Hi this is only my 4th customer so very green. Quoted for and got the job but one element was cleaning this sky light and windows above a first floor extension. Seemed fairly straight forward to ladder up onto roof and simply get them cleaned. Agreed it all with the lady of the house so happy days. Turned up to do the job and the husband says no as worried I'm going through the roof. Looking at the construction I'm sure it would be fine (I'm only 11 stone) and how else would they have installed the skylight if you can't stand on the roof? Anyway if I can't convince him how would you tackle it and the windows the photos are taken through? I see posts about using a Harris pole but the thought of using it for the first time through a window in a downward angle doesn't scream quality outcome to me. Is there an easier way that I'm just not seeing?