I’ve got an ongoing problem with damp penetrating through an exterior wall of my house. I had that wall repointed, and then as that didn’t fix it, had it rendered but still the damp persists.
I’m not sure what to do next as the roof is in good order and so are the chimney pots and flashing so remains unclear where the damp is ingressing from.
But if it’s not the outside, do I know need to consider removing and replacing the interior plaster and putting some kind of sealant on the interior wall ?
The house is Edwardian. London brick Built good order overall.
Advice on how to proceed much appreciated.
Thanks in advance.