I called James yesterday after finding this thread as I was need of an urgent plumber after the person I had previously booked failed to show. James came around a few hours later to help fix the problems - fixed everything needed in very short time, new waste fitted to a sink, isolation valves on pipes leading to taps, leaking waste on a different sink, leaking valve on a new radiator, plus organised his colleague to connect a new gas hob. Wholeheartedly recommend - was pretty much the most efficient plumber I've ever come across. Plus a very nice guy. He'll be my first call next time I need someone.