Ronez, a member of the SigmaRoc Group, has been serving the Channel Islands since 1869. With operations in St John’s Quarry in Jersey and Les Vardes Quarry and Vale Castle in Guernsey, Ronez is a leading supplier of construction materials, offering a comprehensive range of high-quality products and services. The company provides aggregates, ready-mixed concrete, asphalt, precast concrete products, and cementitious products, meeting the diverse needs of the construction industry.

The crushed rock aggregates produced at Ronez's quarries are essential for various construction applications, while the ready-mixed concrete and asphalt plants supply a wide range of products. Ronez also offers precast concrete products, including blocks, kerbs, edgings, and paving products. Moreover, as the principal importer of cementitious products into the Channel Islands, Ronez ensures a steady supply using its MV Ronez tanker and silo terminals.

Backed by the SigmaRoc brand, Ronez is committed to delivering top-notch construction solutions to its customers