Hi I was just wondering of anyone could advise me. I purchased a 1937 semi last year in a state of internal disrepair. Over 7months it was rennovated re plumbed new kitchen/ bathroom and replastered. The mortgage survey had no evidence of damp and when whilst we were renovating it there was no evidence of damp on the old plaster. The plumber covered up the airbricks in the living room for some reason saying they were not needed. Since moving in last august there are damp patches rising to about 20-30cm on an internal wall of the living room, but none the other side of the wall which is the hall and the Skirting boards appear fine . The house has an old damp proof course, it is not cavity walls. The floor is parquet and In very good condition. I believe the adhesive is bitumen on solid concrete. Not sure what the solution is. I really don't want to have to redecorate again. And I'm worried about getting ripped off for damp proofing if it is not needed. Some of the outside gutters need repairing but these are not near this room not sure if that would have an effect. Any advice greatly appreciated.