Geothermal Heat Pump Cost in For most homes in the U.S., you’ll pay between $20,000 and $40,000 total for geothermal heat pump installation. If you have yard space for trenches, costs are usually lower. Small areas often need deeper vertical drilling, which costs more but uses less yard space. On especially complex sites, totals can approach or exceed $50,000, but … Continue reading Geothermal Heat Pump Installation Cost