DO NOT USE Coloutech.
I had a frame reside there for around 5 months, which was only persuaded out of them by constant calls from Brian at Chas Roberts. A friend (and forum member) has been waiting a year for the return of his frame, despite constant contact with them.
In addition, some of the paint on my frame is very delicate, not what is required on Roberts mountain bike.
Tel, try Argos in Bristol.