The house adjoining ours (semi-detached) has recently sold. The new owner is a builder and is renovating it himself at weekends and in the evenings. Unfortunately these are the only times we are at home and they are starting with drilling/hammering the party walls next to our bedrooms as early as 7.45 on Saturday and Sunday mornings. Would it be reasonable to ask if they could start at, say, 9am at weekends?