So, for a geothermal heating and cooling system, the average low cost is $17,000, the average middle cost is $24,500, and the average high cost is $32,300. Featured Partners. Advertisement.

Carrier Heating and Cooling is a HVAC company with a reputation for excellence. The company has been in business over 100 years, providing a wide range of products for customers of all kinds.

The best smart thermostats we've tested can control your home's heating and cooling with your phone or voice—and might help you save on energy costs. Skip to Main Content. Menu.