The broadcaster was best known for fronting the BBC garden makeover show from 1997 to 2005.
Walsh’s agent, Debbie Schiesser, told the Press Association: “Tommy died peacefully after a long illness surrounded by his family. As this has only just happened, we would ask everyone to please respect the family’s privacy.”
Walsh, from Hackney, London, presented Ground Force alongside Alan Titchmarsh and Charlie Dimmock.
At its peak, the series attracted 12 million viewers.
Walsh, a builder by trade, later appeared on other home improvement shows including Homes Under The Hammer and Clean It, Fix It.
He was also a contestant on weight loss show Celebrity Fit Club, and appeared on Lily Savage’s Blankety Blank and quiz show Pointless.
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