Williamson, New York, Geothermal Heating & Cooling We're spreading the word throughout Williamson, New York: in today's economy, geothermal heating and cooling is definitely the right choice! Soil conditions in Williamson are perfect. And our seasonal temperatures? They fluctuate enough in highs and lows to virtually guarantee that geothermal heating and cooling will offer the best year-round comfort. You'll love how much a geothermal system can cut your energy expenses, too. The proof? Our Geothermal Savings Calculator. Contact Van Hee Mechanical today. We've got a lot more to discuss with you about the benefits of geothermal heating and cooling in Williamson. Another great thing, we install and service WaterFurnace geothermal systems, the best on the market.