I returned to a job that’s had building work going on for around a year I just said to her again and prior to the work starting I won’t be scratching any windows that are covered in cement or concrete,worse thing you can do is turn up and let the builders see you before they’ve finished the job it gives them the green light to make as much mess as they like.
It’s happened again to me recently the guy had made an awful mess on the lower windows laying a new patio,I asked him to come over and I just told him I won’t be getting any of your mess off m8 I’ve told them to text me when you’ve removed all you’re mess builders these days on the whole are dreadful.