Home DIY

hafele
http://www.hafele.co.uk/hafele35a1/templates/hafele/intro.asp

they will only sell to trade account people but you can order through somewhere like strada http://www.strada.uk.com/ - just down the road from you or sds http://www.sdslondon.co.uk/ on northcote road in Battersea.
I hate both of these shops by the way, strada are plymouth brethren weirdos sds are rude and they're both over-priced.

ftfy.

Was shocked too at the price of shower doors/enclosures when I was looking. Even bathroom cupboards at places like Homebase/B&Q seem exhorbitant.