He did let go, and throughout his fall, Alex kept wondering when the safety line would catch.

He says it never did and that he hit the porch before bouncing off onto the pavement.

Investigators have said that the equipment did eventually help break his fall, ensuring that he only sustained minor injuries.

Alex is keen to get back to his job at Bob Smith Window Cleaning, where he has been employed for four months, but says he doesn't plan on working high buildings again for some time.