The FTSE 350 Construction and Materials index was up 0.9 per cent this morning at 3,674 points while the FTSE 350 Support Services index remained steady at 2,848 points.
Ennstone continued its strong recovery run since the start of the year, gaining 133 per cent to 3.5 pence a share.
The house builders all enjoyed a good morning, led by Taylor Wimpey which gained 23.5 per cent.
Building materials firm Travis Perkins gained 6.2 per cent while Jarvis was up 8.5 per cent.
The FTSE 100 fell 0.6 per cent this morning to 4,423 points.