Moss Removal Portland

Tile and composition roof moss removal and treatment 
Proudly Serving the Clark County & Portland Metro Area

Do you have moss Growing On Your Roof?

If you live in the Portland or Vancouver area, then you’re familiar with cloudy and rainy days. Unfortunately, this is exactly the type of weather that moss and fungi need to grow and overtake your roof.

In a wet climate like the Pacific Northwest, it’s extremely important to maintain your roof and keep moss at bay. Moss soaks up moisture like a sponge which means a mossy roof is a perpetually wet roof.

roof moss removal service in Vancouver WA | roof moss removal service near Portland OR
We provide roof moss removal in Vancouver, WA and the Portland, OR metro area.

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Is moss really bad for my roof?

Moss Removal PortlandThe Pacific Northwest is known for its wet and rainy weather, and moss is a common sight across Washington & Oregon. Many homeowners in the area wonder, “should I remove moss from my roof?” The answer is yes. Not only does a mossy roof look bad, but moss can damage your roof by:

  • Damaging your roof shingles or tile
  • Allowing water to leak into your home
  • Encouraging roof rot, bacteria and mold growth
  • Creating thin spots and holes in your roof
  • Weakening your roof’s integrity and shortening it’s lifespan

Whether you notice a small amount of moss on your roof or are dealing with a roof completely overgrown with moss, we can help remove and prevent moss from growing on your roof, and possibly save your roof from a more expensive roof repair. We specialize in moss removal, along with complete shingle roof cleaning and tile roof cleaning in Vancouver

Roof Moss Removal Services Near You (Portland and Vancouver)

Moss Removal PortlandAt Northwest Roof Maintenance, we offer a proven moss removal treatment to homeowners in the Portland and Vancouver area. Our roof moss removal process uses a combination of compressed air and soft brushing to clear away and kill moss on your roof.

So exactly how do we remove moss from your roof and prevent it from growing back?

  1. First, we’ll gently brush away the moss by hand, freeing it from your shingles or tiles.
  2. Using air, we’ll blow the loosened moss and debris out from between the shingles or tiles of your roof.
  3. Lastly, we’ll clean your gutters after every roof cleaning and always do a full clean-up of the area and check in with you to make sure you’re satisfied with the results.

Our roof moss removal process does not damage your shingles or tiles. Removing moss will help prolong the integrity of your roof.

How Much Does Roof Moss Removal Cost in Portland Metro Area & Vancouver?

Vancouver roof moss removal can cost around $1,000, depending on the size, condition, and type of roof you have. We provide free roof inspections, and will give you a free estimate on how much your roof moss removal and cleaning service will cost. 

Roof Moss Preventative Treatments​

roof moss removal treatment Vancouver, WAOn tile and composition roofs, we use a preventative treatment to kill the moss. This treatment can take up to a few weeks to fully kill the moss. The moss on your roof will slowly turn a yellowish-brown color and eventually turn black.

We use tried and true moss preventative treatments to keep moss and other roof rot-causing organisms away from your roof. Our moss prevention treatments cover the entire roof, ensuring moss has nowhere to grow.

​View Photos of Vancouver Roof Moss Removal and Treatment Jobs We've Done

3 Easy Steps to Having a Clean, Leak Free Roof.


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Customer Reviews

Rating: 5/5 ⭐⭐⭐⭐⭐

“I used NW Roof Maintenance for some minor shingle repair, gutter cleaning, and moss treatment. I am very pleased with the service I received from Micah (initial service) and Nick (follow-up service), as well as from the office personnel. They were timely and professional and provided transparent and fair pricing for the services they recommended. I chose to do a subset of the services they recommended and there was zero pressure to do the other services I chose to postpone. After a month I took them up on their offer to re-treat a section of the roof that still had some moss and they came out to treat it again at no charge and hassle-free. Highly recommend.” -Patrick T. on Google

Rating: 5/5 ⭐⭐⭐⭐⭐

“A fabulous company! Everyone, from administrative staff to people that did the work were professional and great to work with. The roof cleaning was exceptional. When the weather looked like it was going to turn, they voluntarily delayed the final moss removal application and came back later. They did extra work to clean out a downspout. And the price was very reasonable. Will certainly use them again. Can’t recommend them enough.” -R. Kennedy on Google

Rating: 5/5 ⭐⭐⭐⭐⭐

“Oscar and Matt were awesome to work with. They came to do a small roof repair as well as a moss treatment on roof and gutters. They explained everything they were doing and answered any questions I had about their process. Reuben did the initial inspection and provided several before photos. After the repairs were done, Oscar and Matt provided after pictures to confirm all the required work was completed. Very professional, very polite, great to work with!” -Shane M. on Google

Rating: 5/5 ⭐⭐⭐⭐⭐

“Everyone I dealt with was professional and just plain “nice”. The quote was reasonable and the young man who did the work was polite and worked hard (lot of moss due to lots of trees/shade and a few years of deferred maintenance) to get the moss off our roof and cleaned up the most of the moss that had fallen to the ground. We will use them again!” -Kim L. on Google

Rating: 5/5 ⭐⭐⭐⭐⭐

“This spring was so wet that the moss grew at twice the pace of other years! I had a friend recommend NW Roof Maintenance and they came out quickly to give me an estimate and because I am a senior citizen gave me a discount on the total. The price was fair and I hired them. I will recommend them to my friends because they cleaned the roof and all the debris from the roof so I didn’t have a mess to clean. Thanks for a great job!” -C.C. on Google

Rating: 5/5 ⭐⭐⭐⭐⭐

“Their quotation was the only one of the three that reflected what I wanted done rather than what they thought I should have done to the moss on my roof. They also had the most reasonable price. The technician was very courteous, did a great job and cleaned up afterwards.” -Rod E. on Google

Northwest Roof Maintenance Inc. has an average rating of 4.6 based on 120 reviews on Google.


Yes, we do provide a warranty on our treatments. If your first application isn’t effective, we’ll come back within the warranty period at no cost to you!

Our moss prevention treatment can be applied even in the rain. We have two different treatments. One is used specifically when it is wet and the other during the dry months. The wet weather treatment is optimal for when we have our rainy Portland and Vancouver weather.

This is very dangerous and we do NOT recommend it. Every year, thousands of homeowners hurt themselves while trying to work on their roof. Additionally, if you’re not experienced working on roofs, you can cause a lot of damage.

On cement tile roofs a high-pressure wash may be necessary to free moss, mildew, lichen, and algae. This process can accelerate the deterioration of your roof, so we only use this method in extreme cases, or as required by HOA regulations.

  • Pricing typically starts at $1,000 for complete roof cleanings.
  • Pricing is based on factors that include:
    • Size of the roof
    • How dirty it is
    • Type of roof
    • How steep it is
    • How easily it can be accessed
    • Height of the roof
  • Roof moss removal and cleaning in the Portland/Vancouver area with Northwest Roof Maintenance can range anywhere from around $1000. That's why we provide free estimates and inspections.

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