Winstone Aggregates is a leader in aggregate products and services in New Zealand, operating 11 extractive quarries, 2 Joint Venture quarries with our partners, 4 clean fills, 6 Labs and a fleet of 80 bulk trucks. We are the trusted aggregates solution partner for the concrete, roading, rail, and other infrastructure industries.

Our activities transform a natural resource in the safest and most sustainable way for our customers to enable their building of high-quality structures where people live, work and play, improving the quality of life for all New Zealanders. We care about everyone going home safe everyday, being sustainable in all we do, our customers enjoying a premium experience with our customer leading culture, setting ourselves up for another 150+ years.