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.

'Nick was quick to respond and completed the job on the same day. Recommended!'

'I'm so pleased with the service from NickStar Plumbing. Nick has been fantastic to deal with - always on time, really professional on the job and he works easily around other trades on site. I would recommend his services very highly and will definitely be calling him for any future plumbing jobs!'

'Nick went out of his way for me, I cannot be more pleased with him, he was very reasonable and I cannot recommend highly enough. Honest and trustful too!'

'Nikola Babic was awesome in his workmanship and politeness. Totally satisfied with his service and highly recommend it to others locally. Thanks!'

'I have no hesitation in recommending Nick Babic at all.Excellent work.

'Thank you, job completed by Nick, very professional and friendly'

'Nick did the job well and I am very happy with what he has done. Hersh'