What insurance do you need as a Window Cleaner and Why

Being a window cleaner is a dangerous occupation, accidents can happen however experienced you are and there are always freak occurrences. Window cleaning though is not only dangerous to yourself but also dangerous to the public, if you drop a bucket of water from a few floors up it could easily cause serious injury or even death: you could be sued which may well simply mean bankruptcy unless you have some means to compensate. Public liability insurance will pay out for this though.