Northstone Materials
Coleraine , Antrim · Northern Ireland
At a glance
- Type
- Quarry / Supplier
- Location
- Coleraine, Antrim, Northern Ireland
- Service area
- Ireland & UK
Northern Ireland's largest quarry operator with 60+ years in business and seven basalt and gritstone sites. Supplies aggregates, limestone, asphalt, ready-mix concrete and blocks across Northern Ireland.
About Northstone Materials
Northstone Materials, a subsidiary of CRH plc, is Northern Ireland's largest extractor of quarry products, with over 60 years in business and more than 30 locations across the province. The company operates seven strategically placed basalt and gritstone quarries, with divisional offices in Dunmurry (Belfast) and Macosquin (Coleraine). Product categories include aggregates (building, high PSV, decorative, and export grades), asphalt, ready-mix and specialist concretes, floor screeds, limestone (agricultural, building/construction, and white aggregate for decorative concrete), sand, concrete blocks, and roof tiles. Northstone also offers specialised services including anti-skid surfacing, coloured and decorative surfacing, airfield works, and public realm installations. The company directly employs approximately 1,200 people and serves major infrastructure, commercial, residential, and self-build projects across Northern Ireland.
Specialties
- Quarry / Supplier
- Building & Structural
- Patios & Paving
Stones Stocked
Sandstone
Warm, workable, and versatile — the classic paving and walling stone of Ireland and the UK
Blue Limestone
The sophisticated choice for contemporary Irish projects — deep blue-grey limestone with exceptional density
Irish Limestone
The bedrock of Irish architecture — warm grey limestone quarried across the island for over a thousand years
Irish Basalt
Volcanic stone forged beneath ancient Ireland — dense, dark, and built for the hardest-wearing applications
Service Area
Serves nationwide across Ireland and the UK.
Frequently asked
- Where is Northstone Materials based?
- Northstone Materials is based in Coleraine, Antrim, Northern Ireland.
- What stone types does Northstone Materials work with?
- Northstone Materials works with Basalt, Gritstone, Limestone.
- What services does Northstone Materials offer?
- Northstone Materials offers Quarry / Supplier, Building & Structural, Patios & Paving.
- What area does Northstone Materials serve?
- Northstone Materials serves nationwide across Ireland and the UK.