He had lots of good ideas and the refurbishment of the flat would now not be as stunning if it had not been for Mark. He replaced the boiler entirely. Never had a problem since. Another big plus for Mark is he knows what he is doing! He is a very able person. With that ability nothing seems any trouble for him. Makes it very easy to deal with him. I would personally recommend him for any plumbing or refurbishment work without hesitation.