Just wanted to endorse this recommendation of Niko. I found Niko on the EDF and he has helped me out twice now with different issues - both times he was able to come around quickly, sorted the problem with little hassle, and for a good price. The first time it was a leak in my bathroom sink, the second time was to fit an outdoor tap. I couldn't believe how quickly he was able to sort both out for me - and while he was fitting the outdoor tap he spotted a problem with my kitchen tap which he then fixed and threw in for free. Niko is trustworthy, really easy to deal with and explains things well. Highly recommended. His number is 07818 607583.