can anyone help me i have black mould spreading quickly in my bay window i have treated with bleach but no good.
I have new windows fitted hoped that would help but no!
Starting to really frustrate me now as its looking rather unsightly
I have mould in the bay window (black spots). I have had new windows fitted and treated the mould with bleach but this seems to have only been a short cure. Its come back and seems to be spreading quicker than ever. can anyone suggest anything on this
