Gramm Barrier Systems Ltd. are the UK’s leading, Link-Up Railway & Highways Agency Sector Scheme Approved, specialist contractors in the supply & erection of all types of Barriers including Noise, Wind, Flood & Vehicular Safety Barriers, & include Bridge Parapets, Pedestrian Guardrail, Security Fencing, incl. Steel palisade, Weldmesh, Chainlink fencing, General Fencing and Gates.