Paint maker DuluxGroup's half year profit has grown by 88 per cent on improved sales and the benefits of its takeover of building products company Alesco.

The company made a net profit of $60 million in the six months to March 31, up from from $32 million in the same period a year earlier. The result included several one-off items, and when excluded, the company’s profit was $56 million, up 34 per cent from $42 million…