Icon Walls is a leading supplier of high quality concrete sleepers used for landscaping, gardening and structural engineering. We have been designing, building and installing eye-catching, durable retaining walls for over 30 years. We believe that concrete retaining walls provide a host of advantages for constructions. They are durable and impervious to termites and water damage. Our walls are perfect for enhancing the style and atmosphere of your outdoor space or landscape paving.