Washing windows

Out to swim, back through the New Town to find a window washer at work. We are gong to need something similar to this; the grey van in front of the red door at bottom left has a water tank and a pump, and the person on the pavement is operating a very long handled brush with a water supply to the head of the brush. There's another person cleaning the third window from the centre, sitting on the window sill .. 

Listed building description. 

A great sunny day, 5C and cold in the wind.