We have had many funky electrical problems over a year or so, including apparent burnt-out electrical sockets and funny-acting lights. The electrician showed up exactly when promised, and quickly diagnosed our problem (accurately). He didn't have all the parts he needed, but ran out to the local hardware store and got the required parts. He didn't charge for the extra time this took to get those parts. He made sure everything was working perfectly before he left our house. Mr. Electric was fast and accurate. He cleaned up his mess before he left our house. I've given our review under their Newmarket address but I believe they have a location in Concord or Maple, and that was the location we actually called. We recommend them to friends and family, without hesitation.