you still need ladders to get on flat roofs and to get over locked garden gates
If they are locked then I just clean what I can reach from the front, I always ring the night before to let them know I need access to the back and that all windows are shut.
I still get the odd custy that forgets to unlock the side gate, when they get home and see only the fronts have been done and that I have only charged them half the price, they soon get the message to leave the side gate unlocked. I even had one customer demand that I go back and finish the back of the house. I told him I rang the night before to let him know and he just said he forgot, I told him that I can't just drop everything to go round to his house. I even stated that I only charged him for the fronts.
as you might guess, I dropped him 2 cleans later.
Matt