Roof Cleaning

Find a roof cleaning professional near Milwaukie, OR

Find a roof cleaning professional near Milwaukie, OR

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Top 10 Roof Cleaning Professionals near Milwaukie, OR

Q & A

Answers to commonly asked questions from the experts on Thumbtack.

How often should you clean your roof?

Some roof cleaning companies recommend that you clean your roof every couple of years, but you might need to do maintenance every year depending on the type of roof you have, the climate and the weather. Roofs in harsher climates tend to require more frequent cleaning.

Is it worth it to hire a roofer?

There are several reasons why it’s worth it to hire a professional roofer instead of attempting it yourself. The first is safety. Roofing is inherently dangerous, as a fall from a roof could seriously injure or kill you. Roofers have specialized equipment and training to help prevent accidents.  

Next is experience. Roofers know how to spot problems (leaks, missing shingles, moss or mold growth, etc.)  in your roof that could potentially save you from costly repairs down the road. 

And finally, roofers save you time by getting the job done quickly and with a high degree of quality.

Why do I need to clean my roof?

Over time, algae, moss, lichen, dirt and even salt (if you’re near the ocean) can build up on your roof. These buildups can affect the look and function of your roof unless removed. The buildup of organic materials such as moss on a shingle roof can prevent water from sloughing off as it normally would. Trapped water can rot the roof or cause early deterioration of your shingles. Even if you don’t have a shingle roof, moss and lichen absorb water, and that wet material adds weight and stress to your roof — as well as providing a home for insects and other pests, and collecting dirt. For reflective, cool roofs that redirect heat away from the home, algae and moss growths can hamper their ability to deflect the sun, which can affect utility bills. Visually, moss, dirt and algae growths on a roof can have a negative effect on perceived home value and curb appeal. For example, black algae streaks on your roof may cause a potential homebuyer to assume that the roof might need repair or replacement, when it only needs to be cleaned.

Can a roof be cleaned?

Yes roofs can be cleaned, and yes, it’s a real thing. Roof cleaning may actually be a wise investment to prolong the life of your roof. Overgrowth of moss, grime, lichen or algae can all shorten the life of your roof. If you have black streaks growing on your roof, they are likely caused by gloeocapsa magma algae spores that have landed on your roof and taken up residence. Once the algae has grown into streaks, the organism has usually been growing for several months and it’s high time to have it removed. If you live in a rainy part of the country, such as the Pacific Northwest, there’s a good chance you’ll find moss growing on your roof at some point. The northern part of your roof, as well as any parts that remain shaded all day, will provide a wet, cool haven for moss to flourish. Unfortunately this water-absorbing moss can damage your shingle roof, leading to rot if not removed. Beyond roof health and function, a clean roof can boost your curb appeal and potentially boost your home’s resale value. The national average for roof cleaning costs ranges between $270 and $350, although prices can be higher depending on how large your roof is, how steep your roof is, and what type of cleaning is necessary. Typically pros use either a pressure wash or chemical wash (made with a concentrated bleach solution) to remove algae, lichen, moss and dirt.

What chemicals are used to clean roofs?

Roof cleaning is done to remove moss, lichen, algae, and buildup of other grime and dirt. There are several methods for roof cleaning, which can include a chemical soft wash, pressure washing, low-pressure washing and hand washing. When a chemical soft wash is used, a bleach mixture is sprayed onto the roof. The bleach-based solution is absorbed by the algae or moss, which dies from exposure to the chemical. The roof is then sprayed with a low-pressure rinse of water, which loosens the now-dead material, allowing it to slide off the roof.

For homeowners, the Asphalt Roofing Manufacturers Association recommends a mixture of 50 percent laundry-strength liquid chlorine bleach and 50 percent water. Professional roof cleaning companies will use an industrial mixture that is still safe but may be more effective in eliminating algae and moss growths. Asphalt shingle roofs are the most common type of roof, but each roofing material will have its own cleaning needs, so it’s best to consult with your roofing pro before diving in. Don’t do it yourself unless you can safely navigate your roof, the chemicals and a sprayer system. When in doubt, leave it to the pros.

How much does it cost to clean a roof?

The national average for roof cleaning costs ranges between $270 and $350. Factors that can affect the cost to clean your roof are the height of your house, the size and pitch (steepness) of your roof, and the complexity of your roof’s design and accessibility. Geographic location also plays a role in roof cleaning costs as regional labor rates and area costs to do business will vary. There are several ways to clean a roof. The most common is pressure washing. Industrial pressure washers can spray over 3,000 pounds per square inch (psi) of water — which is much too powerful for roof cleaning, and may tear off shingles and damage your roof. Confirm that the roof-cleaning pro you choose will only use a low-pressure sprayer to protect your roof investment. For large algae or moss growths, pros often recommend a combination of low-pressure washing with a bleach-based chemical solution. This is referred to soft washing and should handily remove any growths taking over your roof.

Reviews for Milwaukie roof cleaning professionals
Jocelyn A.
Thorough roof cleaning and very clean gutters at a fair price. Hiring again for some roof repairs!
GreenLeaf Property ServicesGreenLeaf Property Services
Thumbtack Customer
They cleaned our roof the very next day, showed up when they said they would and did a thorough job cleaning the roof.
Marlin L.
Ian did an excellent roof cleaning job for us. He cleaned up all the moss debris and even cleaned part of the driveway that was not associated with the roof job. We most definitely will have him return to retreat the roof in a year!
Tobias Exterior CareTobias Exterior Care
Elizabeth j.
Cleaned the roof and cleaned up afterwards. Did a great job...
PDX BROTHERS Roof cleaningPDX BROTHERS Roof cleaning
Jennifer C.
Roof looks great after cleaning and treatment.
Tobias Exterior CareTobias Exterior Care
Paul S.
JAMIE cleaned and treated roof and cleaned gutters and downspouts. Work was excellent as promised.
Twin Eagle Exterior Maintenance LLCTwin Eagle Exterior Maintenance LLC
Jessie B.
This was our 2nd time having our gutters and roof cleaned. Service was quick and well done! The roof look like new and they did a great clean up job afterwards.
GreenLeaf Property ServicesGreenLeaf Property Services
Sharon O.
We hired Twin Eagle to clean our roof and we’re happy with the results. Communication was great before we started, they arrived on time, did a thorough job cleaning the roof and applying moss treatment, and cleaned up afterward. No pressure washing means no roof damage. We would definitely hire them again.
Twin Eagle Exterior Maintenance LLCTwin Eagle Exterior Maintenance LLC
Marcus P.
Good pricing, roof looks clean from moss.
Shankar k.
Great people to work with .. highly recommended for roof repair and cleaning
Big Foot professional power washingBig Foot professional power washing
Thumbtack Customer
Bert Martin came out and replaced some shingles on our roof, cleaned roof and gutters, He was very professional and honest. I would use and refer Marclay Construction again for roof and gutter maintenance and repair.
Judy M.
I needed my roof cleaned. Victor from Rise Solutions was very professional and on time. He cleaned and treated the roof. I’m very happy with the service provided. I will definitely use his services again!
El Amigo ConstructionEl Amigo Construction
Thumbtack Customer
Moss removal on roof and gutter cleaning. Josh was awesome and a very nice guy.
Tori D.
They did a great job pressure washing our house and cleaning the moss of our roof.
GreenLeaf Property ServicesGreenLeaf Property Services
Thumbtack Customer
Cleaned off my roof perfectly. Showed up on time and did a great job.
Twin Eagle Exterior Maintenance LLCTwin Eagle Exterior Maintenance LLC
Thumbtack Customer
Allen was incredibly professional - notified me of his eta ahead of time and showed up on time, diligently examined, cleaned, and cleaned up, and did an unbelievable job cleaning the roof and gutters. The before and after pictures are amazing - it's like we got a new roof. I'd hire him again in a heartbeat.
All Weather ProsAll Weather Pros
Khan C.
Quick response, professional, and did a great job. Would hire again and will likely for next roof and gutter cleaning.
UpRight Exterior ServicesUpRight Exterior Services
Melinda C.
The crew was incredibly friendly and communicative. They did a great job cleaning moss off the roof and treating it. Will call Crux again!
Crux Roof & Gutter CleaningCrux Roof & Gutter Cleaning
Terrell G.
Showed up on time and did a very good job of cleaning the roof and the area around the house when he was done.
Tobias Exterior CareTobias Exterior Care
Thumbtack Customer
Cleaned roof as contracted and removed debris except for porch which he did not have access to because I was not home
Thumbtack Customer
John did a great job. He swept all of the moss from our roof, cleaned up all of the mess, and then sprinkled moss killer at the end. I would recommend him for anyone looking to get their roof serviced for an affordable price.
Smart Cleaning ServicesSmart Cleaning Services
Craig B.
Jaime was very professional, super nice and willing to work with our schedule. He came out for an estimate and didn't try to oversell us on work that our roof didn't need. He came back a few days later and cleaned the moss off our roof and applied treatment to prevent growth. They even cleaned out our gutters. All of the debris was collected and hauled away. There isn't a single trace that they were here, except a great looking roof.
Twin Eagle Exterior Maintenance LLCTwin Eagle Exterior Maintenance LLC
Warren W.
Roof looks great! They responded quickly and came out a few days later. Recommend and will use them again. 10/22/2021 -- had them come out again to clean gutters/treat roof. Did a great job - definitely recommend.
Emilly P.
Cleaned my roof well, was friendly, and received service quickly. Although he did take care to cover/move furniture, there was quite a bit of moss on my decks, windowsills, etc like other reviewers mentioned. Not a huge deal to clean up, and may be typical of roof cleaning, but my experience prior was hand removal so I haven’t had to really clean up after before. Overall would still definitely recommend and will be contacting next year for moss removal.
Tobias Exterior CareTobias Exterior Care
Thumbtack Customer
Alex showed up exactly on time, was friendly and personable, and did a fine job-- hand-brushed moss off different roof levels, treated roof, and cleaned out gutters afterward. Looks a lot better now! Reasonable pricing, no frills, good work.
Capital Janitorial CompanyCapital Janitorial Company
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