We did a house a month ago, first time and it was raining - they said not to bother, we explained that the rain doesnt affect the overall outcome of the windows and they said just do the front. we did this and they paid for the front and told us to come back next time (today) if it's dry. and when we turned up today they seemed very surprised that we came back. and when talking to the guy who lived there he said "we've had a few window cleaners, they just seem to not come back after a while" i thought 'i wonder why, we have to work in the rain...' but said nothing as i dont want to upset customers so soon after setting up. need more not less.