Quinn London has maintained its margin as it boosted turnover in its latest financial year.
The Mill Hill-headquartered contractor’s revenue rose to £109m in the year to 31 May 2025, from £100m in the prior 12 months, newly released accounts show.
Its pre-tax profit rose to £4.1m in the period, from £3.6m in 2024.
The results mean its pre-tax margin stood at 3.8 per cent, up slightly from 3.6 per cent.
Chairman Seamus Quinn said in the accounts that results were in line with expectations given trading conditions in the sector.
“Despite persistent inflationary pressures, rising material costs, and ongoing supply chain volatility, the company maintained robust revenue growth, protected margins, and delivered solid profitability,” he said.
He added that the business had performed “very well” since he introduced joint managing directors to provide “robust and controlled assistance”.
Pat McGrath and Gerry O’Connor were promoted to the roles in March 2024.
The profit increase reflected improved efficiency and selective bidding practices, the chairman added.
Founded in 2000, the firm works in sectors including health, education, heritage and residential.
It employed a monthly average of 176 people in its latest accounts.
The firm’s cash reserves improved from £6.5m to £7.2m, and it paid out £2.1m in dividends compared with nothing the year before.
Quinn held no external bank loans or overdrafts.
During the period covered by the accounts, it began working on an energy centre for the British Museum and secured a £12.7m refurbishment job at the GradeII-listed Thomas’s London Day School in Richmond.
In October, the firm was named as one of 25 contractors on a £300m building remediation framework for the Guinness Partnership.
