Or from Yellow Pages and the Fed Ad.
I've just quoted £20 +vat for five ordinary sash & case windows in and out in a small office - 15 minutes maximum, and a few doors up from another couple of office we already do. I didn't ask if they got others to quote, so don't know if I was the best price, or if they just went on personality and get-on-ability :
They seemed delighted by the first clean though. Just have to wait and see if they're good payers!
When I first started on these boards, I was astounded by what some folk were charging and I thought "If you can't beat 'em, join 'em!" Thanks guys!