Laura Robson at Harris and Ross in Handforth did a great job of helping me repair a torn lat last year.
I got their recommendation from someone on here, can't remember who though.
I also believe they also helped out a certain top UK female boulderer with something last year, but they may have ended up referred her on to a hand specialist if I remember rightly.
They get my vote anyway -
http://www.harrisandross.co.uk/