Do you charge more for the 1st Clean?
Just wondering, I personally do not, I charge per window and compare the final quote to how long it would take me, no matter how dirty they are. and that price will stay the same no matter what. I actually really like doing dirty windows, peoples eyes fall out of their head sometimes when they see the difference, like today, the lady didn't stop smiley and thanking me and offering me coffee

New house today took me 1:25, and I quoted £30, can only get better, but price will stay the same. Guess I'm dead on with the quotes there. Was a dirty house and even had to do a lot of pole work