Just a disclaimer - I'm not knowledgeable at this type of thing whatsoever, so apologies if I am asking a stupid question or not giving enough information. I noticed some of the wallpaper peeling on my living room wall a few months back, in October I think, and peeled off a bunch of it just with my bare hands with little to no effort, mainly because it was so damp. I would say this was going up about 1.2 meters, and was mainly either side of the living room wall (the other side is an exterior wall). I was quite worried obviously so I then called a few different tradesmen to get opinions, but I had a variety of different things said to me, I got so confused and felt none of them were being truthful, so I ended up not taking on any of them (probably the worst solution I know!). Earlier today I went in there and was able to peel off much more wallpaper, a bit further up and to the sides of where I had peeled off before, so it seems like it is getting worse. Here is some of the things I was told before: Person A: Damp proof course has possibly failed, so need to do chemical injections/hack off plaster/replaster Person B: Exterior window reveals are in bad condition so need to be redone Person C: Need to re-render whole of front of house because rendering may have blown With person A, I was a bit sceptical because he was a damp proofer so I guess he is obviously going to tell me that (although maybe what he suggested is actually necessary, not sure). Persons B and C were 2 different builders. With person B's suggestion, can a 'failed' window reveal really cause dampness across the whole wall to that extent? And with person C's suggestion, I wasn't convinced either because the upstairs front facing rooms are not damp to the touch at all. Thanks in advance for any help.