I've been asked to quote for a place by the river near where I live, the whole rear of the property is made of glass! There are hard to reach windows that are really dirty. My trolley system is good and the pole I use is enough at 24ft. 2nd storey doors have safety type balcony bars on them but can be cleaned from the inside. I think it will take me about 3 hours and she wants it done 8 weekly. So what I am asking is how much do you think I should quote and do you have customer that agree to high priced domestic work. Thanks.