We're the Geothermal Experts in Seguin! At Southwest Mechanical Services, we specialize in WaterFurnace geothermal heating and cooling systems. Seguin residents know we offer... the finest geothermal systems in the industry today finest geothermal installation and maintenance the kind of support that helps them recognize the complete comfort and energy-savings expected from a geothermal system (Our Geothermal Savings Calculator will suggest potential monetary savings. We think you like what you see!) In Seguin, Texas, we're clearly the geothermal heating and cooling contractor to call. Contact Southwest Mechanical Services today.