The news was contained in a positive trading statement which revealed the firm is trading in line with expectations for the six months to June 30.

But Morgan Sindall said “operating margins are lower as a result of the competitive environment” at the construction and infrastructure division.

The firm added: “Overall we have had a positive first half of 2011 and, with our track record in growth sectors, broad sector spread and depth of capabilities, we remain well positioned to face the challenges ahead and to benefit from opportunities as they arise.”

Morgan Sindall also confirmed it has won a place on the £1.2bn framework to upgrade Gatwick Airport.

Morgan Sindall will compete with nine other contractors for the individual schemes during the four-year framework.

The programme includes a broad range of major projects including upgraded terminal facilities, new aircraft piers and modernised baggage systems as well as new retail, security and immigration areas.

The firm is currently on-site delivering the £50m Gatwick North Terminal extension.

Chief executive Paul Smith said: “We are delighted to extend our relationship with Gatwick and secure a position on its latest framework.

“Having highlighted the airport sector as one which offers growth potential for our Group, it is pleasing to capitalise on opportunities such as this which help develop our position in the sector.”