Sir Robert McAlpine margin falls below 1%

Sir Robert McAlpine continues to battle to restore margins to industry averages after a year of supply chain, labour availability and inflationary pressures eroded profitability.
The firm revealed that longer term projects due to finish this year had seen costs jump by £33m more than expected.
In latest published results for 2022, the group delivered a 0.9% operating margin down on the prior recovery year at 1%.
While revenue edged up 16% to £1.09bn, operating profit remained st