The firm revealed that contract losses distilled after it exited social housing development and remediation of a one-off legacy contract have cost the firm £5.4m in the year to September 2015.
This was on top of a one-off exceptional cost of £4.1m connected with the firm’s Stock Exchange float in March.
Despite this, Lakehouse delivered pre-tax profits of £3.2m (£100,000k: 2014) from revenue up 11% to £337m.
Underlying profit before tax significantly increased to £21.6m, after allowing for a mixed bag of one-off and exceptional costs.
Stuart Black, executive chairman said: “Lakehouse is delighted to report its maiden full year results as a listed company.
“During the year we have delivered on our stated strategy of achieving organic growth, supplemented by value-enhancing acquisitions which provide complementary services and new geographies.
“The board remains confident of its expectations for the current year and the future.”
The Romford-based firm set up in 1988 now employs 2,400 staff across four divisions: Construction; Regeneration, Energy Services and Compliance.