Been looking at them for a while now, The best price I could fine was 350. It does seem a bit pricey for ladders, I can never get 100% of the dirt of the conservatory roof. not the roof it self. Its that fancey looking part at the top. Ive tried virosol different brushes. You can only push so hard on them before the break. I seem to spend more time on that, than the roof its self most times. The compensate for the cost I could add a bit extra on conservatory cleans?