2026 Price Guide
Geothermal Heat Pump Cost in St. George, Utah
Average installed cost: $20,000–$49,000. After 30% federal tax credit: $14,000–$34,300.
Average Installed Cost
$20,000–$49,000
Before federal tax credit
30% Federal Tax Credit
−$6,000–$14,700
Available through 2032, no cap
Net Cost After Credit
$14,000–$34,300
Typical homeowner out-of-pocket
Geothermal Cost Factors in St. George
Desert soils with low moisture content require deeper or longer loops; costs are near average due to competitive contractors. Within St. George, the biggest cost variables are:
- →Loop type: Vertical loops (200–380 ft deep) cost more but need less land. Horizontal loops require 5,000–10,000 sq ft of yard space but are cheaper to install where land is available.
- →Home size: Most residential systems run 2–5 tons. Plan for $4,000–$8,000 per ton of system capacity, all-in.
- →Getting multiple quotes: Prices from St. George-area contractors can vary 15–25%. Comparing at least 3 quotes is the single easiest way to reduce your cost.
Is Geothermal Worth It in St. George?
Mixed-cold climates balance heating and cooling savings, with most systems paying back in 6–10 years. St. George homeowners typically save 35–60% on annual energy bills annually compared to a standard heat pump or gas furnace.
The 30% federal tax credit makes the math even more compelling. On a $35,000 system, that's $10,500 back at tax time — with no income cap and no system cap.
Incentives Available in St. George, Utah
Federal 30% Tax Credit
All St. George homeowners qualify for the Residential Clean Energy Credit — 30% of total system cost, no cap, available through December 31, 2032.
Utah State & Utility Programs
Rocky Mountain Power and Dominion Energy Utah have offered efficiency incentives; check current programs.