Concrete contractor in Shoreline, WA

Shoreline's heavy tree canopy keeps many residential driveways and walkways shaded for most of the year, which means the surface stays damp long after rain stops. That persistent moisture is what allows moss and mildew to take hold on aging concrete. A new slab with a proper drainage slope and a broom finish that provides texture without holding water will reduce moss growth compared to a smooth, flat surface.

Concrete from the 1960s in Shoreline is typically at or past the end of its service life. If the slab has shifted sections, wide cracks, or areas that have sunk near the garage apron, the base has already moved and patching the surface will not stop further movement. Replacement with a properly prepared base is usually the better investment at that age and condition.

Yes. The sloped lots in the Richmond Beach area often need retaining walls to hold grade and prevent soil from eroding toward driveways, patios, and foundations. The wall height, footing depth, and drainage behind the wall all depend on the specific slope and soil conditions on the property.

Stamped concrete can be used on shaded patios, but the drainage slope and surface sealer matter more in a shaded location. A flat stamped surface that holds water will deteriorate faster and become slippery. We design the drainage slope into the pour and can recommend a sealer that reduces moisture absorption without making the surface dangerously slick.