I got mine from http://www.scaffold-towers.co.uk/index2.html their
cheapest - working height 18ft. Wobbly at full height - needs
out-riggers or better still bolting to wall which is a good idea
anyway i.e. eye bolts and string ties. Very cheap, quality OK.

cheers

Jacob

I'm thinking of buying one, approx 4-5m high - does anyone have any
recommendations for a good outlet? What can I expect to pay? As a
starting point, the ones on Screwfix seem to be around a grand which is a
bit mind-boggling; is that about par for the course?

That's at the low end of the range for that sort of height. Unless you
intend to make considerably more use of a tower than most DIYers, you are
much better off to hire.

Colin Bignell