2026 Price Guide
Geothermal Heat Pump Cost in Missouri
Average installed cost: $18,000–$46,000 before incentives. After the 30% federal tax credit: $12,600–$32,200.
Average Installed Cost
$18,000–$46,000
Before federal tax credit
30% Federal Tax Credit
−$5,400–$13,800
Available through 2032, no cap
Net Cost After Credit
$12,600–$32,200
Typical homeowner out-of-pocket
What Affects Geothermal Cost in Missouri?
Central location, competitive drilling market, and moderate soils keep Missouri costs below average. Several factors determine where your project lands in that range:
- →Loop type: Horizontal loops cost less to install but require more land (typically 5,000–10,000 sq ft). Vertical loops (150–300 ft deep in Missouri) cost more per ton but work on smaller lots.
- →Home size: Most residential systems are 2–5 tons. Each ton of capacity adds roughly $4,000–$8,000 to total cost including equipment and loop work.
- →Existing system: Replacing a forced-air furnace is simpler than converting from baseboard heat or radiant, which may require ductwork or buffer tank additions.
- →Installer: Getting 3+ quotes from local Missouri contractors typically reduces cost by 10–20%. Use the list below to compare.
Is Geothermal Worth It in Missouri?
Geothermal heat pumps save Missouri homeowners 30–55% on annual energy bills compared to conventional HVAC. Mixed climates provide year-round efficiency gains, with typical payback periods of 7–12 years.
Unlike rooftop solar, geothermal systems have no weather-dependent output — they deliver consistent savings whether it's cloudy, calm, or the middle of winter. The ground loop carries a 50-year design life and requires essentially no maintenance. The indoor heat pump unit typically lasts 20–25 years.
MissouriGeothermal Incentives & Rebates
Federal 30% Tax Credit (All States)
The Residential Clean Energy Credit (IRS Form 5695) lets you deduct 30% of your total geothermal installation cost from your federal income taxes. No income limit. No cap. Available for systems installed through December 31, 2032. On a $35,000 system, that's a $10,500 credit.
Missouri State & Utility Programs
Ameren Missouri and Evergy offer efficiency rebates for heat pump systems in their service territories.
Frequently Asked Questions
How much does geothermal heating and cooling cost in Missouri?
Are there state rebates for geothermal in Missouri?
How deep do they drill for geothermal in Missouri?
How long does geothermal take to pay back in Missouri?
Top-Rated Geothermal Installers in Missouri
ECS Geothermal
Smithville, MO
★ 4.1 (25 reviews)
Peters Heating & AC (troy)
Troy, MO
★ 4.6 (66 reviews)
Classic Aire Care
St. Louis, MO
★ 4.9 (4989 reviews)
Hoot Owl Heating & Air Conditioning LLC
Butler, MO
★ 4.2 (42 reviews)
Roger's Htg & Clg Inc.
Osborn, MO
★ 5.0 (7 reviews)
Shuh & Sons
Sainte Genevieve, MO
★ 4.5 (35 reviews)
Full Geothermal Cost Guide
National averages, cost by system type, ROI calculator, and more.