Hi everyone was just after some advice on a job I was asked to price today which I found a bit daunting. It had quite a large lean to conservatory and she wants the roof cleaning inside as well as out and all the frames inside. It's upvc with a polycarbonate roof and all the roof panels inside as well as the beams and window frames were very grubby with mould and mildew. Would really appreciate some advice on how to go about cleaning this and how hard it is as it looked a bit of a nightmare. To be honest id rather leave it but really need the work. Thanks everyone.