Ian Pattison takes over from Howard Bales, who retires at the end of June after 14 years with the company.
Mr Pattison joins from support services business Restore Plc, where he was finance and commercial director and has previously worked for Cape, Boeing Australia and Asda.
He is a fellow of the Association of Chartered Certified Accountants but also has a degree in quantity surveying.
Clugston chief executive Stephen Martin said: “I am extremely pleased to welcome Ian to the company. I am sure his experience will be invaluable to us as we continue to grow the business. I am looking forward to working with him and wish him every success in his new role.
“I would like to take the opportunity to thank Howard for his long service and loyalty to the company, as well as his outstanding support in providing financial expertise and guidance to the group.”