I've never had anything powder coated or painted in anyway in fact.
So asked around. LSN was an obvious choice up here as others had used them, but they couldn't do what I wanted.
Anyway I asked another company a member on here mentioned. http://www.yorvik-es.co.uk/powder.html
So I emailed them, their repkt=y should answer your questions.
Me..Hi, I have two bike frames I'll need powder coating (and paint remove first)
First is a thin Alu frame, second is a thin steel frame.
I'm looking for the colours you can do and the finish and also if you can do an abrupt colour change over
YorvikNot a problem. To chemically strip/glass bead blast/prep/mask/powdercoat/powdercoat lacquer a frame/fork set in a stocked colour would be £66 inclusive (metallics + £10)
It is possible to do abrupt colour changes and for masking and additional work like this the labour rate is £35 per hour, so cost for additional "custom" work varies depending on the compexity of what you had in mind.
I guess prices, quality and what they can/cannot do varies from place to place.