1965: Could you work at 400ft up?
"Their job is one of the most dangerous in the world. You fall off a stack like this only once."
As industrial chimney stacks grow taller, the number of steeplejacks willing to build and maintain them is in sharp decline.
And so, Tonight's Cathal O'Shannon reports that the world's largest steeplejack firm has set up a 'steeplejack school' in an attempt to encourage a new generation of steeplejacks to the profession.
Originally broadcast .