Morgan Sindall has said it is on track to deliver record results in 2008, thanks to its work in the public sector.
In a trading update, the group said its construction division was performing in line with expectations, owing to the fact that 50% came from the education sector and 20% from other public areas.
It added that its infrastructure services arm was also benefiting from buoyancy in the market and that it hoped to win work on the £16bn Crossrail project in London.
However, the company warned that the fit-out market would deteriorate in 2009, despite a strong performance in the past six months.
The consensus forecast is for pre-tax profit of £69m on turnover of £2.4bn.