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The contractor demonstrates strong response times and system reliability, with technicians diagnosing and resolving geothermal issues quickly, including emergency repairs completed within hours and complex installations handled despite challenging property conditions. Technicians provide thorough troubleshooting, clear explanations of system operation and improvements, professional installation quality with proper cleanup, and consistent follow-up communication, with the company also managing warranty incentives and financing options for system replacements.
Based on Google reviews
About the Contractor
Bill Wenzel Heating & Air Conditioning, Inc., located at 16 Broadway in Amherst, New Hampshire, has specialized exclusively in geothermal heating and cooling since 1997, now representing three generations of heating industry expertise. Recognized as a WaterFurnace GeoPro Master Dealer — the manufacturer's highest dealer tier — the company installs the full WaterFurnace product line including the 3, 5, and 7 Series units. The team holds IGSHPA Certified Installer credentials, ACCA Quality Assured contractor status, and is a founding member of the New England Geothermal Professional Association and a corporate partner of GEO, the Geothermal Heat Pump Consortium. Bill Wenzel serves residential and commercial clients across New Hampshire and Massachusetts, with 25-plus years of verified installations and a consistent recognition as the region's top-rated geothermal installer. Monday through Friday, 8 AM to 4 PM.
#1 rated IGSHPA-certified geothermal installer in region with 25+ years of WaterFurnace system expertise and three generations of heating industry experience.
Service Details
schedule
Years in Business
29 years
factory
Brands Installed
WaterFurnace
water_drop
WaterFurnace
Authorized Dealer
Business Hours
Mon8a-4p
Tue8a-4p
Wed8a-4p
Thu8a-4p
Fri8a-4p
SatClosed
SunClosed
Service Area
Serves 1 area across New Hampshire
Amherst
Regulatory Context
Geothermal Permitting in New Hampshire
Geothermal heat pump installations in New Hampshire require specific permits and compliance with state regulations regarding well drilling, loop installation, and refrigerant handling. Contact your local building department for specific requirements in your area.
Bill Wenzel installs WaterFurnace units spanning the 3, 5, and 7 series with EER ratings reaching 47.0 and COP values up to 5.4. The 7 Series 700A11 model delivers exceptional efficiency with 47.0 EER and 5.2 COP.
Geothermal heating and cooling is four times as efficient as traditional HVAC systems and costs less to operate. According to the EPA, geothermal systems are the most energy-efficient, environmentally clean, and cost-effective space conditioning systems available today.
Bill Wenzel is a Certified Installer for the International Ground Source Heat Pump Association (IGSHPA), holds ACCA Quality Assured contractor status, is a founding member of the New England Geothermal Professional Association, and is a corporate partner and member of GEO, the Geothermal Heat Pump Consortium.
Bill Wenzel Heating & Air Conditioning has over 25 years of proven installation experience, having been established in 1997 and now representing three generations in the heating industry. The company is rated #1 in sales and service of geothermal heat pumps.
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If you need to reach Bill Wenzel Heating & Air Conditioning, Inc. directly: (603) 429-8082
Geothermal heat pump installations in New Hampshire may require drilling permits, environmental site assessments, and compliance with local well and thermal energy regulations. Requirements vary by jurisdiction and system type (vertical, horizontal, open-loop). Contact your local municipality, state energy office, or a licensed geothermal installer for specific permitting requirements in your area.
