Further to the thread I started
here, I thought one in this section might be helpful to people searching.
I can thoroughly recommend Dave Wheal from Dent Devils. He is based in Crawley, but travels about, so might be able to cover a reasonable amount of the SES patch.
If he can't he will happily recommend a reliable person in your area, if he knows one of course, as PDR can expose you to cowboys!
His main details are easily found with a Google search. In addition, his mobile number is 07740561402, which I don't think is on the main page.
Feel free to mention me. He knows my forum name thanks to my Forester sticker on the car!
Hope it helps someone out!