I said that to a customer you’ll have to get them to come back and they did,the worst thing you can do is let a plasterer or builder see you pull up so they know the house has a window cleaner when they are doing work before you say I’ll come back after you’ve finished.
A plasterer at a house I do made an absolute right mess I refused to clean,like I say she got him back and he made an effort to clean them up a bit.