the poles from unger are fine, we do a lot of these, split ur ladders and use one applicator and pole the other use a waterfed pole ie: Ionics residentail wfp, was only £99 +vat. rinse all the gutering out and clean. wash and rinse the roof, clean and wash down and the whole frame and clean windows. just clean everything and start from £50 per conservatory, not just the roof beacuse you will end up cleaning the frames for free when the dirt runs down from the roof.