Monday 21 March 2016 10.44pm
I can recommend 'Create-a-Blind' at 624w, The Tower Bridge Business Complex, London SE16 4DG. 0207 231 5331. They not only make and fit blinds but they were the only company that I could find which also replace the mechanism on existing blinds bought elsewhere. http://www.create-a-blind.co.uk/shop/about-us.html
That phone #, 020 7231 5331, is the same # as the firm that we used to have blinds, (not blackout), supplied and fitted in our house.
I know them as Gemini Blinds.
They are in an arch in the Tower Bridge Business Complex.
If you enter from Clements Road, swing to the right, and they are up on the right about 200 metres.
They did an excellent job, at a very good price.