About us

C3S Inc. Consulting Engineers is a civil/materials & structural consulting and testing company specializing in comprehensive evaluation of concrete and its related ingredients. The company also provides structural design for new and existing concrete, steel, wood, and masonry structures including foundations. C3S has been providing services to clients in the U.S. and overseas since 1991. At C3S, you will find an expert team of highly experienced and skilled engineers, inspectors and technicians who can help with all your concrete structure related needs and problems. C3S Inc. Consulting Engineers can provide concrete testing services in each of the three phases of the project. Concrete testing services in the Project Planning Phase can verify that planned and sourced construction materials will meet requirements. Concrete testing services in the construction phase can quickly identify non-conformances and minimize cost and delay. Concrete testing services in the maintenance/forensic phase are the traditional applications that identify the source of problems so that they can be corrected cost effectively.