Dont EVER feel you may be over charging!
I waited in all afternoon for a guy to come and repair my washing machine today. After 15 minutes he tells me, "sorry mate you got error E20" nothing I can do about that." he has to go back to the shop to find out what part and how much. He then hands me a bill for 45 quid!!!
We window cleaners are worth so much more coz at least we bloody DO SOMETHING!
Rant over.
