Local businessLocal business
Verified record
AGB Geothermal installs geothermal heating and cooling, and says on its website that it has been doing so for nearly 20 years for New Hampshire and Vermont homeowners. The company lists free estimates among its offers.
Specializes in
Languages
1 change recorded — last scanned Nov 1, 2026.
Typical New Hampshire range for this kind of work, from regional averages — not a quote from AGB Geothermal. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,700 – $10,700
Typical HVAC project around $7,700
Prompt repair visits5.0
Water treatment installs5.0
Smoking plug fixed within a couple of hours5.0
Furnace heat restored within an hour5.0