"Grand Designs" wanted to film the building of this project, so I was told by the owner today. They have built this one and are in the process of building a second one next to it, that is even bigger! The people wanted a quote for 8 weekly inside and out. It has a lawn on the roof and there will be 450 square metres of glass to clean if in and out are done. There are some very tricky windows to reach as can be seen in the pics below. Pole tradding the inside is a bit of a no no as dirty water could run down the paint work. Also the high internal windows are set back at the base of the glass by about 12", so a pole would not get to it. There is a glass balustrade on some parts of the house which need cleaning both sides, slight problem as the inside of them is 20' from a courtyard. How would you tackle this one then?