Hi, hoping for some help. Been let down by a few tradesmen already. We have plaster crumbling around a kitchen window. Think it's due to water ingress from blocked gutter outside. Reckon it needs stripped off, sealed and replastered. Also small part of front wall below window is damp to touch. Might need damp proofing. It's a terraced house Antrim road belfast area. Can someone trustworthy take a look and give us a price please.