we live in a little 2up2down house, the window cleaner comes once a fortnight and will only do the front but only charges us £2 for the last 7 years maybe because we OAPs, the rest I have to do. I bought that Swiss window cleaning stuff [£12] about 2 years ago out of the Sunday paper it boast you only have to clean every six months which works on all the windows except the upstairs one that my dogs look out from that needs doing ever other day. Another bonus is the window cleaner does this part time as he works for the council parks dept but if you want a tradesman to do anything i.e.plumbing,decorating etc he knows one and will send them round !