Low Pressure. Long Roof Life.
Safe roof cleaning using soft wash, brushing methods, and moss treatment.Our roof cleaning process combines low-pressure soft washing, manual brushing with soft brushes, and moss treatment to safely remove moss, mold, and organic buildup.
This gentle approach cleans effectively while protecting roofing materials and helping prevent future regrowth.
WHY IT MATTERS
Why Roof Cleaning Matters in Washington
Moss is not just cosmetic. It holds moisture against roofing materials and can lift edges over time. That can lead to faster wear, water intrusion, and repairs that cost far more than routine maintenance.
In Seattle, a full roof replacement commonly falls in the $8,045–$17,399 range for many homeowners (project-dependent). Even “smaller” roof repairs can run hundreds to $1,500+ depending on the issue and materials. On new roof projects, labor can be a major component (often around ~60% of total cost).- Moisture retention and faster material breakdown
- Blocked roof drainage and overflow issues
- Higher chance of leaks around valleys and edges
- Premature repair or early replacement scenarios
WHAT MAKES US DIFFERENT
Why Our Roof Cleaning Is Safer Than Typical “Power Washing”
Many companies rely on high pressure. We use a gentle approach designed to protect roofing systems.
- Soft wash + brushing methods (gentle but effective)
- Moss treatment to help reduce regrowth
- Careful work around landscaping and roof details
- Optional documentation via drone photos/video
METHODS
- Soft wash with biodegradable solutions
- Gentle brushing for heavy moss buildup
- Moss treatment powder to inhibit regrowth
- Safe for asphalt shingles and similar roofs
MULTI-SERVICE
While servicing your roof, we can also inspect and clean gutters, provide window cleaning, pressure washing, drone inspection with before/after documentation, or discuss permanent lighting installation.
How pricing works
In the Pacific Northwest, roof buildup is usually moss, algae, and organic debris. Pricing depends on:
Because every roof is different, we provide a clear price range first, then confirm the exact quote after photos or a quick visual check.
Typical project range
Most roof cleaning projects in the Seattle area fall roughly in the $450–$1,200 range. Steeper roofs, multi-story access, and heavier moss typically land on the higher end.
Our cleaning approach
Depending on the roof type and buildup, we may use a combination of:
- Gentle brushing where needed for heavier moss
- Soft washing (low pressure) with appropriate solutions
- Moss treatment / prevention options to help slow regrowth
(We choose the safest method based on your roof’s conditions.)
Optional add-ons (quoted separately)
- Gutter cleaning after roof service (recommended if debris is present)
- Roof maintenance plan / periodic touch-ups (if requested)
Get a fast estimatesend:
- Professional hand wash and squeegee finish
- Detail work on edges for a clean, sharp look
- Careful work around frames and surrounding surfaces
We’ll reply with a range, then confirm the exact quote based on pitch, access, and buildup.
