Grading (sloping the dirt away from the house) is a great first step, but it only solves surface water issues. It does nothing to stop groundwater that moves horizontally through the soil under the surface. In the clay-heavy soils of Lynnwood and Everett, water “perches” in the ground and moves toward your foundation regardless of the surface slope. At Basement Expert, we combine proper grading with active sub-surface drainage to provide a complete 360-degree solution for your home.