The Geothermal Name to Trust in Madison Forgive the pride, but that would be us: Nero Air Conditioning and Heating! Madison, Connecticut, homeowners have been looking to us to satisfy their geothermal heating and cooling needs for years, now. We'd like to earn your confidence, as well. If you've been wanting to "go geothermal" but have been holding off, you can certainly 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 proof? Do a little simple math with our Geothermal Savings Calculator. Then contact Nero Air Conditioning and Heating for the very best geothermal system installation and service in Madison - 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.