The buoyant London fit-out market helped the firm to lift operating margin to 2.8% generating a £5m pre-tax profit, up from £4m in 2017.

Finance director Andrew Bradley said turnover had also increased to a record £181m last year.

“BW is well placed to continue to trade well and capitalise on a strong market and like last year we entered our new financial year for 2019 with our strongest order book, and are well placed to exceed 2018’s turnover and profit.”

Over the year staff headcount rose by almost a quarter to around 200.

The fit-out group continued to maintain a strong balance sheet for investment in the future development and growth plans of the business with net assets up from £14m to £20m.

It ended the year with £21m cash.