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Find a roof cleaning professional near Bothell, WA

Find a roof cleaning professional near Bothell, WA

9 near you

Find a roof cleaning professional near Bothell, WA

9 near you

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Top 9 Roof Cleaning Professionals near Bothell, WA

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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.

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.

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.

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.

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 Bothell roof cleaning professionals
Thumbtack Customer
cleaned roof and gutters.
Johnston's, Inc., Clear N' Bright WindowsJohnston's, Inc., Clear N' Bright Windows
Ravi V.
Leo did a great job at cleaning our roof. He was prompt in responding and getting the work done. Would recommend him for any roof or gutter cleaning.
Diamond Pro RoofingDiamond Pro Roofing
Jill D.
Very good job roof cleaning n moss removal!!
Premium Solutions Exteriors LLC.Premium Solutions Exteriors LLC.
Thumbtack Customer
The workers did a good job. They worked steadily and the roof looks good. They cleaned the roof debris from our yard and deck. Very happy
Proman ServicesProman Services
Cheryl S.
Diamond Pro roofing did a great communicating prior to the job and later a great job cleaning my roof and gutters, and treating for moss. They cleaned up everything very nicely! Would definitely hire them again!
Diamond Pro RoofingDiamond Pro Roofing
Udish V.
Leo is very professional and has exceeded my expectations on my roof cleaning. He has not only done an outstanding job cleaning the roof and gutters but also power washed my porch, deck and drive way so that the house looks clean. After the cleaning, my house looks very clean and new. Thanks Leo for the great work.
Diamond Pro RoofingDiamond Pro Roofing
Thumbtack Customer
Hired for roof cleaning/moss removal. Did great job and came in under bid.
Proman ServicesProman Services
Robyn O.
Did exactly what was promised. I am very happy with my clean roof and gutters!!
Proman ServicesProman Services
Thumbtack Customer
Jorge did a great job! He was very helpful fixing the valleys on my tile roof. My 'retired' neighbor watched the whole process and was so impressed he is having Jorge clean his roof!
Proman ServicesProman Services
Thumbtack Customer
Jorge did an amazing job cleaning a very difficult roof. He also identified issues that could have been large problems down the road and had solid solutions. Will be my go to for windows and roof support.
Proman ServicesProman Services
Andy L.
Bruno and his guys did a great job cleaning my roof at a reasonable price. They were thorough and very friendly. Thanks!
🏠Excelencia  Services🏠🏠Excelencia Services🏠
Joe H.
Marcos showed up when he said he would and did the roof cleaning job as described. Would hire again!
MV construction and cleaning services LLCMV construction and cleaning services LLC
Grace L.
Leo did a good job cleaning my roof and gutter. Also, he carefully clean windows and ground around house afterward. He is hardworking, responsive, on time and his bid is competitive.
Diamond Pro RoofingDiamond Pro Roofing
Ali R.
Jorge did a great job cleaning our roof and windows. He is very professional and provides high quality work. I would highly recommend him!
Triple J's Windows and Gutters  CleaningTriple J's Windows and Gutters Cleaning
Thumbtack Customer
Pedro and his brother arrived exactly when they said they would. Both were very friendly. Cleaned the roof and the surrounding area as per my expectations. Will hire them again.
ASAP Graffiti Removal and Pressure Washing LLCASAP Graffiti Removal and Pressure Washing LLC
Giang n.
Excellent job! Leo is professional and went an extra mile in helping me seal two holes in the gutter that caused annoying leaks. Excellent roof cleaning work & neat cleanup after the job. Highly recommended!
Diamond Pro RoofingDiamond Pro Roofing
Thumbtack Customer
we included to request power wash as well and they agreed, both roof cleaning n power wash was done very nicely, quite happy with there services and would definitely recommend them, Thanks Gary Triv
Proman ServicesProman Services
Stephen S.
He did an amazing job cleaning up my roof that the previous owner neglected. Took the time and cleaned everything up nicely when finished. He also fixed a gutter nail that had popped while he was up there. I will definitely be calling again next year for services.
Diamond Pro RoofingDiamond Pro Roofing
James L.
Had my roof and gutters cleaned. The experience was excellent from my initial contact until I received the invoice. The team was prompt, courteous and did a wonderful job. Will definitely use them again next year.
The ProClean TeamThe ProClean Team
Lari L.
Because the pitch of my roof is so high Ward was not able to complete the job. He did inspect my gutters and roof and indicated that I really didn't need them cleaned. Because he wasn't able to complete the job he did not charge me for his time in driving out to the house. I offered to pay him but he still would not take my payment. Ward was very honest and I appreciate how fair he is in his business.
Northlake pressure washNorthlake pressure wash
Chetan S.
Marcos is awesome. He sent his team member to clean my roof. The person did a good job, but the moss from my roof top splattered onto our neighbors house on both sides and they were understandably upset. But he cleaned up their walls and their yard of the fallen moss. This is one thing he could take care of from next time and let the owners know that this is possible, so that they can inform their neighbors. Unfortunately, the water had splattered onto our neighbors car as well and left some water marks. They were quite upset with it. However, Marcos contacted them and helped fix their issue. Overall, customer service is terrific
MV construction and cleaning services LLCMV construction and cleaning services LLC
Alexandra B.
Leo cleaned my roof and gutters today. He was responsive to my inquiries and did a fantastic job! He even sprayed down the windows and the deck after her was done. Leo takes real pride in his work. A rarity in this industry. I will absolutely use his services again.
Diamond Pro RoofingDiamond Pro Roofing
Thumbtack Customer
I submitted a request for bids last week and the roof and gutters were cleaned less than a week later. Quick response times, on time to job, and work done and cleaned quickly. I appreciate the availability, considering the last time I requested quotes, I had few responses, and scheduling out until August. I have already made a couple of referrals for others to call Megan at Clear N Bright. Thanks.
Johnston's, Inc., Clear N' Bright WindowsJohnston's, Inc., Clear N' Bright Windows
Jennifer B.
I am extremely happy with the service I received. I had the moss cleaned off my roof. Moss treatment along with my whole driveway and back patio which are both large. The price was very fair. Everything turned out wonderful. I would recommend ProClean to anyone. It was nice also being able to do both with one company
The ProClean TeamThe ProClean Team
Thumbtack Customer
I had a light build up of algae on the roof that I wanted to have removed and to have a sealer put on. Jeffery was one of two companies that left a bid and he was less than the other but his words seemed to speak to me that he would be the right choice. We had two other companies that said they would leave a bid but didn't. Jeffrey was on the job when he said he'd start, the work was done to our satisfaction, he cleaned up afterwards and one of our neighbors asked him for a bid. He would only ask if he thought he was doing a great job.
Ospray Roof CleaningOspray Roof Cleaning
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