Roof Soft Wash & Moss Removal in Seattle & the Puget Sound
Safe, low-pressure roof cleaning that removes moss, algae, and stains without causing damage. Free estimates, honest pricing, no pressure.
Your roof is constantly exposed to moisture, debris, and organic growth like moss and algae. Over time, this buildup can damage your shingles and shorten the life of your roof. At Everpeak Roofing, we use a safe, low-pressure soft wash system to remove moss, algae, and stains without causing damage. Our process not only cleans your roof but also helps prevent future growth, protecting your home and your investment.
See the difference
Before & after
Every job includes
What's included
Step by step
How it works
- 01
Free inspection so we can see how bad the moss and staining actually are
- 02
We protect landscaping and gutters before we start
- 03
Low-pressure soft wash application across the full roof surface
- 04
Treatment that kills moss at the root to slow regrowth
- 05
Final walkthrough and honest recommendations on next steps
What we look for
Common problems we see
Green moss patches holding moisture against the shingles
Black algae streaks making a roof look aged before its time
Shaded or damp sections of the roof where growth keeps coming back
Early shingle wear caused by organic buildup that was never addressed
Why homeowners pick Everpeak
WA Contractor Lic. #EVERPRL743KE. Real coverage on every job.
A detailed quote with material options before any work starts.
Phones answered 7 days a week. Most estimates within a day or two.
Free estimates, no obligation
Get your free roof soft wash & moss removal estimate
Tell us what's going on with your roof. We'll get you a written estimate, usually within a day or two. No pressure, no sales games.
- Licensed & insured, WA Lic. #EVERPRL743KE
- We answer the phone 7 days a week
- Honest written pricing before any work starts
Good to know
Frequently asked questions
What's the difference between soft washing and pressure washing?
Pressure washing blasts your shingles with high-pressure water, which strips protective granules and shortens the life of the roof. Soft washing uses low pressure plus a cleaning solution that actually kills the moss and algae at the root. It's the only method most shingle manufacturers will let you use without voiding the warranty.
How much does roof soft washing cost in Seattle?
Most single-family roofs run $450 to $1,200. Price depends on square footage, pitch, and how bad the moss situation is. Heavy moss covering a shaded north slope takes more product and labor than a light surface clean.
How often should I have my roof cleaned in the PNW?
Every 2 to 4 years for most homes. If you've got a lot of tree cover or a steep north-facing slope, closer to every 2 years. Homes in sunnier spots with less shade can sometimes stretch to 5. Our maintenance program folds this in on a regular schedule.
Will moss really damage my roof?
Yes, and it's the biggest roof killer in the Seattle area. Moss holds moisture against your shingles, lifts them as it grows under the edges, and speeds up granule loss. A clean roof that gets treated every few years will often outlast one that doesn't, by 5 to 10 years.
Is soft washing safe for plants and pets?
We protect your landscaping, rinse anywhere the solution runs off, and use products that break down fast. Pets and kids should stay inside during the treatment and for an hour after. Once the roof dries, there's no residual issue.
Can you soft wash a cedar shake roof?
Yes. Cedar shakes actually benefit from soft washing more than shingles do because moss digs into the grain and holds water against the wood. We use a gentler solution on cedar and back off the pressure even further. It extends the life of the shake significantly.