Professional service!
I have been using Malcolm Plumbing & Mechanical for many, many years. I use them for many things, but primarily I have them come every August to check the backflow prevention valve. They always do a thorough and competent job. But lately, the price has been going up. I have nothing negative to say about their service, it's just getting more expensive to use Malcolm Plumbing & Mechanical. Four and a half stars!