Seattle, WA408 Roof Sealers near you

Where do you need the roof sealer?

Answer a few questions

Tell us what you need so we can bring you the right pros.

Get quotes

Receive quotes from pros who meet your needs.

Hire the right pro

Compare quotes, message pros, and hire when ready.

Seattle Roof Sealers

Browse these roof sealers with great ratings from Thumbtack customers in Seattle.

  • 4 years in business
  • 367 hires on Thumbtack
Tom O.
Verified review

Our roof is 23 years old and I did not want to risk the damage involved with pressure washing. The ASAP team made the roof brand new with just a blower and brushing. They also cleaned the outside of the gutters and clear all the debris from the roof. Great experience and would will highly recommend them in the future.

Top Pro
  • 11 years in business
  • 239 hires on Thumbtack
  • Top Pro on Thumbtack
Antonio S.
Verified review

Jorge did an excellent job cleaning my roof, gutters and replacing a wall vent that a woodpecker had destroyed. He also helped me with putting some scare tape on the roof vents free of charge. He's very punctual (came a few minutes early) and went out of his way to use two treatments on a portion of our roof that had been overrun with moss. He'll be my first recommendation to anyone needing these services.

  • 27 years in business
  • 118 hires on Thumbtack
Beth N.
Verified review

Troy did a great job on our very dirty windows! (A major roof cleaning happened before his visit to us!) He was prompt and professional. I would certainly recommend him to others.

Top Pro
  • 6 years in business
  • 71 hires on Thumbtack
  • Top Pro on Thumbtack
Bob S.
Verified review

Hired Justice to clean our house roof (asphalt shingle) and gutters along with two other outbuildings which had metal roofs. Justice always promptly returned emails or phone calls, showed up when he said he would and did a very nice job. He was pleasant, but worked steadily. His bid was at least half of what the other bids came in at, which was also very nice. Would definitely hire Justice again to do the roofs and am thinking about getting our windows done now. He was a great find.

Northern Services
from 51 reviews
  • 5 years in business
  • 67 hires on Thumbtack
Ken P.
Verified review

Cleaning roof and gutters

  • 28 years in business
  • 116 hires on Thumbtack
Jose C.
Verified review

Entered my project information on Thumbtack for pressure washing of asphalt driveway and unsealed concrete half basketball court. Clear N' Bright had best price. What made me feel they were a straight up (customer friendly) business was that they were quick to reply, answered all my questions, asked me questions to clarify job, and were very professional. They were able to accommodate the appointment to my schedule. I felt trust. So when they came to do the job I felt like they would do a good job. And they did! They had told me how long it would take, gave me additional maintenance tips and responded to all my questions in a friendly manner. The guys used a professional rotary pressure washing tool for both surfaces and then did a rinse to leave behind two clean surfaces. These guys were cool. I also asked about the other services they do and the cost. I got a quote for window cleaning and roof moss removal and treatment. I didn't proceed with those projects but the prices they gave me were very reasonable. I will hire them again. Thank You Clear N' Bright! you came through for me. You have a winning formula from what I see. 44

Top Pro
Holloway Home Maintenance
from 41 reviews
  • 3 years in business
  • 64 hires on Thumbtack
  • Top Pro on Thumbtack
Maggie S.
Verified review

Gutter cleaning, roof inspection, maintenance. Very knowledgeable and helpful. Hired them for yearly work permanently.

First Choice Home
from 40 reviews
  • 19 years in business
  • 44 hires on Thumbtack
Verified review

The gentleman cleaning our roof did an excellent job. He was here on time, took a reasonable amount of time to do the cleaning (versus rushing through it and leaving), and he cleaned the ground around the house after he finished. My husband was very impressed with the job that First Choice Home did. We would recommend them and use them again.

  • 3 years in business
  • 45 hires on Thumbtack
Phil L.
Verified review

had my roof and gutters cleaned. the job was done to perfection even the clean up. dave is very professional and very polite

Top Pro
Royal Windows & Gutters
from 35 reviews
  • 52 hires on Thumbtack
  • Top Pro on Thumbtack
Megan M.
Verified review

Yay, "I can see clearly now, the dirt is gone!" Mike did a great job on our windows and put moss treatment on our roof! Highly recommend!!!

Top Pro
Sound Pacific LLC
from 24 reviews
  • 3 years in business
  • 30 hires on Thumbtack
  • Top Pro on Thumbtack
Alexandra L.
Verified review

Our condo association was looking for a ballpark quote for roof replacement within the next few years. I indicated in my Thumbtack quote request that our need was not immediate, yet I still received a same-day response back from Michael. He came out and performed a very thorough inspection of our roof, gave us his opinion of the remaining life left, and recommended routine maintenance tasks to correct the problems with our caulking joints to ensure that we get the maximum life out of our roof. I was very impressed with his professionalism and willingness to quote a not-immediate need. We are now going to have Sound Pacific perform the much needed joint re-caulking on our roof vents and look forward to working with this company in the future!

Performance roofing Llc
from 21 reviews
  • 10 years in business
  • 22 hires on Thumbtack
Karen E.
Verified review

I am so impressed today. The repair on my roof was done beautifully and so fast. Mike was on the job the entire time and helped me with a couple of projects I had already started and needed a hand with. He is so pleasant and I will recommend him to my friends.

  • 5 years in business
  • 24 hires on Thumbtack
Nancy R.
Verified review

Larry did a great job cleaning my roof. He cleaned everything up and took the container to the curb to be picked up by Yard Waste on Tuesday. I would definitely hire Larry again.

Northlake pressure wash
from 16 reviews
  • 1 year in business
  • 20 hires on Thumbtack
Jennifer D.
Verified review

Ward pressure washed my back patio and roof. Reasonable and great service. I would highly recommend him.

Taylor Made Construction
from 15 reviews
  • 33 years in business
  • 14 hires on Thumbtack
Shin-Yu P.
Verified review

Cliff cut soffits and replaced vents in our roof. We had very hard time getting roofing contractors to come out and assess the work as we are in peek roofing/rainy season. Cliff gave us a reasonable quote below the cost of other roofing contractors and completed the project in less than a day.

Roof Tec
from 11 reviews
  • 1 year in business
  • 15 hires on Thumbtack
Linda T.
Verified review

Gutter Pro America provided excellent service at a fair price. The team was very respectful of my property. After they finished cleaning my roof and gutters, they cleaned up all the debris that had fallen on my lawn and deck. I highly recommend this company.

Josan Roofing Llc
from 8 reviews
  • 3 hires on Thumbtack
Donna P.
Verified review

I hired Josan Roofing to put a new roof on my house and garage. Paul Rosas was so professional and kept in communication with me throughout the entire process. He was on time and got the work completed in 1 day. Excellent quality and a pleasure to work with. I highly recommend using Josan Roofing

  • 8 hires on Thumbtack
Quynh H.
Verified review

We had several bids from different companies to replace our roof and J&C Roofing came out to have the best bid! They’re very professional, providing us a very honest estimate on what needed to be replaced. The crew was so polite, they always informed us of the progress from finish to start, completed our roof in an timely manner. In the middle of the project, they found that one of our skylines was never fasten down with any screws by the builder 20 years ago! They went beyond and above to picked up screws from the hardware store and fastened it down so that it’s secured. We’re so thankful for the details oriented crew and their keen sense. This kind act is so awesome! At the end of the project, they even took photos from the new roof so that we don’t need to climb up there to see ít! We wanted to express our sincere thanks to the J&C crew for a great quality work your crew did, for a best deal and excellent materials used. This roof will be a permanent one for us! We will highly recommend J&C Roofing to anyone who needs a roof project. We’re happy and proud to share our new beautiful roof here.

Square Solutions, LLC
from 6 reviews
  • 4 hires on Thumbtack
Megan S.
Verified review

I am beyond impressed with this company's level of professionalism and teamwork for our recent roof and gutter cleaning. They were able to answer all my questions, arrived promptly, took care not to damage our landscaping and cleaned up once done. Owners Brandon and Harry are Kitsap County natives who have started a pay it forward type movement to roof the community by donating entire roofs to families in need using a portion of all roof replacement proceeds. If you're looking for great communication and quality work while supporting those in our local community you won't be disappointed with Square Solutions.

from 3 reviews
  • 2 years in business
  • 5 hires on Thumbtack
Sunil M.
Verified review

roof cleaning & moss treatment

from 1 review
  • 8 years in business
  • 1 hire on Thumbtack
Jason C.
Verified review

Will was quick to respond and was able to fix my roof issues at a very good price.

Q & A

Answers to commonly asked questions from the experts on Thumbtack.

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.

What is a standing seam metal roof?

A standing seam metal roof may be a strong, durable, safe choice when you’re considering metal roofing installation options. A standing seam refers to the raised seam where the sheet metal roofing panels join. Traditionally, shingles and roof panels lie flush to the roof, making them more prone to rust or penetration by water at their seams. In a standing seam metal roof, the raised (or standing) seams run vertically from the roof ridge to the eaves, with no horizontal seams. In addition, the fasteners joining the metal panels together are concealed, providing even fewer opportunities for water or moisture to build up. The cost to install a standing seam metal roof will depend on the type of metal you select, the size of your roof, and the cost of roofing labor in your region. Materials will play a major role in your metal roofing installation costs. If you select standard galvanized steel, the cost per square (100 square feet) might be in the $150-$300 range, while a high-end choice such as copper or zinc could be between $1,000 and $1,500 per square. Here is one example of cost:   

  • Standing seam metal roof: $300 per square to start, including materials and labor.
    • A 30-square roof could cost $9,000 or more.

Can a metal roof be installed over shingles?

Metal roofs are durable, environmentally friendly, safe and budget-friendly. If you’re considering an update, metal roofing installation doesn’t have to mean completely removing your old roof. In many cases, metal roofing can be installed over your existing shingles. Research building codes in your state, as many require that after two roofs have been installed, all roofing materials must be completely removed before a third roof can be put on. This protects your home’s structural integrity and your family’s safety. Carefully read contractor reviews and choose someone with extensive experience with metal roofing installation. One concern when installing metal over shingles is that over time, condensation can build on the shingles and cause the metal to rust. This will lead to rust around the panels, making them more likely to come loose in a storm. Nationally, the average cost for metal roofing installation ranges from $6,000 to $20,000. The wide price range represents different roof sizes, different types of metal, and the cost of labor in different parts of the country — and can also include the cost of removing an old shingle roof prior to installing the metal. As a line item, the average cost of removing an old roof to prepare for installing a new roof, plus adding new roof decking, costs on average about $45-$75 per square (the pro roofer’s term for 100 square feet), depending on the pitch of the roof. Always make sure you have a clearly written contract and a warranty on both the labor and the metal.


Hire skilled professionals for absolutely everything.