Hello Chaps, I've decided to start using a 1,2,3 system for quoting. basically if they are utterly filthy, I mean green frames and cills, yellow sticky spider webs in the corners haven't been done in a couple of years ect, I call it a 3, that is £3 a window. If they are quite dirty like 4 months worth, then 2=£2 and if they have been done recently and just need a maintenance clean then a 1=£1 but never going below £10 for a one off clean no matter how many windows. Of course that system only incorporates the dirtiness of the windows and not things like access or hazards, for which you would have to adjust accordingly, but using this as a basis down here in the SW I think is quite accurate. What do ya thinks guys?