Made from natural aggregates from our quarry sites all over the country, we have a huge range of products proudly manufactured in New Zealand. For one hundred and fifty years Winstone’s high quality products have helped to construct New Zealand’s buildings, roads, bridges and structures. Whether it’s aggregates for concrete, roading, pavement, drainage, building or that special custom job, Winstone Aggregates have the experience and expertise to provide you with exactly what you need for all of your projects big and small.