About Us

County Prestress, LLC is a full service prestressed concrete services provider, offering a full range of structural and architectural prestressed and precast concrete products for large-scale commercial construction applications in the Midwest. We specialize in parking structure decks, elevators and stair towers, Insulated Sandwich Walls (ISWs) for big box and mixed use structures, hollowcore plank, and bridge girders and beams. As demand for infrastructure and commercial construction projects continues to increase, our four Midwest production facilities ensure we are positioned to support this region’s growth.

In August 2020, County Prestress, LLC, an affiliate of County Materials Corporation, acquired substantially all of the assets of the Illinois-based company Illini Precast. This acquisition included manufacturing assets and real estate for Illini Precast’s facilities in Illinois, Indiana and Wisconsin. County Prestress, LLC is headquartered in Westmont, IL.

Commercial and industrial construction professionals rely on County Prestress, LLC’s responsive project management team to support them through every phase of prestressed and precast construction. This includes ongoing collaboration with our customers before, during, and after each project. County Prestress will work with you to plan, design and implement intelligent solutions for all your prestressed and precast concrete needs so you can avoid costly pitfalls. Rely on us to help you make difficult projects simple.