Bouygues UK building safety liabilities have driven the contractor to a pre-tax loss of £76.1m for the year to 31 December 2025, more than doubling the prior year’s loss of £32.3m and marking a fourth consecutive annual deficit.
In the directors’ report accompanying the latest accounts, chief financial officer Julien Calais attributed the deterioration to ‘costs related to subcontractor performance, labour availability and the continuing impact of post-completion liabilities relating to building safety’. Calais added that a ‘small number of failures of subcontractors’ compounded matters, with ‘actions implemented to ensure that works were able to continue with cost forecasts being revised accordingly’.
Turnover grew from £375.6m to £394.8m, a rise the firm attributed to increased activity linked to the phasing of live projects. But the widening loss produced a negative pre-tax margin of 19.3 per cent, compared with a negative margin of 8.6 per cent the previous year: a steep deterioration that makes the revenue growth largely immaterial to the bottom line.
Building safety provisions dominate the balance sheet
The scale of the building-safety liability exposure is visible across Bouygues UK’s provisions, which hit £270.9m in total. Current provisions reached £68.8m, up from £44.2m, with the largest element being a £59.6m customer warranty provision for building-safety obligations. A further £8.7m covered remediation costs from past contractual commitments, though the firm acknowledged these were ‘subject to uncertainty in both timing and amount’. A £548,000 contract-loss provision was also tabled for expected losses to completion on construction contracts in progress.
Long-term provisions of £202.1m were recorded, entirely related to customer warranty provisions within the building-safety warranty period. The contractor said it expected to settle those provisions within the next 12 years. Alongside those liabilities, Bouygues UK said it expected to recover £69.8m from its insurer, with those reimbursements ‘considered to be virtually certain’.
These figures reflect a liability landscape that extends well beyond any single contractor. As of March 2025, the Ministry of Housing, Communities and Local Government (MHCLG) estimated that remediating residential buildings of 11 metres and above with unsafe cladding in England would cost between £11.8bn and £22.7bn, according to GOV.UK’s building safety remediation data. That estimate frames the systemic pressure that contractors carrying post-completion warranty obligations are navigating across their portfolios.
Enforcement action is also intensifying. The First-tier Tribunal has ordered Hollybrook (UK) Limited to pay £3.68m to the government to cover the cost of fixing fire safety defects at Hallings Wharf Studios, according to Penningtons Law. Cases of this kind signal that regulators are prepared to pursue cost recovery from developers and contractors rather than allow remediation liabilities to drift indefinitely through warranty mechanisms.
Bouygues UK building safety strategy under revision
Chief executive and chair Philippe Bernard described the year as ‘challenging’ but said the firm had ‘taken a rigorous approach to reassessing our business strategy’. Calais said pressures on financial performance would ‘remain during 2026’, while the revised strategy should ‘provide the foundations for improved results in future years’.
New work secured during the period included the £119m development of two college campuses in South Welsh and the £51m redevelopment of a west London college. Calais said the firm had ‘continued to be selective in its bidding approach’, consistent with a deliberate reduction in risk appetite following the losses of recent years.
The broader regulatory environment for contractors is tightening further. From 1 October 2026, the Building Safety Levy will impose a direct cost on most new residential developments in England, contributing to the estimated £16bn cost of remediating unsafe buildings nationally, as set out by Anderson Wilde & Harris. For contractors already carrying substantial warranty provisions, the levy adds another layer of cost pressure to factor into bid pricing and project viability assessments. Calais’s stated commitment to selective bidding suggests Bouygues UK is acutely aware of that calculus.
Calais said the firm expected financial pressures to persist through 2026 while the strategy review beds in, with the £69.8m anticipated insurance recovery providing some balance-sheet relief as the long-term provisions are settled over the coming decade.
