Littleton, Colorado, Geothermal Heating & Cooling We're spreading the word throughout Littleton, Colorado: in in the condition the economy is in today, geothermal heating and cooling is definitely the smart way to go! Soil conditions in Littleton are just right. And our seasonal temperatures? They vary enough in extremes to practically guarantee that geothermal heating and cooling will give you the best year-round satisfaction. You'll also enjoy how much a geothermal system can reduce your energy expenses, too. The proof? Our Geothermal Savings Calculator. Contact Sensible Heating & Cooling today. We've got quite a bit more to tell you about the advantages of geothermal heating and cooling in Littleton. Another great thing, we install and service WaterFurnace geothermal systems, the best on the market.