Aggregates

At Northern Welsh Quarries ltd, we proudly produce and supply all sizes of premium Welsh slate aggregates—including 10mm, 20mm, 40mm, Oversize, 6F5, Sub Bases, and 16-Dust—available in convenient 850kg bulk bags or bulk lorry loads delivered across the UK. Crafted from nature’s finest slate, our aggregates combine timeless elegance with versatile functionality to meet every project need enthusiastically and reliably.