Protect your Puget Sound Home from water damage by contracting drainage professionals and geotechnical engineers at Seattle Rockeries. We in layout drafting, excavation, and installation of outdoor drainage pipes of all sizes and material. When used with proper grading, drainage pipes eliminate standing water and flooding during Seattle's stormy weather. Drainage pipes ensure runoff is collected and diverted before it saturates soil around foundations and hardscapes. Drainage pipes lead to catch basins, drain boxes, and stormwater systems.