Recently moved and got three quotes, ranging from £20-£35. It's a three-story house and MUCH higher than average. Georgian, on a hill, front door 5 feet off the ground. One window-cleaner refuses to do the third floor - fair enough, you wouldn't catch me climbing a ladder to the 2nd, never mind the third!
I'm seriously considering buying equipment to do this myself, maybe one of those brushes on an extension pole that connects to the garden hose - high enough to do the first two floors at least. Anyone here do the same? Where did you buy the equipment and are you happy with it? Is it worth the hassle do you think?