The Geothermal Name to Trust in Hastings Forgive the over confidence, but that would be us: Comfort By Design, Inc.! Hastings, Wisconsin, homeowners have been looking to us to meet their geothermal heating and cooling needs for years, now. We'd like to earn your confidence, as well. If you've been thinking of “going geothermal” but have put it off, you can certainly trust us on this: given today's shifting 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 Comfort By Design, Inc. for the top of the line geothermal system installation and service in Hastings - and beyond! Oh ... and talk about trust: We install geothermal heating and cooling systems by WaterFurnace. That's a name that resounds in the geothermal industry.