£250 for a days work is very getable.
I think you will only get it by wfp.I was trad for many years and that figure was only getable when someone worked with me for a fullday.
Some see the green eyed monster when you post what you earn and think your bragging, so I will not post what I earn. A freind of mine did earn over £500 in a day on domestic work once, but he was totally drained and it was only done once to see what he could earn, But he normally earns around 240,he only works part time and earns 400 to 500 a week.
If you can earn £40 an hour and do 10 hours a day you will get £400 for a days work. If you only get £10 an hour you would get £100.
But if you only get £100 for a 10 hour day how do you feel about the chap who gets £400.
You have to remmber this job is very hard to do a 40 hour week in winter.So you might think £40 an hours is high, but this is only your gross earnings at best,Take for example where I live we have had rain every day for the last 3 weeks. 3 days this week it rained solid.
Good money is possible at w/cleaning, I am living proof and most of my freinds earn a good whack at it,they justwork less hours then me. So how much do I earn a week?
Mind your own BLOODY BUSINESS

Neil