Home/Cleaning services/Roof moss removal
Updated October 2026 · Seattle areaBest Roof Cleaning & Moss Removal in Seattle
Moss removal, roof cleaning and moss treatment for Seattle-area roofs, one of the most common home maintenance jobs in the Northwest.
- 15 local companies
- Checked on their own websites
- Free, no-obligation quotes
Roof moss removal companies serving the Seattle area
15 companies that list roof moss removal on their own websites. Filter by your city to see who serves you.
Seattle Moss Removal
- Roof cleaning
- Moss removal and treatment
- Algae and lichen removal
- Gutter cleaning
Fully licensed & insured. Eco-friendly moss prevention formula (no license # shown).
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Kenmore and 25 more
A Plus Roof Cleaning & Pressure Washing
- Roof cleaning
- Roof moss and debris removal
- Gutter cleaning
- Pressure washing
Serving since 2006. Licensed, bonded & insured.
Serves: Seattle, Bellevue, Kirkland, Bothell, Shoreline, Sammamish and 7 more
Johnny Tsunami
- Moss removal
- Eco-friendly moss treatment
- Roof cleaning
- Soft washing
- Gutter cleaning
Licensed, bonded & fully insured. Eco-friendly moss treatment.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Renton and 4 more
Rojo Moss Removal and Power Washing
- Roof moss removal (hand-brush)
- Moss prevention (zinc-based treatment)
- Roof cleaning / demossing
- Soft washing (cedar, tile)
- Gutter cleaning
Eco-friendly zinc-based / metal-free moss treatments.
Serves: Seattle, Bellevue, Auburn, Edmonds, Mill Creek
GotMoss (Darryl Moss Roof Care)
- SoftWash roof cleaning
- Moss removal
- Moss treatments
- Gutter & downspout cleaning
Over 20 years experience. Licensed roofing contractor.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 11 more
Homefront Power Wash
- Soft wash roof cleaning
- Moss, algae & lichen treatment
- Gutter cleaning
- House washing
Licensed & insured.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 11 more
Hydra Clean
- Roof cleaning
- Moss removal
- RoofRX moss treatment
- HomeShield membership plans
- Gutter cleaning
Since 2008. Licensed, bonded & fully insured ($1M liability). RoofRX described as plant-derived, biodegradable, no bleach/zinc/copper.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 11 more
NW Moss Removal
- Moss removal (brushing + zinc sulfate treatment)
- Roof cleaning
- Minor roof and gutter repair
- Service plans
- Gutter cleaning
Serves: Seattle, Bellevue, Redmond, Kirkland, Sammamish, Issaquah and 10 more
Grace Roof & Gutter Cleaning
- Roof cleaning
- Moss removal
- Anti-moss treatment
- Roof maintenance
- Gutter cleaning
Licensed general contractor. Eco-friendly, organic roof cleaning methods.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 9 more
Precision Pro Wash
- Soft wash roof cleaning
- Moss removal
- 2-year moss guarantee
- Gutter cleaning
Licensed & insured ($2M insurance). Plant protection guarantee.
Serves: Seattle, Bellevue, Issaquah, Mercer Island, Newcastle, Renton and 9 more
Clean425
- Roof moss removal
- Roof cleaning
- Post-removal moss treatment
- Soft washing
- Gutter cleaning
Operating since 2016.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Woodinville and 8 more
Husser Window and Gutter Cleaning
- Manual roof moss removal
- Moss treatment (sodium percarbonate)
- Roof debris removal
- Annual roof & gutter maintenance plans
- Soft washing (metal/concrete roofs)
Published price: Moss removal from $500 (1-story) / $600 (2-story) / $700 (3-story); moss treatment from $100 / $125 / $150 ($200 minimum); annual maintenance plan from $550/yr (excl. tax) (source)
Since 2007. Bonded (Western Surety). Eco-friendly moss treatment.
Serves: Seattle, Bellevue, Redmond, Kirkland, Bothell, Shoreline and 5 more
Chinook Services
- Soft wash roof cleaning
- Moss removal
- Soft wash moss treatment
- Skylight cleaning
- Gutter cleaning
Since 2001. Licensed, bonded & insured (lic. CHINOS906R9). Eco-friendly solutions.
Serves: Seattle, Bellevue, Redmond, Kenmore, Shoreline, Sammamish and 4 more
Pro Care, Inc.
- Roof cleaning
- Moss removal and treatment
- Soft washing
- Gutter cleaning
In business since 2002. Licensed (incl. pressure washing contractor license). Fully insured.
Serves: Seattle, Bellevue, Redmond, Kirkland, Sammamish, Issaquah and 2 more
Goodbye Moss PNW
- Soft wash roof cleaning
- Moss control treatment
- Annual roof maintenance plan
- Gutter cleaning
Licensed, bonded & insured general contractor.
Serves: Seattle, Bellevue, Kirkland, Issaquah, Everett, Tacoma
Order: companies based in Seattle first, then by how many cities they serve. No company paid for its position on this page.
What roof moss removal includes
Moss holds water against shingles, lifts their edges and shortens roof life. It thrives in Seattle's shade and rain. Roof cleaners remove moss by hand brushing or soft washing, then apply a treatment that keeps new growth from taking hold.
Moss removal
Moss brushed or scraped off by hand, without damaging shingles.
Soft washing
Low-pressure cleaning for algae and stains where appropriate.
Moss treatment
Treatment applied to prevent regrowth.
Gutter cleanup
Moss and debris cleared from gutters after the roof work.
Inspection
Damaged shingles or flashing noted.
Roof moss removal checklist
Before
- Ask about roof type
- Move items away from the house
- Note skylights
During
- Remove moss
- Clean gutters
- Apply treatment
After
- Haul debris
- Photos
- Plan yearly treatment
Roof moss removal prices in Seattle
Roof moss removal is priced by roof size, pitch and number of stories. Published prices from the listed companies:
| Company | Published price |
|---|---|
| Husser Window and Gutter Cleaning | Moss removal from $500 (1-story) / $600 (2-story) / $700 (3-story); moss treatment from $100 / $125 / $150 ($200 minimum); annual maintenance plan from $550/yr (excl. tax) (source) |
Before you compare prices
Treatment-only visits cost much less than full moss removal.
How to choose a roof moss removal company
No high pressure
High-pressure washing can damage shingles and void warranties. Ask about their method.
Treatment product
Ask what treatment they use and how long it lasts.
Insurance
Roof work carries risk. Confirm insurance.
Bundles
Ask about roof plus gutter packages.
Why Seattle roofs grow moss
Shade from evergreens, mild winters and months of rain make the Puget Sound region ideal for moss. North-facing roof slopes usually grow the most.
Get free quotes from local companies
Tell us what you need once. We pass your request to up to 3 listed companies that serve your area, and they contact you directly.
Frequently asked questions
How much does roof moss removal cost in Seattle?
One listed company publishes moss removal from $500 for a one-story home and moss treatment from $100.
How often should I treat my roof for moss?
Many homeowners treat yearly and remove moss every few years.
When is the best time?
Late summer through fall, so treatments work before the wettest months.
Is pressure washing a roof safe?
High pressure can damage asphalt shingles. Most experts use hand removal or soft washing.
Related cleaning services
Listings are compiled from each company’s own website and checked in October 2026. Seattle Cleaning is an independent directory: we do not run, employ or guarantee any listed company. Prices are as published by each company at the time of checking and can change. See how we choose listings. Spot an error? Tell us.
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