Lower Your Heating Bills.
Permanently.
Geothermal heating and cooling is the most affordable, reliable, and sustainable solution for New Hampshire and Vermont homeowners — and AGB Geothermal has been installing it for nearly 20 years.
We help every homeowner find a path to geothermal — with support for rebates, tax credits, and financing programs that fit any budget.
Answer a few quick questions about your current heating system to see which type of geothermal system is a good fit for your home.
Why Geothermal. Why Us.
The Smart Choice for NH & VT Homeowners
Geothermal isn't just an upgrade — it's a permanent solution to high heating costs, unreliable comfort, and fossil fuel dependence.
Affordable Heating & Cooling
Cut your energy bills by up to 70%. Geothermal is the most cost-effective long-term solution for NH & VT homeowners — and we help you access every available rebate and financing program.
Reliable Year-Round Comfort
No more worrying about fuel prices or equipment failures. Geothermal delivers consistent, even comfort in every season — from bitter NH winters to humid summer days.
Sustainable for the Long Term
Tap into the earth's natural, renewable energy. Ground loops last 50+ years. Heat pump equipment averages 25 years. It's the last heating system your home will ever need.
Nearly 20 Years of Local Expertise
Since 2007, AGB Geothermal has been the trusted name in geothermal installation across New Hampshire and Vermont. Hundreds of happy homeowners. Proven results.
How It Works
The Earth Is Your
Free Energy Source
Just a few feet underground, the earth maintains a constant temperature year-round. A geothermal system uses that stable energy to heat your home in winter and cool it in summer — at a fraction of the cost of oil, propane, or electric heat.
Our team designs and installs the right system for your property — whether that's a WaterFurnace system using a vertical or horizontal loop or our innovative Well-Connect hybrid system using your existing water well. We have something for every home and every budget.
"We cut our heating bill in half the first winter."
— NH homeowner, Concord
Rebates & Financing
Geothermal Fits
Every Budget
We don't just install systems — we guide you through every available incentive so you get the best possible return on your investment. Most homeowners are surprised by how affordable geothermal really is.
- NH & VT state rebate programs
- Utility company incentives
- Low-interest green energy financing
- Flexible payment plans and leasing options for every budget
Ready to Stop Paying
High Heating Bills?
Take the first step today. Answer a few quick questions about your home and heating system — or book a free phone consultation with one of our geothermal experts.
Book a time for one of our team members to call you, answer your questions, and discuss next steps.
Answer a few quick questions about your home and we'll help determine if geothermal is the right fit.
No obligation. No pressure. Just honest advice from NH & VT's most trusted geothermal team.