The Barnsley-based company said pre-tax profits rose 115 per cent to £1.7m in the six months to June 30, ahead of market expectations.
Billington said market conditions continue to improve and it saw an encouraging performance across all divisions.
The group said it has a strong order book moving forward and a robust cash position, which leaves it well placed for future growth.
Billington’s CEO Mark Smith said the group is now well placed to deliver strong full year results.
“We are experiencing growing demand in the sector and Billington remains well placed to capitalise on these increased opportunities,” he said.