Richard Unwin of main contractor Overbury has won this year's H&V News Building Services Graduate of the Year award sponsored by Denco.
Formerly an apprentice fitter/welder, Richard secured a first class honours degree in building services engineering from London South Bank University.
He will now travel to New York to represent the UK industry at the ASHRAE Winter Meeting in January.
He plans to set up a website that will communicate what he learns at the conference and help to spread the word about the importance of sustainable design.
The two runners up were Andrew Bickerdyke of the University of Durham and Daragh O'Connor from Dublin Institute of Technology. They both received a £500 bursary from the Rumford Club.
Five finalists gave presentations on sustainable building services to an invited audience and a judging panel, which included ASHRAE President Kent Peterson and his CIBSE counterpart John Armstrong, at the Institution of Mechanical Engineers in Westminster.
'We were delighted by the high standard this year,' said CIBSE/ASHRAE Group chairman Tim Dwyer, who chaired the judging panel.
'It was actually a tough job even coming up with the shortlist of five because we had such a good response to our call for entries in the summer.
'The amount of talent on show at the final bodes very well for the future of the industry.'
Following the graduate presentations, Mr Peterson delivered the annual ASHRAE Lecture in which he stressed the importance of engineers on both sides of the Atlantic collaborating to tackle climate change.