Well I've had a phone quote of �40 for each door, which is more than I paid for the doors!! Maybe the professionals don't want to bother with that sort of job so they price it out of range.
I do all the decorating myself actually, perhaps I just wanted a quote so that Mr Puzz would realise how valuable I am! There's quite a lot of doors, I just thought it would be nice to get them all done at once, if I do them it'll take a while, that's all.
As a professional decorator, with my own business, I would be charging around �15-�20 per side, depending on flush/panels. This would be for knotting/priming/undercoating & gloss. Make sure you get what you pay for though... make them sand between coats!