Do many trad cleaners use vision then?
You could put horse muck in the bucket and do a better job than these urchins.
The thing is they get away with it, one of the biggest employers in my area employs about 20 or more, he doesn't pay well
so has a fair turnover in employees, you can guess what the quality is like.
He not cheap either, but it almost impossible to take a customer from him, he gets the odd one pinched here and there but
year after year his round gets bigger.
This is one strange game to be involved in.