Thank you both very much for the comprehensive answers.
I now feel much more confident and informed to deal with the issue when hiring a plasterer.
Best Regards
Rob
It was just that the research I've done in salt effervencense after your reply says that the residue is white in colour.
I meant what chemicals or solution would you recommend to rid the stonework of salt. I've seen a product called salt neutraliser and wondered whether this would help before...
Thank for he reply.
Is it right that salt efforvensence can be yellw/brown in colour, maybe to do with the colour of the stone?
Any advice how to treat this problem?
Hi. I have a major problem on one interior wall.
I live in a 100 year old stone brick building and occupy the top (1st floor).
One exterior wall in the master bedroom, one side of which is next to a window the other a corner, is covered in patches of yellowy/brown powder from approximately...
Hi.
The wall I'm about to drill through for my cooker hood extractor has an unused/blocked off chimney flue running directly where I need to drill.
Is it OK to drill and fit the extractor?
Thanks