Pressure & Soft Washing, San Juan Island

Pressure where pressure belongs, soft washing everywhere else. The difference matters.

  • Licensed & bonded
  • WA L&I #SANJUJI741OT
  • Insured
  • Locally owned in Friday Harbor

Everything out here grows a green film. Walkways get genuinely slick by February, and north-facing siding goes from cream to gray-green over a couple of seasons.

Two different jobs, and the difference matters. Hard surfaces — concrete, pavers, stone — take actual pressure. Siding, painted surfaces, and roofs need soft washing: low pressure and a cleaning solution that does the work. Pressure washing siding drives water behind it and strips paint, and I won’t do it.

Close view of weathered cedar shingle siding showing green algae in the shadow lines

What’s included

  • Deck and patio washing
  • Walkway, driveway, and stair washing (slip hazard removal)
  • Soft washing for siding and painted surfaces
  • Roof soft washing and moss treatment
  • Fence cleaning
  • Outdoor furniture

What it costs

Quoted as a flat project rather than hourly — it depends on square footage and how long it’s been since the last wash. Small jobs can run on the standard minimum. Most whole-house exterior washes are a half-day. Rates and minimums here.

Full rate card

Common questions

Best time of year?

April through September. You want it dry enough to actually dry afterward.

Will it damage my siding?

Not if it’s soft washed, which is what siding gets. Anyone bringing a pressure wand to painted cedar is going to cost you a paint job.

Photo slot — not yet shot

Photo: Mid-wash shot with the clean line visible — half the walkway or deck done, half not. Horizontal, natural light.

Shot list item 8: any repair with a visible improvement. A wash line is the clearest version of it.

Want this off your list?

Call (360) 317-0203 or send the details and I’ll tell you what it takes.