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Ross Trethewey is an American mechanical engineer and television personality known for This Old House and Ask This Old House. The son of longtime plumbing and heating expert Richard Trethewey and grandson of original series plumber Ron Trethewey, he represents the third generation of his family to appear on the program. Ross joined the team in 2011 and became a regular cast member in 2016 after co-creating the āFuture Houseā segment. He holds bachelorās and masterās degrees iā¦
