You can also try FHMReader on Burnerworld he runs a powdercoating company and his work is flawless as well. Not too pricey either. He's based in Darlington.
There's also Buttsbikeshop, he's also on Burnerworld and he comes highly recomended from everyone that's used him. He does chroming, zinc work as well. Almsot a one stop shop.
SBD is also very good, he's done a few of my frames with no problems at all.