You are now saying it took the two professional cleaners 6 hours with their equipment to clean the rooms to your standards,
So in theory you expected this decorator on his own (without professional cleaning equiptment) to spend more than 12 hours cleaning the rooms,
Sounds like you did not give the job much thought before you suggested the woodwork should have been power sanded.
And I bet there is still a film of dust in the rooms despite the professional cleaners work, Once dust has been disturbed it takes weeks to settle.
So in theory you expected this decorator on his own (without professional cleaning equiptment) to spend more than 12 hours cleaning the rooms,
Sounds like you did not give the job much thought before you suggested the woodwork should have been power sanded.
And I bet there is still a film of dust in the rooms despite the professional cleaners work, Once dust has been disturbed it takes weeks to settle.