Lovell takes up his new role next week succeeding Glyn Barker who steps down after leading the company since March 2016.
Lovell’s construction career includes previous stints at Costain, Jarvis and Carillion.
His other current roles include chairman of Safestyle UK and the Senior Independent Director of SIG plc.
Interserve chief executive officer Debbie White said: “On behalf of the Board I would like to thank Glyn for his service as Chairman of Interserve.
“His leadership of the board and valuable counsel has been vital during a period of significant challenge and change for the Group.”
“We are delighted to welcome Alan to Interserve. He brings a wealth of experience and has a strong track record of business improvement and transformation.”
Interserve was forced into a pre-pack administration earlier this year by mounting debts.
Lovell said: “I am pleased to be joining Interserve at this exciting time.
“I look forward to working with the board, and with Debbie White and her executive team, to continue delivering Interserve’s transformation and to capitalise on the significant opportunities ahead for the group as a best-in-class partner to the public and private sector.”