So I got a call today from a lady who has just started a new business at the back of this garden centre, its like a really large octagonal wooden shed really, with tons of glass, selling jewellery and stuff, also a big row behind it of smaller units, none of them have a window cleaner so will be approaching them on Friday when I clean hers. But on the way in I noticed the front of the garden centre itself is filthy, the front is almost completely glass and maybe 20 foot high at a guess maybe more, the outsides a no brainer, but inside there is no way of placing a ladder anywhere as it is all glass and massive pains and they are filthy so I know if I get the job they will want the insides doing as well, it has all those thick metal poles criss crossing the roof with webs everywhere, and would you go about this? My guess is trad off a pole, don't have one at the moment for trad what do people suggest? something cheap ideally as it will only be used on this job. Or is there an alternative to doing it trad off a pole?