Decorative concrete; artistic ; and colored, stamped, brushed, exposed aggregate, acid washed, sand blasted Architectural Concrete Retaining Walls, Planters Benches, stairs, Courtyards, Patios, Walkways, Driveways, Floors project landscape, Seattle center, hardscape, architect, international fountain, Seattle center. We specialize in the design and construction of decorative concrete projects. For homeowners, contractors, builders, architects, landscapers and property managers.