Tarmac–Kier JV delivers major safety and maintenance boost across TfL road network

The joint venture between Tarmac and Kier repaired more than six thousand safety defects and cleaned around sixteen hundred gullies across London between October and December 2025.

The companies have published an infographic summarising the work done for Transport for London in the last quarter of last year, which also included inspecting 90 structures including bridges, retaining walls, subways and gantries, and completing 33 design and/or build projects.

They say they attended 99% of highway emergencies on time, and 98% of emergencies in tunnels.

Under the terms of the TfL Strategic Highways Maintenance Contract, the Tarmac–Kier JV is responsible for maintaining key routes across London’s road network, including safety inspections, emergency response, gully cleaning, and structural inspections. The contract also includes design and construction projects, with a focus on improving road safety, resilience, and accessibility.

They also point out they generated more than £9.8 million in social value and volunteered more than 300 hours to communities.