Tarmac has secured a framework contract worth £10m a year for resurfacing works across 275 miles of motorway and arterial link roads around London.
The pavement resurfacing agreement with M25 operator and maintenance company Connect Plus will run for up to twelve years.
Tarmac said it will also be working closely with Connect Plus and other M25 community members to own and embed a whole-life approach, "establishing, promoting and maintaining an innovative culture through all stages of the asset management process".
Paul Fleetham, managing director of Tarmac Contracting, said, "This major award reflects our strong working relationship with Connect Plus and our proven track record of close collaboration with network operators to improve network capacity, minimise disruption and prioritise the safety of road users.
"As well as providing skilled delivery and technical expertise, we will draw on our extensive asphalt plant network in the South East to provide on-demand access to high-quality materials."
Tarmac said its commitment to working in partnership with Connect Plus and other M25 community members to drive efficiencies and develop new industry-leading innovative methods of working were key factors in securing the deal. The award builds on its previous five-year contract with Connect Plus.
The contract scope includes resurfacing, fine milling and joint sealing across the M25 to reduce whole-life costs and minimise maintenance demands on the network.
Chris Richardson, Connect Plus commercial director, said, "We are excited to be working with a group of highly motivated and skilled suppliers to take the 30 year DBFO [design, build, finance and operate] concession successfully through the next ten years and beyond, which we are confident will be achieved through closer integration and a relentless focus on innovation and efficiency."