M.J. Carr Electrical Services, LLC

Call M.J. Carr when the power's out mid-storm or a panel needs real work — the calls that come in lately keep landing on speed. The Marshfield shop is owned and run by Matthew Carr, a master electrician who says he's covered South Shore homes and businesses, including Hanover, Cohasset, and Pembroke, for over 20 years. That reputation holds up across platforms: Google shows 174 ratings averaging five stars, Birdeye lists 190 reviews at a perfect 5.0, and the company carries an A grade with the Better Business Bureau. Six reviews have posted since January, all five stars, with no complaints among them. One recent customer called the response instant and the booking easy; a repeat customer described the company as their go-to electrician after several visits. When a snowstorm knocked out heat for one household, M.J. Carr got things running again on short notice, and another customer got a full, written set of instructions from Matt himself to restart a stalled generator. Independent write-ups describe the same pattern of hands-on diagnostic troubleshooting rather than simple part-swapping, and the company turns up on a published list of Marshfield's better electricians. One thing worth asking about: the company hasn't pursued formal BBB accreditation, even though its underlying grade there is an A — common for a small, owner-run shop, but worth a question if a formal seal matters to you. This is a solid call for panel and breaker work, generator troubleshooting, and repairs that can't wait for a callback — the pattern here is a small crew with a long, clean run across five years and five different review sites. Confirm the scope of work and get a number in writing before booking, since neither the public reviews nor the company's own site touch on pricing.