Geothermal Heating & Cooling: Bulverde's Choice! To be perfectly accurate, let's put it this way: more and more Bulverde residents are finding out that geothermal is the smarter heating and cooling choice. And we're helping them see that. We're Southwest Mechanical Services. And we understand all about the perks of geothermal heating and cooling. After all, we've been installing and servicing geothermal systems for years. What makes geothermal a no-brainer here? To start with, Bulverde is situated in an area with perfect soil conditions for geothermal installation. We've also got the kind of changing temperature extremes that let a geothermal system demonstrate its year-round comfort potentiality to best effect. Think about the savings, too. Our Geothermal Savings Calculator can provide you with a good idea of what they'd be for your family. Learn more. Contact Southwest Mechanical Services, your Bulverde, Texas geothermal authority.