The Geothermal Name to Trust in New Haven Forgive the over confidence, but that would be us: Dever Enterprises! New Haven, Kentucky, homeowners have been looking to us to meet their geothermal heating and cooling needs for years, now. We'd like to earn your confidence, too. If you've been thinking of “going geothermal” but have put it off, you can definitely trust us on this: given today's unstable economy, there's never been a better time to discover the savings a geothermal heating and cooling system can offer. Want facts? Do a little simple math with our Geothermal Savings Calculator. Then contact Dever Enterprises for the finest geothermal system installation and service in New Haven - and beyond! Oh ... and talk about trust: We install geothermal heating and cooling systems by WaterFurnace. That's a brand that resounds in the geothermal industry.