Really depends where you take it, main dealer, backstreet etc. For example, i work at a main dealer so labour rate is quite high at 80 ish quid / hour. It would take only a few mins to do that but youd probably be charged half hour labour... Best phone round your local garages and see who will do it the cheapest, aslong as theyve got a press and dont use hammers to change bearings lol.