You can contact John:

by phone... +44 7543 821 939

by email... thedoctor@guitarhospital.co.uk

by post...

P.O Box 296
Whitstable
Kent
CT5 9AR

in person...

London Workshop:

Guitar Hospital Ltd
The Arc
35 Armoury Way
Wandsworth
London
SW18 1BF

Whitstable Workshop:

above Valentines Vintage
21 Oxford St
Whitstable
Kent CT5 1DB.