My conservatory is covered in grime and is just generally dirty and a company nearby offers to clean them. They have a fab website showing them doing it and I do not want to get a powerwasher and do it myself as I would no doubt soak my neighbours garden in the process, fall off the ladder and break a leg.
They also offer an inside clean. My conservatory is victorian in shape and between the angled panes where they have used sealant I have black mould spots
Are they ever going to be able to deal with them? Has anyone had this done?