Ah, PM window cleaning; I've seen them around here though they don't do a lot. Little cars, signwritten, dodgy ladders - crumpled aluminium where the rubber feet ought to be. Lads who sometimes don't wear belt kit; just up a ladder with a scrim over their shoulder with a mop 'n' squeegy in one hand.
They're not paid a lot and I've not heard good things about their boss either.
I think they are South Wales's biggest window cleaning company though, but I'm not sure; we probably live on the fringes of the area they cover so I don't see them too often.