Can you recommend a specialist?

Hi!
Please someone help me, I need to have my room divided, do you know anyone in London area doing this kind of thing, and that it would not cost me an arm and a leg?
Thank you

Try google.co.uk , I am sure you’ll find some, or try http://www.londonbest.co.uk , they are not too expensive and work fast. They did extension to my house couple of months ago.

nail up a dust sheet?