Mould on plaster boards

Hi I've spotted mould on the plaster boards as the renovation is taking longer than expected. Will it's cause an issue later on an how should I deal with it? New plaster boards? My builder said it's nothing an just gave it a wipe down. Buy I'm spending soo much on renovating I don't really want anyone issues later on with mould growth. Thank you

Asked by Lubina on 10th Mar 2025
Expert Trade Answers
"Hi if its new plasterboard board has a mould than that's not good can be problems whit instulation and maybe not have air gap for wall it's always bee a mould iif don't have air gap and or insulation thanks"
Answered on 10th Mar 2025 - Member since Nov 2023 - report
"100% change the boards, once mould grown on boards the strength and integrity of boards compromised.
They cannot be used."
Answered on 10th Mar 2025 - Member since Feb 2025 - report
"Yes, the mould will just wipe off. However, if the structural integrity of the plasterboard has been affected. I.e. it looks like wet weetabix, that is more of a problem. Your contractors should be offering some kind of guarantee or warranty. If there are any problems going to arise, they will show in the first 12 months. Difficulty is getting them back if there is a problem. Maybe suggest a small retention, but it’s not likely to cover the cost of ripping out and replacing. Best to confirm your concerns in writing and agree a guarantee/ warranty that you can use in small claims court in future. Plus take lots of photos"
Answered on 10th Mar 2025 - Member since May 2024 - report
"There should not be mould on the boards period, there is no excuse for it. The builder may have wiped it off but that is no guarantee that it hasn't been contaminated by mould spours. It is possible that you could get away with it but in reality by the book is should be replaced. I would question why the builder let this occur in the first instant is probably the question that should be asked."
Answered on 10th Mar 2025 - Member since May 2024 - report
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