True Electrical Company

Electrical work in Chelsea requires a permit under 527 CMR 12.00 and a licensed Journeyman or Master electrician; for the city's many multi-families, the wiring inspector scrutinizes service separation and labeling. A rewire gets a rough inspection before walls close, and a service upgrade gets a final before reconnection. In Chelsea's packed two- and three-families, coordinating the upgrade with Eversource and shared meter banks is often the slow part. Only like-for-like device swaps skip the permit.

Chelsea sits in the Boston metro band, so rates run high. A 100A-to-200A panel upgrade typically runs $3,000–$5,500, more if a multi-family service must be split or the meter bank rebuilt. A Level 2 EV circuit is usually $1,000–$2,500 given tight basements and long runs. A full knob-and-tube rewire on a three-family commonly reaches $15,000–$30,000+ because of building size and plaster walls. AFCI/GFCI and device updates during a remodel add several hundred to a few thousand dollars.

Massachusetts requires a written contract and a Home Improvement Contractor registration for most residential electrical work; ask for the registration number and check it before paying a deposit.

More on permits, costs, rebates and common questions, plus every other electrical contractor serving the town, on the Electricians in Chelsea page.