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The Dobbert Companies

The Dobbert Companies

HVAC ServicesFire Protection/Fire SprinklerPlumbing

About Us

Founded over 50 years ago with 10+ years of continuous operations on Nantucket, The Dobbert Companies is a family-owned, privately-held, premier mechanical contracting company that provides comprehensive installation, maintenance, and servicing of fire sprinkler, heating, ventilation, and air conditioning (HVAC), and plumbing systems for academic, commercial, high-end residential, and industrial building owners, engineers, and general contractors.

We offer considerable experience with projects that present significant historic and environmental restrictions, as well as with fast-track, high-stakes projects.


  • Plumbing
  • Fire Protection
  • Sheet Metal
  • Mechanical Contractor