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About the Contractor
Geothermal by Design LLC is a Louisville, Kentucky geothermal contractor at 5501 Blevins Gap Road, specializing in geothermal system design and installation since 2005. Owner Larry Kaelin began working in geothermal systems in 1994 and has overseen the installation of more than 500 units throughout the Louisville and Kentuckiana region. Lead installer Martin Madden holds certifications in heat fusion, loop design, and high-efficiency systems. The company installs Comfort Aire GeoLogix geothermal heat pumps, services all makes and models, and provides radiant floor heating, indoor air quality solutions, and financing options. Geothermal by Design is BBB Accredited with an A+ rating (accredited since 2010) and holds Kentucky HVAC License HM04727. Emergency and weekend appointments are available.
Verified active operator per https://www.geothermalbydesign.com + BBB A+ profile (Bundle 3 audit 2026-05-28)
IGSHPA-certified geothermal specialist serving Louisville and the Kentuckiana region with 28+ years of geothermal expertise and 500+ installed units, founded by owner Larry Kaelin with all technicians factory-trained on WaterFurnace and ComfortAire equipment.
Geothermal heat pump installations in Kentucky require specific permits and compliance with state regulations regarding well drilling, loop installation, and refrigerant handling. Contact your local building department for specific requirements in your area.
How much can I save on heating and cooling costs with geothermal in Louisville?add
Geothermal systems provide a 30-70% reduction in your heating and cooling costs, making over half of your home energy free by working with the Earth's constant 58-degree temperature.
What geothermal equipment brands does Geothermal by Design install in Louisville?add
All employees are factory-trained and certified on WaterFurnace and ComfortAire geothermal equipment. The company is also a ComfortAire Dealer and installs ComfortAire systems throughout the Kentuckiana area.
Are the technicians at Geothermal by Design in Louisville certified?add
Yes, the entire team is IGSHPA-certified and maintains yearly re-certification. Owner Larry Kaelin has 28+ years of geothermal experience with 500+ units installed, and lead installer Martin Madden has 26+ years of HVAC experience installing 30-40 systems annually.
Does Geothermal by Design offer financing options for geothermal installation?add
Yes, Geothermal by Design offers financing options for geothermal system installation along with 24-hour emergency service and weekend appointments.
What services does Geothermal by Design provide beyond installation in Louisville?add
Beyond closed-loop geothermal installation and loop design, the company provides complete service for all makes and models of geothermal systems, radiant floor heating, high-efficiency heat pump and furnace installations, and indoor air quality services.
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If you need to reach Geothermal By Design, LLC directly: (502) 216-8300
Geothermal heat pump installations in Kentucky may require drilling permits, environmental site assessments, and compliance with local well and thermal energy regulations. Requirements vary by jurisdiction and system type (vertical, horizontal, open-loop). Contact your local municipality, state energy office, or a licensed geothermal installer for specific permitting requirements in your area.
