Home DIY

I'm thinking about installing an electric towel rail/radiator in my bathroom. I'm happy that it falls outside any of the controlled zones and my plan is to fit the element, mount it on the wall, fill it and route the cable through the door frame to a socket located just outside on the landing. I'll then get an electrician to fit a fused spur unit, wire it in and do the necessary notification that it complies with building regs.

Has anyone done a similar job? Any pitfalls to avoid? Any recommendations for fused spur units with a timer preferably in stainless (I've heard stories about their poor reliability). How much should I expect an electrician to charge for the above? Can anyone recommend one who'll do this in South London for a reasonable price?

Some light reading here