I probably going to get slagged here, but my average is about £7. Now I have some £50 accounts, some shops I do in and out in the range of £30 but average out around £7. I do allot of small flats, but still there are plenty in my area that would work for less.
I went out to 3 quotes today,
First one: I quoted, £16, "there is a guy that does them for £12"

Second: I quoted £11, "My last window cleaner was £6", going to ask the hubby first.

Third: I quoted "£9", and got the job.
These where all in different streets by the way, not next door and used the same pricing structure on all. Now I would say I do pretty well. I recently bought myself a new van; logo’ed uniforms etc, and earn a decent wage that I am happy with.
Now If I had 6000 custies, and a team of employees, I would say I am doing pretty well. You can’t afford to pay employees if you are making peanuts, between holidays, nat contributions etc.
My point is, they might not be all three bed semi's. I might be blocks of apartments, which I have seen myself knock off 6 per hour, at £6/£7 each. I wouldn't call that peanuts.