He replaces Mark Goldsworthy with effect from April.
Restall also brings considerable expertise from the contracting sector, having trained at Taylor Woodrow Construction where he rose to group finance director over nearly nine years.
More recently he was also UK Chief Financial Officer at SPIE Matthew Hall.
Paul Gandy, managing director of Interserve Construction, said: “George’s experience in the UK construction sector will be invaluable in delivering Interserve Construction’s long-term strategy for sustainable growth which targets the core areas where we have a market-leading customer proposition for key public and private clients including education and healthcare.”
“I would like to thank Mark Goldsworthy for his exceptional support to the construction division over the past few years and wish him well in his future career.”