Basic
$0.29 – $0.97 per sq ft
Loose moss brushed off, moss and algae treatment applied, low-pressure rinse
How Much Does Clean Moss From Exterior Surfaces Cost in Seattle, Washington?
Removing moss and algae from exterior surfaces (roof, walkways, patios, walls) with treatment and low-pressure wash, priced per square foot.
Clean Moss From Exterior Surfaces in Seattle, Washington typically costs $0.34 to $1.15 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Clean Moss From Exterior Surfaces in Seattle, Washington
$0.34 – $1.15
per sq ftPrices in Seattle are 19.0% higher than the national average for clean moss from exterior surfaces.
National average: $0.30 – $1 per sq ft
What you get at each price level
Standard
$0.34 – $1.15 per sq ft
Moss scraped and brushed, treatment applied with dwell time, low-pressure rinse, nearby plants wetted and rinsed
Premium
$0.43 – $1.43 per sq ft
Moss hand-scraped from joints and edges, two-step treatment and rinse, preventive treatment to slow regrowth, plants covered
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.15 – $0.47 | sq ft |
| Labor | labor | $0.13 – $0.47 | sq ft |
| Supplies & Other | supplies | $0.04 – $0.12 | sq ft |
| Equipment & Disposal | equipment | $0.02 – $0.08 | sq ft |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($0.14-$0.45 per square foot)
- Labor ($0.10-$0.35 per square foot)
- Supplies & Other ($0.04-$0.12 per square foot)
- Equipment & Disposal ($0.02-$0.08 per square foot)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
References
- The Roofing Brief: Roof moss removal cost 2026, theroofingbrief.com, retrieved Nov 2026
- This Old House: Metal vs asphalt roof (moss removal), This Old House, retrieved Nov 2026
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
Connect with local clean moss from exterior surfaces contractors in Seattle for personalized quotes based on your specific project.