We have mould growing on the inside of an external wall which has only appeared in the last few weeks with the cold weather. The bulk is on the skirting & low level wall but there is some on the ceiling (we have a flat roof).

Its only really in the bedroom but we are seeing the odd spot in the lounge so the whole wall could be affected.

Same happened last year but not as bad (5 months after new gutters fitted) and we also had wooden windows replaced with double glazed pvc this summer.

We would need a professional to assess the possible causes & advise of the work required to fix and the cost to do so.

We are a ground floor flat so would require a quote to provide to the committee in order to get the go ahead for any work.

Thanks in advance