Roof Cleaning
Soft-Wash Roof Cleaning in Port Orchard & Kitsap County
Extend the life of your roof, restore curb appeal, and kill moss & algae at the root, without a drop of high pressure.

The wet Pacific Northwest climate is brutal on Kitsap County roofs. Moss and lichen root into shingle seams and metal panel laps, and gloeocapsa magma, the black-streak algae, feeds on the limestone filler in asphalt shingles. Left alone, biological growth traps moisture against your roof 24/7, shortens the shingle life by up to a decade, and voids most manufacturer warranties.
Sound Exterior Solutions uses the ARMA-recommended soft-wash method: a low-pressure, high-volume application of a professional-grade sodium hypochlorite blend that kills growth to the root, then a controlled rinse. No shingle-shattering high pressure. No lifted tabs. No voided warranties. Just a clean roof that looks, and lasts, like new.
We treat every roof type Kitsap County throws at us: architectural asphalt, three-tab, standing-seam metal, corrugated metal, cedar shakes, tile and low-slope commercial roofs.
Extends the Life of Your Roof
Removing moss and algae stops the moisture cycle that shortens roof lifespan and protects a costly replacement.
Manufacturer & ARMA Approved
Soft-wash is the process specifically recommended by GAF, Owens Corning, CertainTeed and the Asphalt Roofing Manufacturers Association.
Kills Moss to the Root
One treatment kills existing growth and prevents regrowth for 3 to 5 years. Moss simply dries and falls off in the next few rains.
Safe for Landscaping & Pets
We pre-saturate plants, monitor runoff, and use pet-safe chemistry so beds, koi, and pups stay unharmed.
Insurance-Friendly
Roof-mounted power washing is a common insurance claim denial. Our documented soft-wash process is a claim-safe alternative.
Restores Curb Appeal Instantly
Black streaks, green moss patches and rust runs disappear, often making a roof look 15 years younger.
What's Included
Every Roof Cleaning job covers
- Asphalt architectural & 3-tab shingle roofs
- Standing-seam and corrugated metal roofs
- Cedar shake and cedar shingle roofs
- Concrete, clay and composite tile roofs
- Low-slope TPO, EPDM & modified-bitumen commercial roofs
- Downspout & splash-block cleanup on completion
Our Process
How Roof Cleaning works with us
Inspection & Prep
We walk the roof, note trouble spots and loose flashing, tarp landscaping, and pre-wet vegetation on all sides of the home.
Soft-Wash Treatment
Low-pressure application of professional-grade solution saturates the entire roof, dwelling long enough to kill moss, lichen and algae to the root.
Controlled Rinse & Cleanup
Gentle rinse of roof, gutters and surrounding surfaces, with a final walk-through, debris haul-off, and photo documentation of the finished job.
Why Sound Exterior Solutions
The right roof cleaning team for Kitsap County
Zero-Pressure Guarantee
We never point a pressure wand at your shingles, period. Our process is warranty-safe and insurance-friendly.
Licensed, Bonded & Insured
Full contractor license and $2M general liability. Roof work is high-risk, hire a crew you can verify.
Trained W-2 Crew
Not day-labor. Every technician is trained in-house on manufacturer soft-wash protocols and OSHA fall-protection.
5-Star Reputation Across Kitsap
Consistently top-rated by homeowners in Port Orchard, Bremerton, Silverdale, Poulsbo and Gig Harbor.
Local Coverage
Serving Port Orchard & all of Kitsap County
Roof cleaning throughout Port Orchard, Bremerton, Silverdale, Poulsbo, Bainbridge Island, Kingston, Seabeck, Gig Harbor and Belfair. Waterfront homes, HOAs and multi-building commercial properties welcome.
FAQ
Roof Cleaning: questions we hear a lot
Will pressure washing damage my roof?+
Yes, high pressure blows the protective granules off asphalt shingles, cracks tile, lifts metal seams, and voids most manufacturer warranties. That's exactly why we don't do it. Every roof we clean is soft-washed at low pressure per ARMA guidelines.
How long does a soft-wash roof cleaning last?+
Most homes in Kitsap County stay visibly clean and moss-free for 3 to 5 years after a soft-wash treatment. Homes under heavy tree cover or on the waterfront may benefit from a light 'refresh' treatment every 2 to 3 years.
Is the chemistry safe for my plants, pets and koi pond?+
Yes. We pre-saturate landscaping before, during and after application, monitor runoff, and use manufacturer-recommended sodium hypochlorite blends that break down into salt and water. We can also flag off ponds and edible gardens on request.
Can you clean a metal or cedar roof?+
Absolutely. We adjust the mix strength and dwell time based on roof material. Cedar shakes get a milder bleach-based mix to preserve the wood; metal roofs get a rust-safe treatment that also brightens oxidized paint.
Do you clean the gutters too?+
Gutter cleaning is a separate service and is quoted separately from roof cleaning. Most customers bundle both on the same visit for convenience, just let us know and we'll add it to the quote.
How much does roof cleaning cost in Kitsap County?+
Most single-family soft-wash roof cleanings fall between $450 and $1,200 depending on square footage, pitch, story count and how much moss is present. Send us photos or an address and we'll price it accurately within 24 hours.
Do you offer recurring maintenance plans?+
Yes. Our Kitsap County Maintenance Plan schedules a light annual treatment plus discounted bundled services (gutters, house wash, windows). Most bundled customers save 10 to 20% compared to one-off bookings.
Bundle & Save
Pair roof cleaning with
Most customers save 10% to 15% by bundling two or more services on the same visit.
Ready to restore your property?
Get a free, no-obligation quote in 24 hours or less.
