We'll Help You Save with Geothermal in Brunswick County! Want an idea of just how much a geothermal heating and cooling system could cut your energy bills in Brunswick County? Our handy Geothermal Savings Calculator will show you. Just enter in your information and get ready to be satisfied. Obviously, to reap the full benefits of a geothermal system, you need the right system - and the right contractor to install and service it. You need a WaterFurnace system from O'Brien Service Company, the best geothermal heating & cooling contractor in Brunswick County, North Carolina. Contact O'Brien Service Company today and let us show you more of the benefits you'll love with a WaterFurnace geothermal heating and cooling system. We'll also walk you through why our installation and service have won a lot of geothermal converts in Brunswick County.