White sill brush gets in all the nooks and cranies
http://www.gardinerpolesystems.co.uk/acatalog/the-super-lite-xtreme-standard.html
- even had to get the ladders out to pull them off.
It's not a Gardiner's brush but the fittings are all compatible even the taper screw socket and you even get a telescopic pole with it - for less than a fiver from Home Bargains and it's great for that "awkward" bit of fascia behind the gutter and the back of the gutter where a normal brush can't get in.You will have to drill to get the pole hose in but hey - it works!!!!!!