I have a semi detached property and had several things done to no avail, i have a cupboard space under the stairs next to the front door.under the stairs it is bare brick walls and they are soaking i mean the walls are sparkling when you shine a torch in there, everyone says condensation but i have no clue on how to fix the problem at my wits end now i just need to know how to fix it p.s ive just had my air bricks done so none of them are blocked and ive had a small air brick put in under the stairs where ive got the problem but still got the same issue