Demir Sen

Demir Sen is a one-man electrical outfit working out of 3 Madison Street in Methuen, and the thing that stands out is the permit trail: 87 permitted jobs on file, 18 of them in the last three years. The overwhelming majority are residential rooftop solar — photovoltaic arrays with microinverters, occasionally with battery storage. The rest of the work is the bread and butter of a working electrician: sub-panels, EV charger circuits, whole-house recessed lighting, and the wiring side of heat-pump installations. Two of the permitted jobs are commercial — a large rooftop array in Mattapan and sign and pendant lighting on Longwood Avenue in Boston — but the pattern is homeowner work. The geography is unusually wide for a solo tradesman. Permits run from Newbury and West Newbury on the North Shore down through Boston, Brookline, Milton and Newton, out to Carlisle, Boxborough, Weston and Waltham, and as far as Attleboro, Norwell, Wareham and Pocasset on the Cape side. That is the footprint of someone subcontracting to solar installers across the state rather than a neighbourhood electrician, so ask whether Methuen-area service calls are something he still takes. The customer record is where this gets thin. Two written reviews exist and both are dated to 2020, giving a 5.0 average off a very small, very old sample from a single directory. Nothing more recent has been written anywhere that turned up, so there is no current read on scheduling, pricing or follow-through from people who hired him lately. The licensing display needs care too. BuildZoom shows what looks like four credentials but is really one number, 22897, printed three separate times — once as a Massachusetts electrician licence it checked as active in April 2026, and twice as an identical City of Newton electrical contractor registration marked unverified with a July 2022 expiry. A fourth entry claims no licence is required to be an electrician in Massachusetts, which is simply wrong and contradicts the record directly above it. He is a reasonable call if you want solar or a panel and charger upgrade from someone with a long permitting history. Before booking, look up licence 22897 yourself on the Massachusetts electricians board, ask about the Newton registration, and ask for two or three references from jobs finished this year.