the planet. Whether you’re upgrading your home’s comfort or building a new energy-efficient system from the ground up, Dennis and his team are ready to deliver outstanding results. Experience the difference that decades of expertise and a passion for clean energy can make.

Areas Served

Our Professional Associations

Better Business Bureau A+ Rating
Wisconsin Geothermal Association
St. Croix Valley Home Builders Association
National Home Builders Association

Our Certifications

IGSHPA Accredited Installers
Licensed Heating and Cooling Technicians
EPA Certified Service Technicians
Manufacturer Certified Training
Insured and Bonded

What We Offer

Our Specialties include:

Geothermal Heating, Cooling, Design and Troubleshooting
Attention To Detail, Your Satisfaction Matters
Expert Trained Technicians
Service Maintenance Programs

Our Services include:

Geothermal Heating, Air Conditioning, Indoor Air Quality, Radiant Floor Heat, Service Gas Fireplaces, Hot Water Boilers & Air Exchange Systems
Furnace, Boiler, Oil Furnace, Garage, and Heat Pump Repair
Dehumidifiers
Service Maintenance Programs Available
Garage Heater, Boiler, Oil Furnace
Installation - Repair - Service
Air Sourced Heat Pump
UV Light Systems
We Are The Local Experts At Geo Comfort
We Offer Special Financing
No Interest
Pay Over The Phone Via Credit Card
After-Hours Service
Free Consultation and Estimates
Weekend Hours by Emergency Only
Commercial & Residential

Our Brands include:

Our Products include:

Air Filters
Humidifier Pads
Furnace and Filters
Boiler
Geothermal
Air Conditioner
Gas Fireplaces
Energy Efficient
Heat Pump
Water and Solar Hot Water Heaters
Flow Center
Heat Exchanger
Geothermal Tech
Lifetime Warranty and Compressor
Geo Comfort Compass Series
ECM Blower
Radiant Geothermal
Water 2 Water
Geothermal, Ducted, Hybrid and Dual Fuel Geothermal System
Forced Air Application
Eco-Friendly
Lower Utility Bills and Operational Cost
Efficiency Rating of 400-500 Percent
Environmental Friendly
Twin Speed and Dual Capacity Equipment
Quiet and Consistent Air Comfort
Dehumidifiers
Bonus Hot Water
Geo-Thermal Retro Fit
Green Living
Existing Older Homes Can Benefit from Geothermal
De-Super Heater - Used to Supplement your Hot Water
Closed Loop System

Testimonials

On 5/22/2026 John Voight had this to say:
We have been aware of this company and it's management for more than 20 years and have witnessed and experienced thier high quality service and the products they install or replace. First with a water heater and recently with a furnace replacement. They provided a range of product options according to our requirements that were well discribed enabling us to make informed decisions. They arrived on schedule and were professional and courteous. We are satisfied with the end results of both installments. We can recommend this company with out reservation.

On 5/15/2026 John Anderson had this to say:
Dennis came the same day. Found the problem fast, had the part and performed a summer tune up. Dennis and the previous owner Bill have always been super to work with. Love those guys! Thanks guys! John and Dawn Anderson.

On 2/19/2026 Darla Desautel had this to say:
wow, this company really knows their product... best trained technicians; we have a large house, 4200 square feet, with geothermal air and gas in-floor heat... this company does it all!

On 2/19/2026 Darla D. had this to say:
this company and employees really know their products; we have whole house geothermal system plus a separate gas in-floor heat, large house 4200 square feet and the system works wonderfully; they did not charge for a return checkup, good value

On 2/19/2026 Darla Desautel had this to say:
Love this geothermal system and the employees and owners. Testimonial written by Darla Desautel on this site.

Contact Us

Hi Tech Geothermal Heating
930 Chapman Dr. River Falls, WI 54022
Phone: (715) 425-6162
Secondary: (763) 434-5162
Fax: (715) 425-2378
Email: hitechgeo.office@gmail.com

Where To Find Us

Payment Types Accepted

Visa, MasterCard, Personal Checks, Financing

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 7:30 AM - 4:30 PM
Tuesday: 7:30 AM - 4:30 PM
Wednesday: 7:30 AM - 4:30 PM
Thursday: 7:30 AM - 4:30 PM
Friday: 7:30 AM - 5:00 PM

News

On 6/2/2026 this was posted:
Attention to detail. Reliable service. Your satisfaction always comes first ✅
At Hi Tech Geothermal Heating, our expert-trained technicians take pride in doing the job right—every time.
We’re a family-owned and operated company, and that means we treat every home like it’s our own. No shortcuts, just quality you can count on.
Because being a small company isn’t a limitation—it’s our advantage 💪
Expires 6/1/2027

💡 Still using traditional HVAC? It might be costing you more than you think…

Upgrade your comfort and efficiency with Hi-Tech Geothermal Heating 👇

🔥❄️ Why Geothermal is Better than Traditional HVAC:
✔️ Lower Energy Bills – uses the earth’s natural temperature = major savings
✔️ Year-Round Efficiency – heats and cools with one system
✔️ Longer Lifespan – built to last significantly longer than standard systems
✔️ Eco-Friendly – reduces your carbon footprint 🌱
✔️ Quiet & Reliable – fewer moving parts = less noise, fewer breakdowns

In Wisconsin’s extreme seasons, geothermal gives you consistent comfort without the high cost 💪

Ready to make the switch or learn more? We’ve got you covered.

📞 Contact us today for a consultation!

🌎❄️➡️☀️ Season change = perfect time to check your geothermal system

As Wisconsin transitions from cold to warmer temps, your system is working hard behind the scenes. Make sure it’s running efficiently with help from Hi-Tech Geothermal Heating 👇

✔️ Seasonal System Checkups
✔️ Maintenance & Efficiency Tune-Ups
✔️ Repairs & Troubleshooting
✔️ Energy-Saving Solutions for Your Home

Geothermal systems are built to last—but regular maintenance keeps them running at peak performance and saves you money long-term 💡

Get ahead of the season and enjoy comfort year-round 🌿

📞 Schedule your service today!

Info

How Geothermal Works

FAQ

What services does Hi Tech Geothermal Heating provide?

Hi Tech Geothermal Heating specializes in the design, installation, maintenance, and repair of high‑efficiency geothermal heating and cooling systems for residential customers.

How long has Hi Tech Geothermal Heating been in business?

The company has been focused on providing high‑quality geothermal services since 1996, with over 30 years of combined experience in geothermal system design and installation.

What makes geothermal heating and cooling energy efficient?

Geothermal systems use the earth’s stable underground temperatures to heat and cool a home, resulting in ultra‑high efficiency, significant savings, and no dependence on fossil fuels.

Are there tax credits available for installing a geothermal system?

Yes. Customers can qualify for a 30% U.S. federal tax credit for geothermal system installations.

What certifications does Hi Tech Geothermal Heating hold?

We are IGSHPA‑accredited installers, EPA‑certified technicians, and receive ongoing manufacturer‑certified training.

Is Hi Tech Geothermal Heating licensed and insured?

Yes. The company is fully licensed, insured, and bonded.

Does the company offer financing options?

Yes. Hi Tech Geothermal Heating offers special financing options for geothermal system installations.

What brands and products does Hi Tech Geothermal use?

We install top geothermal brands including GeoComfort and related components such as pumps, flow centers, piping, and geothermal heat pumps.

What additional indoor comfort services are offered?

The company provides whole‑home dehumidification, air filtration, and indoor air quality solutions to improve home comfort.

Does Hi Tech Geothermal Heating offer emergency service?

Yes. We provide 24‑hour emergency service, available by phone.

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