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Cornerstone Roofing Our Re-Roof Division specializes in Cedar Shake and Composition Shingle Roof Replacements on steep slope Residential and Commercial properties, along with gutters, downspouts, and skylights. We have a dedicated Repair Division that specializes in repairing existing roofs' needs, such as roof leaks, flashing, ventilation issues, skylight re-flashing and replacement, roof maintenance, and more. We offer free roof estimates for Cedar Shake and Composition/ Asphalt shingle roof replacements, roof repairs, gutters, skylights, and maintenance.
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Cornerstone Roofing has been servicing King and Snohomish counties since 1996. Our leadership team has extensive experience in all aspects of the roofing industry. We are dedicated to providing our clients with a dependable roof system through high quality workmanship, superior materials, and a premium level of customer service.
Cornerstone Roofing, Inc. was founded in 1996 by Owner James Latter and began with just five employees. Celebrating over twenty years of being in business, Cornerstone has grown to a team of more than fifty today. Based on your roofing needs, we will match you with either our Re-Roof Division or Repair Division, and our knowledgeable estimators and certified technicians will help guide you through the roofing process. Our Team of Administrators is comprised of our President and Owner James; CEO Bill; and Office Manager Sara.
Cornerstone Roofing holds elite credentials with the top major roofing manufacturers in the U.S. Adhering to the manufacturers' installation guidelines, Cornerstone utilizes the highest quality roofing products, upholds a strong standard of excellence in the roofing industry, and displays extensive knowledge in each product we offer.
Cornerstone Roofing is honored to be recognized by outstanding organizations and publications such as KOMO 4 News, Roofing Contractor Magazine, The Seattle Times, Puget Sound Consumers' Checkbook, Angie's List Magazine, CertainTeed, The Seattle Post-Intelligencer, the Bothell-Kenmore Reporter, 425 Magazine, Newcastle Neighborhood Life Magazine, Woodinville Influence Magazine, The Points Living Magazine, and more.
Reviews (34)
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Linda Clapham
Jun 07, 2022
I appreciated that Cornerstone communicated with me every step of the way and that I could ask the project manager specific questions about what was being installed on my roof. Services: Gutter installation, Skylight installation, Attic venting, Roof installation
Jeff Woods
Apr 25, 2022
"Cornerstone was spot on from beginning to end. Starting with the estimator to the job clean up. They were very thorough & professional. I requested a specific time frame and they were more than accommodating. The first day went like clockwork with the crew showing up right on the quoted time and the dumpster showing up within 5 minutes of the crew.

Tear off was done in a day, shingles were delivered and stacked on the roof that same evening and the job was completed the next day. Two skylights were also replaced and are beautiful. I watched several houses in our neighborhood take at least 3-4 days. The project was completed with a roof inspection a couple of days later and I couldn't be happier. I got estimates from six companies and Cornerstone was who I felt most comfortable with. The whole experience was excellent and I would recommend them to anyone."
Scott P.
Apr 07, 2022
I had a great experience with everyone from CSR. The quote was completed promptly and was very thorough with clear explanations of the work to be completed (including pictures). A team member came to the house to show us roofing samples. We then drove to a few homes that had the same roofing material that we wanted to confirm our selection. The CSR roofing team was super efficient and professional; in and out in two days.

During the final inspection, Juan took his time walking me around the new roof and answering my questions. He even pointed out some chimney work that I needed to have done and answered some questions about siding maintenance! Great experience all the way around!
Ed R.
Mar 31, 2022
James represented the company very well. He gave us option to help with Certainteed claim and quoted us the roof replacement cost based on what the job required. He did not see replacing material that did not need to be replaced. Other companies quotes were not this way.
Brigid Everett
Jan 26, 2022
Every question or concern we had was addressed. Very friendly and professional workers, project coordinator and quote estimator. Quick, thorough and the roof looks fantastic! Services: Gutter installation, Skylight installation, Roof installation
Logan R.
Dec 23, 2021
We had Cornerstone roofing replace our roof in the summer of 2020. They were excellent from start to finish. We also recently had them come back and patch an old sewer vent that our plumber never took care of. They did a great job, quickly patched the area, and were very reasonably priced. They also replaced our gutters. We couldn't be happier with their service!
Matt Kellner
Dec 19, 2021
CSR installed a new roof on our home in June 2021. Their customer service and sales people were outstanding, and the roof itself is great, though we're still "proving" it now that we're in winter. The foreman for the job also very kindly refinished a porch-ceiling board that we thought was rotten but just needed some surface fixes. We really appreciated that.

We ran into some issues with the installation crew (disposal of old roof materials and unused supplies, broke a flower pot and damaged our rose bush, etc.), but the company quickly addressed this issue with me when I had posted about it (and to be fair, I neglected to bring it up with them privately at the time). They issued us a gift card to compensate for the damage, and said they would address the issues with their install crew. I appreciate their prompt response, and am satisfied with their promise to prevent such issues in the future. Thank you.
Alice Birch
Oct 27, 2021
They provided top notch customer service, hands down better than the other roofing companies I contacted. The work crew was great. I appreciate the attention to detail. Service: Roof installation
Tim Coglon
Oct 25, 2021
We would highly recommend Cornerstone Roofing, Inc. (Bothell, Wa.). The whole staff was professional, knowledgeable and a pleasure to work with. The estimate from Dave Lundeen was very competitive. He did not try to sell us unnecessary product and thoroughly discussed the options. He provided us with detailed photographs and drawings of the work to be done.

We had a number of bids and Dave was the only one who took the time to look in the attic crawl space and discussed the interior condition. It was a pleasure to work with Kristy Hoff (Coordinator)who's professionalism and response with communication was excellent. The whole office staff went out of their way to be helpful. The remainder of the team Greg (the project manager) who was outstanding in responding to questions and keeping us informed, to the roofing crew who were very fast and efficient as well as respectful of the surrounding foliage, to Alberto who did the final inspection and answered all our questions. All were excellent in their service.
Kenneth C.
Oct 03, 2021
My name is Kenneth Cole and this company is five star all the way. They installed a new roof on our house and it looks fantastic! Everyone we dealt with from estimate to final inspection was professional and friendly. Fair price with an excellent warranty and job was finished on time. Also excellent cleanup after job was finished. Special shout out to Mike Little and Kristy, thank you!
Marcella Egan
Sep 14, 2021
I strongly recommend Cornerstone Roofing. Michael, who quoted my roof replacement, was a pleasure to work with. He was honest, professional and knowledgeable. The crew that came out to do the install was fast, efficient, and clean. The whole experience was exceptional. Service: Roof installation
R. I.
Aug 27, 2021
Very pleased with the job Cornerstone did. We had a new roof put on. We got other quotes, but found Cornerstone to be the most reasonable (not the lowest, but you should see the reviews the lowest guys have). They did the job in one day, since we don't have a huge home. Great clean up. Very responsive to a cosmetic issue we raised after some flashing needed to be hammered down. Sent someone out immediately to fix it. I do recommend this company to anyone who needs a new roof.
Lynne W.
Jul 29, 2021
Don't bother calling if u need something other than a full roof repair. They aren't doing anything other than full roof replacements. I did use them before and they were decent in price and quality. they did offer several referrals and I appreciate that. Response The power of Yelp. Thank u for calling me back after reading my Yelp review.

I appreciate all the recommendations you gave. It's really disappointing because many roofing companies don't want to do small work anymore so what do those customers do? Hopefully I'll have luck with one of the 3 u suggested.
Melody Williams
Jul 25, 2021
CSR went above my expectations on my roof installation. Very professional starting with initial bid, billed exactly as quoted, quality install and great clean up daily, they even send out a QC after roof is complete to go over the roof installation. Overall a topnotch company I would highly recommend!
Jason & Celyn
Jul 06, 2021
They did a great and honest job inspecting my roof. Unlike other contractors they showed pictures of the areas that needed repairs. They didn't try to sell me a new roof that I didn't need yet. I got a competitive bid on a new roof and will use them when it's time. Service: Roof repair
Ramona C.
May 25, 2021
Cornerstone wasn't able to do my repair project, but I'm compelled to write a 5-star review for them anyway. They responded to my request for a quote very quickly, and took the time to give me a recommendation for who to contact for my job. They also gave me advice on looking up my warranty to see if the repair work may be covered by that. Not often these days do you see a company going out of their way to help you when they're not going to make a dime from it. Really appreciated it!
Tim C.
Apr 29, 2021
You know it's time for a new roof when you have to scoop a half inch of asphaltic shingle grit, coming off your 20+ year old roof, out of your gutters every year. I dread getting estimates for any kind of house repairs. But talking with James when he came out to do the estimate was really helpful. He explained the entire process start to finish without sales pressure.

I was impressed at how fast (and well) the job was done. It looks great. Craig was good at getting back to me with the random questions I had before and during the job. I learned that ice and water is not just a beverage. We were surprised how well the area was cleaned after seeing so much old roof materials on the ground. It was great how someone even showed up a day after the roof was done to do a final sweep and check for nails on the ground.
Susan S.
Apr 21, 2021
You could not ask for a more honest, amazing, responsible, and respectable roofing company. From the owner, Jim, who is a delight, to the office, who are super nice and helpful, to Craig, the awesome (and funny) foreman who seems to work 24/7, to the roofers themselves, who are pleasant and the hardest working roofers I've ever seen. Even my handyman, who has been over here while they're working, commented on how crazy hard they work.

But in addition to the obvious quality, their finesse and skill with fixing my sagging roofline, the ease with which they removed a surprise double-done roof with two layers, and rotting wood, the true pleasure it is to work with such a competent and friendly and nice team cannot be beat. Even the gazebo shows the precision craftsmanship! I highly, HIGHLY, recommend!
Paul G.
Mar 16, 2021
We were amazed with the speed of the project, the quality of the work, the respect for our property, and the clean up during and after completion.
John Brooke
Feb 26, 2021
These guys are great. I had them back after 4 years to check on a leaking skylight. It was over a covered deck and I never noticed it was leaking before. Cornerstone came out the next day in a rain storm and inspected it. They informed me it was leaking due to a flashing error during installation. They tarped it and came back a week later to repair it. They covered all costs and did a great job fixing it. It is great to see a company stand behind there work. They have done 2 roofs for me and I will use them again.
Bryan Z.
Feb 22, 2021
I had a pleasant experience with Cornerstone Roofing though I didn't use their service. I made a quote from the website but unfortunately was told they have a backlog in roof repair mostly due the recent snow. To my surprise later on I received a very detailed email telling me that my roof warranty might be still valid and recommended me several reputable companies that could help inspect & repair my roof.
Thomas M.
Feb 13, 2021
Cornerstone was awesome! Very communicative and flexible. Had to reschedule a day later because of rain, but they even worked in the rain after the initial tear off! Roof looks beautiful and they did a great job with clean up.
Pamela G.
Jan 13, 2021
My friend had her roof replaced this summer by a different roofing company and it was a nightmare. Her and her husband warned me about what problems to look for and expect. Well. Cornerstone was a breeze. I kept on expecting something on her list of woah's to come up, but nothing did. The bid was detailed and professional, the staff was helpful and pleasant, the roofers were efficient experts and respectful.

They showed up when they said they would and they got the job done around the raindrops. The cleanup was perfect, I was worried about nails and gutters full of debris but none of that happened. It was so smooth and easy that if it wasn't for the dent in my bank account I'd feel like some good witch somewhere just wiggled her nose and BAM! I had a new roof. About the price: It was very reasonable. If I ever need a new roof on a home again I'll definitely go with Cornerstone.
Jason X.
Nov 20, 2020
Several businesses never followed through. This one not only came and inspected the roof leak, they fixed it for free! A more long-term fix would cost me money, of course. Would highly recommend!
J. M.
Nov 07, 2020
Cornerstone Roofing: I am so impressed, especially of the integrity and follow through. I purchased a 30-year old house with an 11-year old roof provided by Cornerstone Roofing. The warranty was transferable to us as the second owner. When I called Cornerstone Roofing to put the warranty in my name, they immediately found the contract, updated the information, and said that they would of course honor the contract.

They sent an expert out to inspect the roof and he found a couple issues. These issues were promptly fixed per the warranty. Then we discussed the fact that the previous owner on his own created two new roof vents and that two other vents were no longer used. I then hired Cornerstone to redo the homeowner's vents that weren't ventilating quite properly and to close up the two vents not being used.

I can't say enough on how patient Michael Little was with me. I had so many questions and was quite stressed, having purchased a house that had issues, in some cases unsafe (e.g. electrical, gas), created by the previous owners that I needed to fix and pay for. Michael was so professional and again, the word integrity comes to mind foremost. Thank you.
Scott T.
Oct 15, 2020
We had Cornerstone Roofing put on a new roof a couple years ago. They did a great job, finished early, looks good, and have good customer service. We also had a smooth time using their financing partner. The real customer service came when we had a potential issue. We had some water leaking from the heavy rain and wasn't sure if it was from the roof vent. Mike Little connected us with one of their techs, Sonny.

They came out, found the source of the problem, and fixed it. Not only did they fix the one that had the issue, they looked at our other vents and did maintenance on those as well. They did not charge us as I was told this is all part of Cornerstone's customer service. I highly recommend Cornerstone!
Brad M.
Aug 29, 2020
My roof needed to be inspected for damage. My home is three stories, so it's not easy to get to the roof. Cornerstone Roofing were very straightforward, clear, and fair with how they explained what they would charge for doing this inspection given the height of my roof. The person who did the inspection was efficient and seemed extremely knowledgeable.

After the inspection, he said there was no damage to my roof, and nothing needed to be done. They charged be exactly as they had described, and I appreciate that they were straightforward and honest that my roof was fine. Good customer service. The roof inspector came wearing a mask, which I appreciate too.
Jeff Simon
Aug 09, 2020
Cornerstone Roofing is a great business to bring in. My experience stretches 8 years. Here is the story. I recently called back Cornerstone Roofing to inspect my flashing, during the Winter of 2019-20 as it wet hard rain season. I originally replaced my roof covering with a ridge vent end-to-end about 8 years ago. Then, it was a great experience. Why?

I got even-keeled recommendations, suggestions to avoid over-weighting "Angies" ratings, (go to CheckRegister) and as I recall I had some legacy venting issue to work through. To save a buck, I tried to work the venting issue myself. I was hardly qualified - and the project manager saw my struggles. He came in, rescued me and well 8 years later, the project is done and good. So, when I had some moisture and water on the chimney stack interior this past year, I called Cornerstone.

It was a rainy day in January, real wet. Their service guy came out the SAME day. We inspected the chimney and flashing outside and inside. It wasn't the roof or the flashing, it was the brick and crown. In the end Cornerstone roofing service was complementary. So, I covered both chimney stacks with BBQ covers that January and the following summer I followed Cornerstone's recommendation to call another small business (Premier Masonry) - and to refurbished the chimneys. Thank you Cornerstone!
Winona H.
Jul 20, 2020
Very positive experience from quote to completion of my new roof. The Cornerstone Roofing crew made quick work, completing my roof in one day in spite of finding rotten plywood underneath the old roof. Craig, the project manager, was responsive to my questions and any concerns were addressed promptly. Neighbors have already asked about my new roof and I am happy to tell them that Cornerstone Roofing was the company that did the project.
M. G.
Jul 15, 2020
Outstanding company. Price was very fair when compared to three other bids. Workers were phenomenal - no nonsense and worked tirelessly to do the job. Cleanup was also great with followup by owner.
Jennifer B.
Apr 13, 2020
During the midst of COVID19 we discovered our 20 year old roof was leaking. We expected the worst and asked a couple of companies for a bid. Cornerstone was fast to respond. He checked out the problem and gave us a quote of half the price of the other company. Then he offered to check out the rest of the roof. We figured that's where he'd get us.

To our surprise, while he did find another problem we didn't know about, he offered a quick fix as opposed to a new roof that was still cheaper than the other company (who didn't even look at the rest of our roof). And even though we hadn't committed to using Cornerstone, he did a quick patch for free to keep it from getting worse. Job was done quickly at an extremely fair price. We know who we'll be calling when we do need a new roof!
Mimi S.
Jan 17, 2020
Dave came out and did a bid for me for my roof leak. He was honest about what he saw and he's been doing this for a while so I felt like I could trust his advice. He sent me a bid with an offer to do work, but not without also suggesting a solution that I could try first that didn't cost me anything. He then sent me an email and a hard copy of the bid with beautiful photos of everything so I could see the places he was suggesting to complete the work. I will call them again in the future as I know they do quality work, but not unnecessary work.
Dave W.
Apr 11, 2019
A smooth, professional process from start to finish. I contacted several roofers to request bids on a small roofing project. This was for a cottage that had a terribly aging (and leaking) roof. Dave from Cornerstone responded immediately via email and scheduled a time to come out to look at the cottage within a couple of days. I was impressed with the thoroughness of Cornerstone's bid; the quality of the information; and even the presentation itself.

All the bids we received were very close to one another in price, making the choice to go with Cornerstone a slam-dunk. They scheduled a mutually-agreeable time to do the project and their crew came out and knocked the whole job out in one day. The roof looks great and their clean-up was spectacular. Highly recommended!
Arial Buza
Jan 26, 2019
They recently replaced our entire roof. Very professional from the estimating process to the actual work. I got several competitive bids and they were priced similarly, but Cornerstone offered a much more comprehensive warranty. There was an accident during the replacement that led to some small drywall damage in one of our ceilings. We sent a picture to the project manager and that was all we had to do.

Within an hour I was copied on an email to a drywall repair person saying that it needed repair right away and Cornerstone should be billed. It was patched competently in two days. No waiting, no hassle. Mistakes happen, the important thing is how they are addressed. I was very impressed.