
UK Construction Outlook 2026: What Main Contractors and Site-Service Buyers Need to Know
UK construction in 2026 is a sector easing off a downturn, not recovering from one. Output fell 1.8% year-on-year in May and the Construction Products Association expects the full year to close down 3.3% before a modest 1.2% rise in 2027, driven almost entirely by a 10% collapse in private housing starts. Infrastructure is the one segment growing through the downturn (up 3.2% in both 2026 and 2027), while material and labour cost inflation are accelerating even as demand stays weak. For main contractors and buyers of site services, the next 12 months call for tighter cost-escalation clauses, closer subcontractor due diligence, and realistic allowances for gateway and planning timelines rather than pre-2022 assumptions.


