In its latest trading update the company said: "We continue to operate in market sectors where there is a commitment to expenditure.

"In a period of economic uncertainty, the group continues to focus on major blue chip customers who are expected to implement their long-term investment programmes." 

"The group's order book is in good shape and, with robust finances underpinned by a strong cash position and an ongoing rigorous focus on cost management, Costain is well positioned to deliver further progress."

Civil Engineering operations, which represent over 85% of the group's order book, are performing very well with a number of significant new orders secured since the start of the year, Costain said.