I’m moving to the area shortly and need someone to come in and do a deep clean on some dark mould on our ceilings.
They would need experience and their own PPE and equipment. Some of the mould is over a staircase.
If it’s black mould then you’ll really need specialist cleaning company in to get rid of it and deal with the spores, rather than just cleaning it off the surface. We had to get a deceased relative’s flat deep cleaned of mould last year (outside of London though) before putting it on the market - we googled mould removing companies and got a few quotes. It wasn’t cheap - quotes were between £600 and £1000 for a two bed flat…