Grafton Group expects EBITDA for the year ended 31 Dec to be slightly ahead of consensus forecasts.
It said group revenue increased by 8.8% to £2.7bn.
It said growth in constant currency was 6.8% and average daily like-for-like revenue increased by 5.7%.
The group said it delivered an improvement in profitability across all its geographies.
At 9:35am: (LON:GFTU) Grafton Group PLC share price was +28.5p at 788.5p