The Geothermal Name to Trust in Grand Rapids Forgive the pride, but that would be us: S&J Heating and Insulation, Inc.! Grand Rapids, Michigan, homeowners have been turning to us to meet their geothermal heating and cooling needs for years, now. We'd like to gain your confidence, as well. If you've been thinking of “going geothermal” but have been holding 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 S&J Heating and Insulation, Inc. for the top of the line geothermal system installation and service in Grand Rapids - and beyond! Oh ... and talk about trust: We install geothermal heating and cooling systems by WaterFurnace. That's a name that resonates in the geothermal industry.