How To Clean Mold On Painted Walls. If the drywall crumbles to the touch or has large cracks in it, consult with a professional on how to proceed. How to remove mold from walls.
Don't use bleach water in a bottle if you have carpeting or nice flooring underneath, ad you will damage the floor surface with the bleach.
Black mould is often a result of condensation. Apply paint afterwards to give the wall a new finish. Mold and mildew on painted walls pose respiratory health risks in addition to ruining the wall's appearance. How to remove mold from walls.