We had a bad experience with Nick as he recommended to perform a couple of jobs that didn't actually fix the problem we had in our piping (water hammer+Noise). I don't think he has any expertise to find out any plumbing issue. Unfortunately, we wasted our money with him. He wasn't honest or clear about the job and proceeded to do some work without advising the risk. We found this very unprofessional. In addition, he doesn't offer price-value and punctuality isn't one of his strengths. I would use him only if you have a particular thing to do like changing a tap or something like that, but don't trust him if you need a more professional job. He claims to have the experience and knowledge, but in our case he didn't at all.
He also did less than what he promised and the price didn't change.