Geothermal.contractors

Dobbert Heating & Air Conditioning, Inc., operating as The Dobbert Companies, is a family-owned mechanical contracting firm founded in North Adams, Massachusetts in July 1974. The company provides HVAC, plumbing, fire sprinkler, and sheet-metal services for residential, commercial, and industrial clients across Massachusetts, with locations serving both Nantucket and The Berkshires. Ground-source heat pump (geothermal) installation is among the HVAC services offered alongside conventional heating, ventilation, and air-conditioning systems. Dobbert has developed depth in hospitality and institutional projects across Berkshire County, including work for cultural and commercial venues, and is licensed across multiple Massachusetts trades. The firm maintains a workforce of technicians available for installation, maintenance, and service. Dobbert's Nantucket office is located at 38 Surfside Road, Nantucket, MA, and its North Adams office serves Berkshire County clients. Verified active operator with geothermal service per https://dobbertcompanies.com/hvac-services/ (Bundle 4 audit 2026-05-28)