Brock Aggregates owns and operates 5 Aggregate Production Facilities in Southern Ontario.

East: Whitby
Producing Sand Fill and Cable Sand.

North-East: Sunderland
Producing concrete sand, stone, A Gravel, B Gravel, HL6, Concrete Stone, ¼ Chip, Sandfill, Winter Sand and Cable Sand. Innovative Under Water and Surface Extraction facility in place.

North: Tottenham
Producing Sandfill and Cable Sand.

North/West: Priceville & Maxwell
Producing River Stone.