We'll Help You Save with Geothermal in Austin! Want an idea of just how much a geothermal heating and cooling system could save you on your energy bills in Austin? Our simple Geothermal Savings Calculator will tell you. Just enter in your information and prepare to be satisfied. Of course, to reap the maximum potential of a geothermal system, you need the right system - and the right contractor to install and service it. You need a WaterFurnace system from Southwest Mechanical Services, the premier geothermal heating & cooling contractor in Austin, Texas. Contact Southwest Mechanical Services today and let us show you more of the advantages you'll enjoy with a WaterFurnace geothermal heating and cooling system. We'll also walk you through why our installation and service have won so many geothermal converts in Austin.