Welder power socket

[brainbug007]

I just got my welder and didn't realize that it isn't meant to be used with the standard 13 amp sockets and recommends a 15 amp plug / socket. Has anyone tried running them off the 13 amp sockets with any success or did everyone put a 15 amp socket / plug into their garages? If so does anyone know what it costs roughly to have an electrician install one? I don't really know anything about electrics and wouldn't want to attempt it myself :S