Hi everyone, I hope you can help with my query. When we bought our basement flat, the surveyor used a damp meter and detected high levels in some of the internal walls, although he said as these had been plastered over and there was no visible damp coming through, I shouldn't worry about it. I've noticed recently that there is paint bubbling away from the wall at skirting board level. The bubbling was very minor, so I scraped a bit away to look underneath, and there was some black staining to the plaster, although not much. There was also evidence of crystalisation. Presumably this is rising damp, since it was plastered over before. My query is, should I ignore the surveyor and sort out this problem, and if so how? The floor is covered with parquet but I suspect it's concrete beneath since it's a basement. I have heard bad things about using chemicals to solve damp problems, but electro-osmosis sounds interesting. Any advice gratefully appreciated!
