A business unit of St. Lawrence Cement, Dufferin Aggregates is a major supplier of construction aggregates. We operate five quarries, six sand and gravel pits, and three distribution yards within the Greater Toronto area and adjacent municipalities.Dufferin Aggregates produces over 12 million tonnes per year of crushed stone, gravel and sand for the commercial, industrial, and residential sectors, as well as for civil engineering work. We also supply aggregates to sister companies, Dufferin Concrete, Dufferin Concrete/Boehmers, and Dufferin Construction.
The stone processed into a granular material is sold to construction companies and building contractors as essential elements forming the bases of highways, roads and sidewalks. They are also used in sewer and water main construction, or for building footings and foundations, as well as in the manufacturing of concrete, and concrete and asphalt products.
Dufferin Aggregates supplied high quality aggregates for many major construction projects, including the construction of Highway 407 and the recent upgrades to the Pearson International Airport in Toronto.
The Milton quarry, which employs 100 people, is the largest quarry in Canada in terms of tonnes produced. As a responsible corporate citizen, Dufferin Aggregates has implemented a leading rehabilitation program to transform the extracted areas of the quarry into a biologically diverse naturalized landscape of wetlands, lake bodies, and forested slopes.
Additional information on our products and services is available by contacting:
Technical Services
Dufferin Aggregates
2300 Steeles Avenue West
4th Floor
Concord, Ontario L4K 5X6
A business unit of St. Lawrence Cement, Dufferin Aggregates is a major supplier of construction aggregates. We operate five quarries, six sand and gravel pits, and three distribution yards within the Greater Toronto area and adjacent municipalities.
