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Stop Moss Before It Wrecks Your Roof
Stay ahead of damage with seasonal roof cleaning
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Uncompromising Quality
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Rated #1 by Homeowners Like You

Roof Cleaning & Moss Removal

Serving the Greater Seattle & Portland Area

Is your roof covered in unsightly moss, threatening its integrity and curb appeal? AA Window, Roof & Gutter Cleaning's professional moss removal service is the solution you've been searching for. Our expert technicians use a gentle yet effective method to eliminate moss and protect your roof for years to come.

  • Gentle agitation of moss clumps with specialized brushes
  • Thorough debris removal using powerful backpack blowers
  • Inspection and clearing of gutters and downspouts
  • Application of moss-control product
  • Complete site cleanup included

With 40 years of experience serving the Pacific Northwest since 1985, AA Window, Roof & Gutter Cleaning understands the unique challenges our climate poses to roofs. Our moss removal service not only restores your roof's appearance but also extends its lifespan, potentially saving thousands in future repairs. Don't let moss compromise your home's protection - trust the experts at AA Window, Roof & Gutter Cleaning to keep your roof in top condition.

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Let Us Care For Your Home

Create a Plan That Works For You

We know every home—and every homeowner—is different. That’s why our plans start with what you need most and build from there, allowing you to customize as you go.

Most homeowners start with a biannual gutter cleaning to keep things flowing. Every 6 months is our most popular schedule, but some homes need more frequent care, especially with the PNW’s wet and wild seasons.

We’re your one-stop shop for proactive home maintenance. Not sure where to begin? We’ll help you build a plan that fits your home, your schedule, and your budget.

Frequency: Every 6 months (or quarterly, if needed)

Roof Moss Removal Done Right, Season After Season

Moss buildup on roofs is a common issue in our region, primarily due to the wet climate and perennial species of moss, which come back year after year. This combination creates ideal conditions for moss growth, which can lead to significant roof damage if left untreated. Moss retains moisture, causing shingles to deteriorate prematurely and potentially leading to leaks.

At AA Window, Roof & Gutter Cleaning, we address this problem through our comprehensive moss removal service. Our process begins with a gentle agitation of large moss clumps using a stiff brush, followed by thorough debris removal with a backpack blower. We then apply a specialized moss-control treatment to eliminate remaining moss and prevent future growth.

Additional Roof Maintenance Services

We also offer gutter cleaning as part of our comprehensive services. Regular gutter maintenance prevents water overflow that can lead to foundation issues, while an experienced eye on your roof can catch potential problems. 

Our Moss Removal Process

  1. Initial assessment of moss coverage and roof condition
  2. Gentle agitation of large moss clumps
  3. Debris removal using a backpack blower
  4. Downspout and gutter cleaning and inspection
  5. Application of moss-control product
  6. Thorough site cleanup

A Higher Standard for a Cleaner Roof

We don’t just remove moss—we raise the bar for what roof cleaning should be. Every job is performed with precision, care, and a deep respect for your home. From careful moss agitation to thorough debris cleanup, our team delivers uncompromising quality and service that consistently exceeds expectations. You can count on us to do the job right, every time.

A clean, moss-free roof protects your home from costly long-term damage. It’s a smart, preventive step for homeowners who want to stay ahead of repairs and maintain a healthier living environment.

Benefits of professional roof cleaning:

  • Protects roof shingles from moisture damage and premature aging.
  • Improves water flow and reduces overflow risks near foundations.
  • Boosts curb appeal by removing unsightly moss and dark streaks.
  • Supports a healthier home by reducing mold and allergen buildup.
  • Extends roof lifespan, delaying the need for expensive replacements.
     

Why Choose Us for Roof Cleaning & Moss Removal

  • Experienced technicians trained in safe roof practices
  • Affordable moss removal that’s tough on growth but gentle on your roof
  • Use of eco-friendly, effective moss-control products
  • Comprehensive service including debris removal and site cleanup
  • Flexible scheduling to fit your busy lifestyle

Protect your home's value and ensure a safe, well-maintained roof with AA Window, Roof & Gutter Cleaning's professional moss removal service. Our thorough approach and attention to detail will leave your roof clean and protected, giving you one less thing to worry about in your busy life.

Frequently Asked Questions

Choosing a Roof Cleaning provider is an important decision, and we want you to feel confident every step of the way. Below are some of the most common questions we get from homeowners just like you—covering everything from safety to service details. Don’t see your question here? Just reach out—we’re happy to help!

How do you keep from falling off the roof?

We start out by hiring people with a natural talent toward working on uneven surfaces. We hired GRAVITEC to supply and train our technicians in the use of fall protection equipment (ropes and harnesses). In addition, we use high-quality ladders with leg levelers and stabilizer bars and Korkers® brand safety sandals for traction on slippery roofs.

Will it harm my roof if someone walks on it?

Some roofing materials are more fragile than others, and we are very familiar with the different types of material and proper methods for walking on them. The real answer to this is that allowing debris and moss to accumulate on your roof does much more damage than carefully walking on the roof to maintain it. We will certainly assess your roof and determine our ability to work safely, and your roof's ability to sustain our walking on it.

What should I do to prepare for the roof cleaning service?

We will likely need access to your yard waste bin to dispose of the debris from your roof. If you won’t be home, please unlock your gates so we can get all around your home. If you have any pets, it’s best to keep them inside while we work. We may need access to water from your outdoor faucets in order to clean up afterwards, so please make sure the water is turned on. You may want to move your car away from the home, and it’s best to cover your outdoor furniture, particularly if you have fabric cushions.

Should I pressure wash my roof?

No, we advise our clients against pressure washing roofs. Pressure washing often damages composite roofs and reduces the life of the roof because it washes off a layer of the roof.

How do I remove roof moss in an environmentally friendly way?

Choosing the right moss treatment for your specific situation and knowing how to apply the right amount in the right way is the key to environmentally responsible moss removal. Our technicians are trained and licensed to apply moss treatments and will use their expertise to take care of your home and its surroundings while safely and effectively killing the moss on your roof.

How do I remove moss on my roof safely?

By choosing AA Window, Roof & Gutter Cleaning for roof cleaning, you ensure that your roof will be cleaned safely by trained technicians. First, we blow the loose debris from the roof with commercial grade backpack blowers. Next, we use a stiff brush to gently agitate the larger clumps of moss, and then use the blower again. Finally, we clear all the debris from the gutters and downspouts, treat the roof, and do a thorough clean-up.

What is the best way to clean my roof in Roof Cleaning?

AA Window, Roof & Gutter Cleaning offers affordable roof cleaning services to remove moss and debris from roofs in Roof Cleaning. We use a stiff brush on the larger clumps of moss and clear the roof of debris. Our trained and certified technicians will then apply a moss control product to your roof to kill any remaining moss.

What can I expect on the day of service?

We’ll call or text when we're on the way to your home in Greater Seattle and Portland. You don’t need to be home for outside work, but we’ll knock on the door to greet you either way. We’ll let you know if we have questions for you or if your home could benefit from any additional services. When finished, we will come to the door to chat before we leave. We can answer any other questions you may have, let you know if we encountered anything unusual during our work, and offer recommendations for a service schedule going forward.

Get Started Today! Call us at 503-828-1605 or

Our Roof Cleaning Service Area

Our Roof Cleaning services cover the Greater Seattle and Portland metro areas, including nearby suburbs and residential communities. If your location isn’t listed below, feel free to contact us—we’re always expanding our service area.

 
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Customer Reviews

See What Our Customers Say About Working With Us

With over 2,400 Google reviews, our customer testimonials speak volumes about the quality and satisfaction we consistently deliver.

4.9
2536 Reviews
View Google Ratings
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Satisfaction Guaranteed, technician cleaning gutters on a house
5 Star Review

Copelan did such an awesome job! My husband and I were very happy. He is a hard worker and seem to really care about the quality of his work which is a quality that is hard to find nowadays. Thank you 'Copelan for a job well done!

Melanie Hori
Puget Sound
5 Star Review

Friendly people who consistently exceed my expectations.

Joseph Ferretti
Portland
5 Star Review

Ethan was friendly, knowledgeable, and did an awesome job!

Teckla ReedGoodman
Portland
5 Star Review

Great service, arrived on time and were super nice. My gutters and windows look great -- would recommend!

Kelly O'Brien
Portland
5 Star Review

Garrett was prepared & did an excellent job on my windows. I even called to express my gratitude on such a fantastic job! I will request him next year. Thank you, Garrett!!!

Mary Hild
Puget Sound
5 Star Review

AA Window and Gutter employees, in and out of the office, were fantastic getting the windows in my neglected 100 year-old house sparkling clean. Office staff were crystal clear about the process and very helpful. Taylor and Cody know everything about both old and new windows - history, mechanics, weaknesses, etc. And when you look out the windows after they've cleaned them inside and out, it's as though there is no window there!

alcinda cundiff
Portland
5 Star Review

Great service keeping our roof, solar panels and gutters clean! Ryan gets it done and no mess in the yard. Highly recommend!

Rafael Cancio
Portland
5 Star Review

Kristian was wonderful. Great communication and and excellent job. Very thorough- our place looks great,

Douglas Sanders
Puget Sound
5 Star Review

Carlos did a fantastic job cleaning the windows inside and out!

Rob Dent
Puget Sound
5 Star Review

They did a very thorough job were punctual. Took pictures to show you what your roof looked like so you could make an informed decision. I’m very happy with their service. I will definitely use them again!

Melina Emerson
Puget Sound
5 Star Review

Our windows looks so great! I am very happy with the service.

Jennifer Dwyer
Puget Sound
5 Star Review

Copeland was quiet, conscientious, and detailed in the services he provided. Highly recommended!

Rob Entrekin
Puget Sound
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