fitting of washing machine and removal of old one

I know that some suppliers will fit and remove old appliances but when this is not the case who do I contact and what is the ball park figure for such a service.

I am after a 9kg Sharp front loader, or any imox/grey make  and my old one is a bit over 2 year old Hoover Otsein 8kg+ dynamic.in white.

Forgive me if I have put this question under the wrong categorie

Tina x