Profile: Duininck Bros, Inc. is engaged in aggregate production, grading, asphalt surfacing, underground pipe construction and bridge construction. Our road construction division is involved in bituminous surfacing of highways, streets and roads. We specialize in the mining and processing of aggregate products. Our utility construction division installs water, sanitary, storm sewer, lift stations and treatment ponds. We also focus on the construction of interstate bridges involving new construction as well as raising & rehabilitating older bridges.