Thanks for all the replies,Yes wally I am doing the insides.Wizard thanks for that top tip,I will get some meths.
Actualcleaning, I had no intention of doing any commercial,or doing insides,This job came to me, I nearly turned it down,But thought sod it,I will bite the bullet and give it a go.Like i say i was just in B&Q and was asked by another customer in there. Picked up a conny roof from one of the bank staff the other day too, having "window cleaner please ask for a quote" has picked me up quite a few jobs since January,the hairdressers alone is £520 a years worth, £60 conny roof,plus a few others,All from a £20 hoody!!! Also the people who own the hairdressers own half a dozen (at least) other businesses there so could be getting a lot more from it!