A Design-Build and General Contracting firm serving the State of Missouri. Our clients are; commercial, industrial, ecclesiastical, and multifamily. We have been in business for over 60 years. We have been the builder on large commercial developments working for Developers. Our cretive and cost effective approaches save first costs and life cycle costs thru Green design and construction methods. Prost has done a number of significant multi-million dollar historic renovation and restoration projects.