Yes, by closing, assuming that the necessary forms etc are sent to the relevant agencies at that stage.
I just thought it was a bit presumptious, and because we've had some differences I thought he might be making a point by insisting on payment up-front; what difference will a few hours or days make to him at the end of the day, and why is charging for conveyancing so different than other type of cases?
I guess I'll pay him when he wants for a quiet life, I just want all this bit to be over now, and get on with enjoying the new house.
Thanks for all your answers everyone.