E and M Heating & Cooling

E and M Heating & Cooling is a small HVAC contractor based in Cambridge and Winchester, working on furnaces, air conditioning, ductless mini-splits and tankless water heaters for homes and businesses across the northern Boston suburbs — it lists Winchester, Woburn, Stoneham, Melrose, Malden, Medford, Boston, Waltham and Burlington among the towns it serves, and says it has been in business 10 years. There's no independent record to weigh yet — no reviews or other public mentions turned up — so there's nothing beyond what the company says about itself. It states it is licensed and insured but doesn't publish a registration number, so that claim hasn't been checked against the state registry; worth asking to see it directly before booking.