I have just done these. My question to you all is how long do you think it would take to remove masonry paint scats and drips/runs from the glass and frames (9 windows,upvc 2 glass panels and one patio door on each) on these four properties. They are all new build and in a row. And how much would you charge? I will tell you how long it took me and what I charged after I have seen your responses.