Geothermal.contractors

Cushing & Sons, founded in 1972 and headquartered in Surry, New Hampshire, has been installing geothermal heating and cooling systems since 1981 — among the earliest adopters of ground source technology in New England. Now in its fourth generation of family ownership, the company is a member of the New England Geothermal Professional Association (NEGPA) and is fusion-certified and IGSHP-trained. They install both closed-loop and open-loop geothermal systems, with documented expertise ranging from single residential boreholes to large commercial bore fields. Their landmark project at Kingswood Regional School in Wolfeboro involved 320 boreholes at 400 feet each — the largest closed-loop geothermal installation in New Hampshire history. Cushing & Sons also provides water well drilling, pump installation, water treatment, and hydrofracturing throughout New Hampshire, Vermont, and Massachusetts. Verified active operator per https://cushingandsons.com + https://negpa.org/geo-businesses/cushing-and-sons-inc/ (Bundle 5 audit 2026-05-29)