Sidewalk Pressure Washing

What This Service Involves

Public-facing sidewalks across western Washington collect a slippery film of algae and moss that thrives in our damp, shaded climate. Our surface-cleaner attachment delivers even pressure so you avoid the zebra-striping that wand washing leaves behind. We flush the trapped organic growth from expansion joints where Pacific Northwest moisture lets it root. The result is a uniform, slip-resistant walkway that holds up through the next rainy stretch.

Benefits

Eliminates the slick algae film that causes winter slips; Restores an even tone across the whole slab; Clears moss from joints and control lines; Improves curb appeal for visitors and passersby

Our Process

1) Blow off leaves and fir needles and pre-treat the surface with a moss-and-algae solution; 2) Dwell the treatment so it kills growth at the root; 3) Pass a rotary surface cleaner for streak-free, uniform results; 4) Rinse joints and edges and apply a final flush to carry residue away

What Affects the Cost

Total square footage of the walkway; Depth of embedded moss and algae staining; Number of expansion joints needing detail work; Accessibility and water source proximity; Whether a post-clean sealant is added

Best Time of Year

Late spring through early fall is ideal, once the heaviest rains ease and the concrete can dry between passes.