Hattiesburg, Mississippi, Geothermal Heating & Cooling We're getting the word out in Hattiesburg, Mississippi: in today's economy, geothermal heating and cooling is absolutely the right choice! Ground conditions in Hattiesburg are perfect. And our seasonal temperatures? They change enough in highs and lows to almost guarantee that geothermal heating and cooling will give you the best year-round satisfaction. You'll love how much a geothermal system can cut your energy expenses, too. The proof? Our Geothermal Savings Calculator. Contact BC's Heating and Air today. We've got a lot more to tell you about the benefits of geothermal heating and cooling in Hattiesburg.