About AGB Geothermal

AGB Geothermal has been proudly serving Bethlehem and the surrounding area of NH and VT with top-of-the-line products, service, and maintenance for nearly 15 years and hope to do the same for you.

Our owner and operator, Peter Duguay is an Honorably Discharged Combat Veteran of the U.S. Army, and to every job he brings with him The Army's Seven Core Values; Loyalty, Duty, Respect, Personal Courage, Selfless Service, Honor and most importantly Integrity. Peter is happily married to Rebecca and has three boys, Arthur, Everett and Hayden and welcomed the arrival of a baby girl in 2020, Ruth.

Peter is a proud member of the International Ground Source Heat Pump Association (IGSHPA member #17867-0708), he is also a certified Building Analyst Professional (BPI #5032735), EPA certified (#P42A4FE58CFC532F1) as well as Quality Assured (QA) recognized from the ACCA which allows us to install Geothermal for Energy Star qualified homes.

We install WaterFurnace Geothermal products which have industry-leading warranties and performance. We also update, replace and service all Geothermal system brands. We are now offering a new Geothermal product- Well-connect Geothermal systems in both installed and DIY packages. Learn more: Link to Geothermal Products page.