Geothermal Heat Pump

A geothermal heat pump uses the earth's stable underground temperature to heat and cool your home, offering remarkable energy efficiency year-round. These systems work by circulating fluid through buried loops, transferring warmth in winter and absorbing heat in summer. Installation requires specialized knowledge of your property's soil and layout. Angi connects you with local pros and resources to help you explore this sustainable comfort solution.
Geothermal Heat Pump Service Articles and Advice
Tyler Lacoma  •  Apr 10, 2026
Geothermal Heat Pumps in Floor Heating: Pros and Cons
Considering hydronic floor heating? Here’s why a geothermal heat pump in floor heating could be a great choice for your home, plus some issues that can arise.
Alison Kasch  •  Apr 10, 2026
Geothermal Heating and Cooling Garage Floors: What to Know
Looking for an energy-efficient way to keep your garage comfortable? Learn about a geothermal heating and cooling garage floor system.
Lacy Brunnette  •  Apr 10, 2026
Is Geothermal Worth It? What to Know If You're Considering Switching
Reducing your home’s fossil fuel dependency often pays off. Here’s what to know when you’re considering if geothermal is worth it.
Kat Brancato  •  Apr 10, 2026
What Is A Geothermal Heat Pump? How It Works
What is a geothermal heat pump? We’re breaking down what this system is and how it can make your home more energy efficient.
Sara Coleman  •  Apr 10, 2026
11 Big Benefits of Geothermal Heating and Cooling Systems
Geothermal heating and cooling systems come with many perks for homeowners who want to make the switch from a traditional HVAC system. Learn 11 benefits of geothermal systems.
Laura Hennigan  •  Apr 6, 2026
Why Soil and Other Factors Impact Your Geothermal Heat Pump Efficiency
The ground beneath your home will determine whether a geothermal heat pump system will perform its heating and cooling duties. Is your home suitable for an uber-efficient GHP?
Laura Hennigan  •  Apr 5, 2026
How to Ensure You Hire the Right Geothermal Heating Contractor
As geothermal systems have gained popularity, so have the number of contractors. Learn how to choose the right pro for your geothermal installation.
Allie Ogletree  •  Apr 5, 2026
How to Buy a Geothermal Heat Pump and Reap Instant Rewards
Looking to buy a geothermal heat pump but don’t know where to start? Read this to know what you need to do to choose the best geothermal heat pump system for your home.
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Common Geothermal Heat Pump Service Questions

Geothermal heat pump costs range widely depending not only on the size of the pump, but how easy it is to install in your ground. These heat pumps are generally rated by the ton, with a ton equaling around 12,000 BTUs of heating potential. A one-ton model can cost between $2,500 and $8,000, while a large five-ton model can cost up to $40,000.

To maintain a geothermal system's efficiency and longevity, it's important to perform regular maintenance. This includes annual inspections, filter replacements, loop system checks or flushing, and checking the heat exchangers.

You’ll need roughly 1,200 to 1,800 feet of space in your yard for a geothermal heat pump. The exact amount of space depends on the size of the system. You’ll need more than that for a unit that’s over 3 tons but less for a unit under 3 tons. Most mid-size, single-family homes only need a unit that’s 3 tons.

If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a furnace or oil boiler. However, there are geothermal systems installed that include a backup in case the heat pump fails due to extreme cold. This is simply a backup heat pump you’ll likely never need and not an alternative heat source.

The most obvious downside is the high upfront cost of buying and installing one of these systems. Additionally, sometimes the system can take a longer time to heat than alternatives like a boiler. Also, if something goes wrong with the geothermal pump, repairs are often significantly more expensive than repairing traditional, above-ground heat pumps.