Retaining Walls

Professional retaining wall installation in Seattle solves slope problems while creating beautiful terraced garden spaces. Our retaining wall construction process addresses King County's specific challenges: we work with natural stone, and timber materials that handle Seattle's wet climate and provide design flexibility to match your property's aesthetic. The installation follows critical structural steps: excavating to stable soil below the frost line, creating a compacted gravel base that provides drainage and prevents settling, installing the first course perfectly level since everything builds from there, backfilling with gravel rather than clay soil so water drains away from the wall instead of building pressure, installing drainage pipe behind the wall that channels water to safe exit points, and stepping back or battering walls taller than three feet so they lean into the hillside for stability.

The benefit of professional retaining wall installation is that we design for Seattle's clay soil conditions that hold water and create massive pressure against walls, we build proper drainage systems that prevent the hydrostatic pressure that causes wall failure, and we understand local building codes that dictate when engineered walls and permits are required for your safety. Well-designed retaining walls transform your landscape by converting steep unusable slopes into multiple planting terraces where you can grow perennials and shrubs at eye level, creating level lawn areas or patio spaces on properties where everything currently drains downhill, defining garden rooms through elevation changes that add visual interest, providing opportunities for cascading plantings that flow down wall faces, and solving erosion problems on slopes where Seattle's rainfall constantly washes soil away.

Professional retaining wall construction increases your property's usable square footage through functional terraced spaces, prevents costly erosion and drainage problems, adds significant value through permanent structural improvements, and creates the multi-level garden opportunities that make Pacific Northwest landscapes so distinctive—because retaining wall installation Seattle homeowners rely on means structures engineered for our specific soil and climate conditions rather than walls that lean, crack, or collapse when the winter rains arrive.