It comes after chairman of two years Tony Emms decided to relinquish his role in favour of a fresh pair of hands.
Mr Bonehill, who has previously worked for CU, CGU, Aviva and Chubb, joined Ecclesiastical in 2006.
Speaking about his new position, he said: "The role of board chairman is central to driving forward the work of the claims faculty. It provides members with a wide range of tailored, market-relevant information and services designed to support personal career development needs."
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