As new chief executive officer, Murphy is now based at Hewden’s Manchester Head Office with immediate effect.
He was previously at Speedy Services for 10 months after joining last April and before that had senior roles at Chubb and Hilti.
Murphy said: “I am delighted to be joining Hewden whose brand and tradition is so well recognised across the Industry.
“I look forward to meeting and working with my new team to further develop the business”.
He replaces Kevin Parkes, a former director at Finning (UK), who took over at Hewden in 2009, leading the business after the sale to private equity company Sun European Partners.