O'Brien HVAC, Inc.

O'Brien HVAC works out of 5 Archer Street in Swampscott, and its permit history is unusually varied for a small mechanical shop: 46 permitted projects, running from ductless mini-split installs in Beverly and Danvers houses to a lab fit-out for Dana-Farber in Boston. The through-line is air handling. Heat pumps, furnaces, condensers and the sheet-metal ductwork that ties them together — permitted across the North Shore and into Boston. BuildZoom scores the profile 100 and marks the Massachusetts sheet metal licence verified active as of February 2026; it also carries one older Newton record it marks inactive. Nobody has posted a review of the company anywhere it could be found, so there is nothing here on scheduling, pricing or how a warranty call goes. The permit trail is the substance: if you want a heat pump or a full duct system, ask which of those 46 jobs most resembles yours and whether you can see it.