The bullish predictions came as the company posted record results for the financial year ending 31 October 2013.
During the year turnover was up 15% from £126m to £145m while operating profit remained stable at £2.6m.
Keltbray Group now employs around 800 people and invested £9m in new kit last year.
Chief Executive Officer, Brendan Kerr, said: “We expect to continue to stay ahead of the construction market recovery by growing the business in excess of 20% in 2014 based on our good pipeline of work.
“Our challenge for 2014 and 2015 will be to meet the widely reported skills shortages in our industry by widening the talent pool and continuing to build on our track record of attracting young people to Keltbray by offering good prospects, job security and a range of training and development opportunities.”