Hi Guys
The company i mentioned earlier is A1 Anodising and is on (01293) 539555.
They will anodise anything, i have just booked in a couple of bikes, a set of cranks and two sets of forks so you will be fine with a frame. They are brilliant and will entertain anything. They will do car parts too and they have been around for at least 20 years. I cant mention them highly enough.
If you are unsure about anything phone them first, but i think you will be suprised and dont worry about price, they are much cheaper than you would think!!!