Hi all, I have a small dormer approx 2.5 metres wide similar height, with a sloping flat felted roof. The exterior is painted wood weather board which is on each side of the dormer and on the front around the main window. The boarding is looking pretty tired now so I am looking to get the weather board replaced with tiles and the roof re-felted plus new guttering. The house is a chalet bungalow and the dormer extends out from the main roof. Would you be able to provide some approx idea as what this is likely to cost me? Many thanks in advance.