Best Pipe Installation in Phoenix AZ

We had a problem with out tankless hot water system. Suddenly cold water coming out of the faucet while I'm trying to wash my hair. To the point where I am ready to give up on showering altogether. Called Joe, he came very quickly and said that the thing should have been serviced regularly. Didn't know that so, my mistake. He rinsed the thing for a long time, all sorts of deposits came out. Very reasonable rate, $80.00 if I remember well. They do live close to where I am so I guess it was a short ride. That didn't fix it though, called him again and he did the same thing. No extra charge. Still a lot of deposits coming out of there. He recommended lowering the heat setting a bit, which we did. Problem not solved, because of the fact that we didn't service enough, the thing was practically completely calcified. So we got a new water heater, he installed it, looks great, works great, I'm washing my (very long) hair again without worries. Oh, yes, and by the way, he repaired our sink in the garage, no extra charge, it was such a minor thing. And he gave husband a hand with the dishwasher that had a broken piece for which we had ordered a replacement. But it needed some trick that we didn't know. No extra charge. Thank you Joe and Rebecca, great work. Don't hope to see you soon, at least not for a plumbing problem, but we know you'll be there for us when we need you.