J.M. Mechanical Services, Inc

J.M. Mechanical Services has been working out of East Boston for about 30 years, according to its BBB filing, which also gives the company an A+ grade even though it has never sought formal accreditation. Directories consistently place it as a plumbing and HVAC/mechanical contractor rather than a general remodeler — the kind of company called for a stopped-up toilet, a leaking pipe, or heating and mechanical repairs. BuildZoom puts its contractor score at 97, ahead of 82% of the roughly 139,000 contractors it tracks statewide, and on Google it holds a 4.1 rating from 11 ratings. The strongest thread running through its reviews is loyalty: one customer wrote this February that they've used JM Mechanical for about 20 years and it has "always great work," adding that the company stands behind what it fixes. That thread frays in the most recent review, posted this June, which describes "poor service, outrageous bill and bad attitude" — a sharp turn from the praise elsewhere and worth asking about directly. With only 11 Google ratings on record, there isn't a deep enough history to say whether that's a one-off or the start of a pattern, so it's worth pinning down pricing before any work begins. For straightforward plumbing repairs and heating or mechanical work in East Boston, this reads as a small, established shop with real repeat customers — just get the estimate in writing given the recent complaint about billing.