We're the Geothermal Source in Isle of Palms! Isle of Palms people in the know turn to AGL Services Heating & Air Conditioning for all their geothermal heating and cooling needs. They trust us to provide not only the proper installation and service but also the knowledge to help them get the most from their geothermal systems. Considering a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a try. Just load it with your data and stand in awe of the results. Then, contact us, the Isle of Palms, South Carolina, geothermal experts at AGL Services Heating & Air Conditioning.