It was able to secure $1.4 billion worth of new contracts during the half across its engineering construction, maintenance and industrial services, and infrastructure units.

Its engineering construction arm hit sales revenue of $480.1 million, a 3% increase on the corresponding period on the back of ongoing contracts with Woodside for construction services at the Pluto LNG project, BHP Billiton and Newcrest Mining.

It also managed to bag its first marine construction contract during the half, securing a contract worth $330 million in joint venture with Muhibbah Construction for the Wiggins Island coal terminal in Queensland.

Meanwhile, it managed to secure new contracts with Woodside for mechanical commissioning support at Pluto and a general services contract with Bechtel at the Chevron-led Wheatstone LNG project.

Its maintenance arm recorded sales revenue of $311.3 million, up 65% on the previous period and its infrastructure arm delivered revenue of $96.3 million, a 33.8% uplift.

Subsequent to the end of the reporting period, Monadelphous was able to secure a $350 million offshore hook-up and commissioning contract at the Wheatstone project.

It said the outlook was rosy, with existing work to take it through to the end of the 2013 financial year and a pipeline of major infrastructure projects across Australia to keep its bidding team busy.

Monadelphous said it expected its second half profit to be broadly in line with the first half result, but flagged a shortage of skilled labour as an issue which had the capability to hurt the bottom line.

It finished the half-year with net cash of $139 million.