The foundation is the most essential part of any building or structure; the foundation is the base structure that transmits loads from a building to the ground. Suffice to say the foundation is the most important part of a building's structure, particularly in seismic-active California. RWR specializes and is an expert in the construction of concrete building foundations. In particular, RWR has developed a unique capability for hillside construction of concrete foundations. RWR’s expertise includes foundation repair, new foundations and underpinning of existing foundations, along with upgrading existing foundations.