Stairwell Cleaning

What This Service Involves

Exterior stairwells in parking structures, apartments, and commercial buildings collect spilled drinks, tracked-in dirt, and a slick film of algae that thrives in their shaded, damp corners. In the Northwest, those enclosed stairs rarely dry out, so organic growth builds into a genuine slip hazard on every tread. Washington Pressure Washing scrubs and washes the steps, landings, and handrails, then treats the concrete to slow regrowth. Clean, dry, slip-resistant stairs protect tenants and visitors and reduce the liability that comes with a neglected stairwell.

Benefits

Removes slick algae and grime from shaded treads; Reduces slip-and-fall liability on high-traffic stairs; Cleans handrails and landings tenants touch daily; Treats concrete to slow organic regrowth; Freshens enclosed stairwells that rarely dry on their own

Our Process

1) Close the stairwell and post wet-surface signage; 2) Pre-treat treads and landings with an algae-killing solution; 3) Wash steps, landings, and handrails top to bottom; 4) Rinse, squeegee, and confirm dry, slip-free access

What Affects the Cost

Number of flights and total step count; Degree of algae and grime buildup; Enclosed versus open stairwell drainage; Handrail and landing detail work; Access timing to limit tenant disruption

Best Time of Year

Stairwells benefit from cleaning two to three times a year, with priority through the wet fall and winter when algae peaks.