andrew, can you say if i'm asking a silly question........please
Working off a ladder and still learning how to approach cleaning windows, schools seem a little daunting to me. And difficult to price up without being too cheap or way over.
Do you have a quiet word with the caretaker, openly ask someone else or can you find out on the school or local council webpage?
I've turned down a a couple of commercials saying i haven't got the time during the winter months. Because there are other factors involved than just turning up and cleaning what's in front of you.
But i would certainly be more interested if i could find out how much a job was worth and then decide whether i could do it for that price.
sigh.... if only i had more experience.
Until that happens, can you share the benefit of yours please.