Geothermal is Big in Santa Teresa! Santa Teresa, New Mexico, residents love geothermal heating and cooling. And why shouldn't they? We've got the perfect soil conditions here. And our seasonal temperature extremes make geothermal installations the right choice for year-round heating and cooling comfort. Want to find out how much a geothermal system of your own could save you in Santa Teresa? Check out our handy Geothermal Savings Calculator. Then do what so many other Santa Teresa homeowners have done. Contact the experts at Sun City Plumbing & Heating. We'll help you plan your geothermal system, install it right, and make sure you get the service you need to get everything out of it.