Where can I have paintwork damage repaired cheaply in London?

A vandal has put a long deep fine scratch along the bonnet of my E-Class Mercedes. Are these mobile car chip and scratch repairers any good? I live in central London.

Asked on 16 March 2013 by JS, London W2

Answered by Honest John
There are limitations to what they can do, but some of them enable you to send a digital photo of the damage so they can assess it without coming to see the car. www.honestjohn.co.uk/faq/damage/
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