Road Surfacing & Civil Engineering
Northstone Materials Division is one of the leading asphalt* producers and civil engineering contractors in Northern Ireland. Our asphalt is both manufactured and installed in accordance with the requirements of the international quality management standard, ISO 9001, and National Highways Sector Schemes 14 (manufacture) and 16 (installation). Our compliance with the standard and NHSS is independently assessed by the British Standards Institute (BSI).
*In the European sense of the term, covering all bituminous bound materials.