Hi, have recently had new roof (batons, felt & tiles replaced), but my house has concrete gutters which are leaking badly. Rain water drips through cracks in the concrete gutters and there are also cracks in the outer wall rendering. Water seems to be gathering in between the wall cavity above my patio doors causing a severe damp patch across the full length of lintel and travelling down the reveals at each side of patio door. Don't know what to do for the best or which sort of tradesman to call out to deal with this problem. Any suggestions on the best course of action to take please? Thanks!