A worker has been here for several weeks doing repairs and redoing the basement room for my husband's study. The job expanded more than we realized because there was extensive termite damage, so paneling had to be removed, new studs put up, new paneling, the ceiling replaced, the indoor outdoor carpeting scraped up, painting, new windows put in, and he also picked up and brought over all supplies and materials. So I know the bill is going to be major. I offered to pay him in partial payments, because I didn't like that he had to cover the cost of materials, but he wanted to wait until the job was done and then get the whole amount. I feel I should give him more than he asks for, right? Can you give me an idea about how much?