Encon Commercial Services

Over 150 commercial accounts across the Boston area, by Encon Commercial Services' own count — this Danvers HVAC, electrical, and plumbing outfit is built around building managers and property operators, not typical single-family calls. Its own website has since folded into Breen & Sullivan Mechanical Services, a Wilmington mechanical contractor that announced a partnership with Encon; Breen & Sullivan says it has served the greater Boston area since 1992, though a separate business-data listing puts Encon's own founding at 2018 — worth asking directly which history and warranty now apply to the combined company. Google shows a 3.8-star average across just 4 ratings, a small sample. The one written review from the past few months calls the service fast and friendly and says the reviewer would recommend the company, and a directory summary of two other reviews describes the same pattern. The history isn't uniformly clean, though: one account describes a leak test quoted at $600-800 that turned into a dispute over hours billed after a $150 deposit, and BuildZoom's scoring doesn't put the company in the top half of Massachusetts contractors. Because the business markets to commercial and multi-property clients, it's worth confirming upfront whether smaller or residential jobs are still taken on, and getting any quoted scope and hourly minimums in writing — the billing dispute on record centered on exactly that gap between an estimate and the final invoice. Post-partnership, it's also worth asking whether Encon or Breen & Sullivan is the one dispatching the crew and standing behind the work. This looks like a better fit for a facilities manager needing HVAC, electrical, or plumbing coverage across several buildings than for a homeowner with one repair — confirm who's actually showing up and get pricing terms in writing before booking.