Contracting and services provider Macmahon Holdings Ltd has reported a record first-half after-tax profit of $25.8 million, up 120 per cent on the previous year, due largely to the sale of its Allplant hire business.

Contracting and services provider Macmahon Holdings Ltd has reported a record first-half after-tax profit of $25.8 million, up 120 per cent on the previous year, due largely to the sale of its Allplant hire business.