I hired MZ Electric to do an upgrade for just one panel in the house. It was my first time using them and I got a hold of them through a referral. It was only two people who came to do the job, but I thought that they were professional and they made sure to clean up the job when they finished. I would use them again in the future because of the work quality from this most recent service. I appreciate that the company follows through and the workers stayed until the work was completely finished. I would recommend them to other people.