Damp Proofing

Paint bubbling up and black spot marks in front room

Anonymous user 14/03/2024 - 2.31 PM

Hi I live in mid terraced house, not sure how old sorry, but the outside front is stone with brick around the window bays and door. Don't now much about the house moved in about a yr ago. The possible damp is in my front living room, just where the wall under the bay windows is. What I can see is the paint bubbling up and black spot marks. I have had two people to have a look and both said completely different things, the first said he will have to take it back to the brick then re do it all as there was no condensation and he says it looks like it has had a damp course of the drill holes in the wall. Also he said something about the air vents I already have outside so that ruled something else out. The second said it is because the house is over a 100 years old and the cavities have failed and advised me to replaster or just to re decorate every year. Also I would like to add the whole ground floor is concrete sub floor except this room which is timber. Can anyone explain why this may be? Thanks in advance to any advice :)