He left Kaitaia, after 22 years as manager, when Firth bought the plant, taking up a position at Waipapa until it too was sold, to United, followed by several years at Pukepoto Ready Mixed, until it achieved Special Grade certification.
From there it was to the Urlich plant at Tokerau Beach, until it too was sold to United, then Mangonui Haulage, which was keen to build a ready mixed plant at its depot. The company duly built what Mr Hall described as a very good small plant, which achieved Special Grade certification within six months, his role including providing all the mix designs and advising on testing equipment and methods.
The operation had proved successful, he said, and apart from the recession that had affected the industry as a whole, had done very well, thanks to local support.
"In all I have been associated with concrete production (including four years as chairman of the Northland branch of the NZRMCA) for 50 years," he added.
"I've met some great people, and I don't regret a moment of it."