Bath re-enamelling

[viknjem]

What is the best way of resurfacing an old bath surface that has lost it's shine and is a bit grubby? I've read about a company who provide a full revamp service for between �200 and �300, who seem good on paper. I have also heard about the Jaeger Professional Bath Resurfacing Kit for �75, which seems good, but I don't know how fiddly it will be to apply. Please help - we're trying to sell our house and are doing all sorts of DIY bits to make it more saleable. Thanks. P.S. We're based in the London area.