is that just a bit of a consistence: -
reflectionswindowcleaners.co.uk/default.aspx
reflectionwindowcleaning.co.uk/default.aspx RWC (jaykie)'s site
uhmmm
Just kidding I am sure it is, what I actually wanted to ask you is how do you get on with the trailer system you've got. I have concidered it, but was wondering how you manage with parking, see most of my customers is in a town center so I think I might have a problem with it, but can you take it off and just leave it in the street when you dont need it, and if so can they be secured, stop anyone taking it.
gerard 
Jakie and I have teamed up, were taking over the world of window cleaners Lol, I know my company with the name Reflections has been going for over 35 years, just a mear 11 years with me at the helm.
I handed the window cleaning side over to my daughter after her training but when I was using the trailer I had no problems to worry about.
You do need a little experience to reverse a trailer and unless the parking space is big enough for your car and trailer to just drive into you may have problems.
There is no problem with un-hitching it and leaving it there, I left mine in a pub car park once with a hitch lock fitted, wheel clamp on and the alarm set, take no chances or it will vanish on you, get your self a wheel chair battery and fit a car alarm, someone tried to nick mine from out side the house but the alarm saved it and it had a hitch lock on as well.
Make sure it has a lockable lid.
Handy thing about the trailer is you can unhitch & wind the Jockey wheel down when your tanks getting low.
I still have my trailer but use it to carry my guttering and conservatory cleaning gear in now.