Grate service! This is a late comment, I totally forgot details, but still no issues after 5y. read more

I arranged for six bids from reputable contractors. Cornerstone explained why I needed plywood sheathing atop my 1949 shiplap in order for a CertainTeed roof system to work for 40 years, why ridge vents aren't right for the tiny ridges on hipped roofs. The whole team was stellar in speedily tearing off, rebuilding my roof system and cleaning up completely in a day and a half. I could not be happier with the entire process. read more

We had Cornerstone replace our 18-year old roof that was showing its age and had cracking plastic box vents with a small leak. Mike quoted both to repair and to replace, and we got an honest opinion that replacing was better given the age and possibility for more leaks. We also went with them because their quote was competitive and we liked the Certainteed Presidential TL product they offered. Their crew showed up on time on the agreed upon day and quickly removed the old roof and installed the new one. We love the look of the Presidential TL, it adds an elegance to our house that stands out compared to our neighbors, and we've received many compliments. My only suggestion to Cornerstone is to improve their communication. For example, it was forecast to rain most of the week before our install. Rather than me calling to ask if our install was still on schedule, it would have been nice to get a proactive call from them assuring us of that fact. Also, the install crew was very nice and professional, but on the 2nd day after they were done they just disappeared without a word. I would have appreciated a knock on the door to say they're done and that another guy would stop by next week to do the final cleanup and touch-ups (instead I called to ask if they were truly done and why there were still nails and debris in our yard). Personally I think over-communication to the customer would be preferred with a project of this size. read more

I was highly impressed with the Cornerstone Roofing team from start to finish! I reached out to about 7 different local roofing companies - including Cornerstone - for bids on a full roof replacement project. Big shout-out to Mike Little, our Cornerstone estimator, who provided us with all the details we needed to review multiple quotes and make an informed decision on next steps. I never felt any pressure to choose Cornerstone (unlike with some other roofing companies), but we ultimately went with them because their pricing, scope of work, customer service, and responsiveness over email/phone calls were all exceptional and stood above their competition. They replaced our whole roof, installed some new sheathing, updated a skylight, improved our venting system, and did a magnetic sweep of the property before they left at project completion. The crew worked hard, interacted with us kindly, cleaned up after themselves, and finished the project in 2 days. They were prompt the whole way through! They also checked in with me on a couple occasions to make sure everything was progressing as desired and to give me a run-down of the updated price estimate before they installed new sheathing. Big shout-out to Vicente and his crew, along with Jim and Diego, for all the great work, for keeping the project on track, for communicating so professionally along the way, and for the helpful QC checks at the end of the week. The new roof looks great, and I'd 100% recommend Cornerstone to anyone else considering roof work. They'll be at the top of my list for any future roofing needs, too! read more

They were very responsive and put detail into their estimates, including photos of the roof etc. I felt they were reliable throughout the process, ensuring I knew what to expect. read more

They had great communication. They were very honest. Consider them for future projects.

Please be aware and ask the question are they using plywood or OSB. Using of quality materials is a skip for this company if you are relying on them and not knowing what they use. Very disappointing to end up with OSB instead of a real plywood. read more

Cornerstone Roofing has the best roofing material along with a 50 yr guarantee. The crew was very professional, very competent and did a great job cleaning up after and leaving everything as it was before they started. Cornerstone came from a friends recommendation who use to work with them. Everything he said was correct about them being very competent and reliable. The roof is the highest point in our house and not self serviceable. It's really important we get a quality reliable roof along with a company that backs their workmanship. And they are really nice people to work with. read more

I had used Cornerstone a few years back to re-roof our front porch to address a leak that developed. That experience was positive, so we reached out to get a quote to replace our entire roof as it was reaching the end of its lifespan. My next-door neighbor and I both requested quotes from Cornerstone for our roof replacements. Our estimates were very thorough, detailed, and delivered quickly. My neighbor's brother-in-law works in the construction industry and when asked about Cornerstone, he commented that they have a great reputation and that others in the industry had used them for roofing work. Leading up to the start of construction, the construction manager detailed what to expect during the work, when materials would arrive, and when the work should be completed. The construction crew arrived on time each day and put in a tremendous amount of work. They were professional, courteous, and did meticulous cleanup after the end of the day. They worked so hard that our old roof was removed and the new one replaced in just a day and a half. Our new roof looks amazing, and has numerous upgrades over the original roof. I would highly recommend Cornerstone for your roofing needs. read more

Called to make an appointment for a roof inspection, as our roof is getting on in years, and might need to be replaced. However once I mentioned that it was a low pitch roof (3:12), was told that they specialize in high pitch roofs only. Didn't see that on their website. They recommended I contact Anderson Roofing instead. read more

Cornerstone just finished our shingle roof and I couldn't be more pleased. Fair and transparent pricing, accurate scheduling in very difficult times, and the crew was very professional throughout the process. They were recommended to me by multiple property owners and the job was really well done with great respect for our property: tarps over deck, daily sweeps for trash, always available for questions, etc. Trevor Smith was very quick to answer any questions and make sure I was completely satisfied. Wish I could give them 6 stars! Peter Truce read more

Cornerstone Roofing did an amazing job. They replaced three sections of the roof to solve a leak problem. Everyone at the company kept me informed of the process and timing. The only reminder they needed from me was to send the completed photos. The "On the Roof" crew was wonderful. They waited on site for one whole day hoping the weather would clear, but it never cleared enough to start. The next two days the weather was perfect - amazing for February. The first day a crew of three worked nine hours to have the roof cleared and sealed for the night. Their prep work was better than expected. They had thick plastic sheeting on the ground and plywood up against the garage doors to protect them from anything that might bounce against them. After removing the two skylights they immediately covered the openings. At night they replaced the skylights over the temporary covers. The next day the crew was down to two. They worked for six solid hours to lay the shingles and clean up the area before taking a break. I'm sure they wanted to get the job done before any unexpected rain showers. On both days they did a great job of cleaning both the roof and ground areas. On the workmanship side of the project they were careful and exact. They replaced, sealed, and painted all the plumbing vents and gas furnace chimney. The roof looks great too. Be sure to get an estimate from Cornerstone Roofing if you need a repair or replacement. read more

The crew did a fantastic job replacing our roof. Their bid was very competitive, and the entire process was seamless and efficient. We were so impressed with the quality of their work and their professionalism that we recommended them to our neighbors, who also had a great experience. We're extremely satisfied with our new roof and highly recommend this company. read more

Cornerstone Roofing installed a new roof on our home and did an exceptional job. From the first meeting with the estimator to the ongoing communication with the company about the schedule, everyone was polite, respectful, and on time. Our estimator did not try to upsell us on their products and was thorough when providing us information about our various choices. We had an old cedar shake roof that needed to be removed with underlying plywood decking also needing replacement. When ripping off the old roof, one of our first floor screens ripped and the company quickly and seamlessly honored the pricing for its replacement. The customer service was exceptional. The roofers were careful to protect our plants and shrubs and did a fine job cleaning up each day. Our new roof looks great--we purchased the Presidential Shake TL (an asphalt composite) with an exceptional warranty. We are very pleased and happy that we used Cornerstone. read more

Cornerstone Roofing - Roofing Near Me - Snohomish, Washington

My experience with Cornerstone Roofing was an absolute disaster, and not only would I never recommend them, I would actively try to persuade friends and family to never hire this company for any roofing work. My experience has been awful and I wish this company had never done any roofing on our house. If I could give them zero stars I would. In my view, they were evasive and not willing to stand by their work. Beware. read more

After researching Cornerstone Roofing (CSR) it seems I am not the only one they ignore. They seem to have the attitude that if they ignore a problem it will just go away. I suggest researchiing them well before you hire them. My delivery and read receipts from my email verify they received and read my messages. read more

Cornerstone just finished our conversion from cedar shake to comp. During the day our house was definitely a construction site but every evening all debris was cleaned up. The whole experience from the initial sales visit, demo, install, final quality check and the admin team was excellent. Even a couple surprise reduced costs on our skylights on the final invoice. Profesional, courteous and thorough is my best description. Thier pricing was also very competitive. read more

Cornerstone was exceptional with our roof replacement. We had obtained quotes from several roofing companies, and liked Cornerstone the best. Their salesperson Dave was very knowledgeable and transparent. He took care to outline the pros and cons of repair vs replacement and made sure didn't feel rushed into any decision. This company has been around a long time, and it's apparent they take the long view with maintaining client trust. Cornerstone offered a variety of roof shingles from different leading companies, which is something not every roof company does. This company came recommended by a friend. Dave was also one of the few salespeople we met who willingly climbed on the roof and into the attic to gauge the work. He recommended a molding company to fix an attic issue, and we're glad that was discovered and handled. Since they're a popular company, we had to wait a month or so for the work which was acceptable to us, and in the meantime they tarped parts of the roof where there was a leak. Craig led the installation of the new roof. Due to icy January conditions, a small area of material got wet and they immediately replaced it to give us peace of mind. They replaced our gutter and attic vents. There was wood under the roof that had to be replaced as well, which they did. The result was a good-looking roof and peace of mind! The company provided referrals to solar panel companies they'd worked with, and we hired one to install panels on our new roof! read more

We had a leak in our roof and called the day after Christmas. Honestly, we didn't have high expectations as it's difficult to find someone to do a roof repair as most companies aren't interested in small jobs, and it being a holiday week we expected to have a difficult time finding someone. However, less than an hour after we called a person showed up (sorry I don't remember his name ) and assessed the situation. He said he would return around 2:00 to attempt to fix the leak as it was forecasted to stop raining at that time. Well, at 1:50 he showed up and got right to work. He spent about an hour working, finished the job, and cleaned. Communication with the office was great, and the price was very reasonable. Overall we had a great experience with Cornerstone. read more

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! read more

Cornerstone Roofing - Great job and clean up was impeccable. - Roofing Near Me - Snohomish, Washington

Cornerstone Roofing did our roof, they did a great job! We had numerous roofing contractors out to give bids and these guys price was in the ballpark, competitive PLUS they were willing to do the work that needed to be done and replace decking and make repairs as needed. The company has a warantee you can purchase for a good price in addition to there's a warrantee that came with our shinigles- and we actually got it in the mail. I will recommend them to others, so glad we found them! It's nice to deal with HONEST people! Dave the estimator was super great. He was a guy to trust and the price came in within the range it should have according to the estimate. read more

Cornerstone roofing is exceptional and exceeded all my expectations! I was in need of repairs to stop a leak and Mike squeezed in a visit, inspected my roof, and sealed up some of the cracks temporarily to hold me over during intermittent rains this spring. Then they were able to schedule Lenny out quick to perform the roof repairs and he was thorough and efficient and restored the compromised areas of my roof good as new. Excellent service and communication with the utmost professionalism from everyone at Cornerstone from start to finish! read more

Mike came to look over our roof to see if we needed to have it replaced. He was very professional and provided me a lot of good information about the roof and its condition. When time comes, I would hire CSR for a replacement. No pressure at all. read more

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. read more

Cornerstone Roofing - New roof! - Roofing Near Me - Snohomish, Washington

"I would highly recommend this company. In the quote process, they were the only service who used drones to thoroughly inspect our roof. Again, they were the only company who looked inside our crawl space of the roof to warn us of potential issues and maybe extra expense. Thankfully there was none. Dave the estimator, was not pushy and took time to educate us. They have done at least 8 houses in our street and all neighbors gave them high praises. This was my final decision breaker. They did warn me that often when they take off a roof there might be some boarding that is water damaged, but they would not know until they took off the roof. They bought 5 pieces of plywood just in case, to the job site on the day. The extra cost for that was minimal, and we did not have the job held up while they searched for hardware stores. This is a very experienced crowd that has a team behind it, each of whom does their individual job in an exemplary fashion. The roofers themselves had been together for ear and were the hardest workers. The place was left in a spotless condition." read more

This was a smooth operation from start to finish. Dave, our estimator, laid out exactly what was going to happen and made excellent suggestions as to materials. The Install crew showed attention to detail and were nice guys. The price was fair. I'm very satisfied read more

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. read more

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. read more

We had 10 buildings in our Condo HOA needing roofs. We received 6 bids and chose Cornerstone as they were the most professional, helpful and accommodating. Cost was also favorable and absolute, unlike other bids, that had extras not included. We were always informed of what to expect, everyone in the company was committed and followed up on every call, and need We had. Work was impeccable, clean up was as well and all condo owners were very satisfied. This is a rare company these days, where their word and their work was better than any other contractors of any type. If there were higher ratings than 5 stars, this company earned them! read more

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. read more

Great experience with Cornerstone. They were professional, responsive, delivered on-time and had awesome customer service. From the quote process to final inspection, each individual we worked with was amazing. They helped us with our warranty claim as well. We would highly recommend them for any re-roofing project. Thanks for making the experience so seamless. read more

Had a great experience with corner stone roofing. The roof replacement work was well coordinated from initial contact to completion and they did a great job. read more

Cornerstone offers a very professional manner from preparing the quote to completing the project everything goes smoothly as planned. The after-service inspection and follow-up are also excellent. They are not the lowest among all the quotes but I'm glad that I picked them. A very well-organized, professional, efficient, and reliable company. Highly recommended. read more

I am a WA licensed home inspector. I am not a great fan of roofing contractors because of the amount of poor workmanship and inferior/unsuitable materials I consistently find on inspections. Then I had the privilege of inspecting Cornerstone Roofing's work on a Shoreline condo. I haven't seen that commitment to quality since 2018. It is for this reason that I write this review. Cornerstone Roofing is truly professional in their workmanship and materials. If only the other 90% of roofing contractors would display the same commitment, my job would be much easier and my clients, much happier. Cornerstone Roofing is only one of two roofing contractors I can, with a clear conscience, heartily recommend. Way to go, Cornerstone! read more

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! read more

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. read more

I got three quotes. Cornerstone was very competitive. What set them apart, for me, was James seemed to have a better understanding of the reroof process and specifically roof venting than his competitors. Install was seamless and the roof looks great. read more

I've used cornerstone 3 more times over the past few years and they are worth more than a 5 star review. I've used them in some commercial applications, and they've proven to give their same highly-detailed, high-quality care to everyone they do business with. As inevitably happens in business, issues come up. Whether it was through no fault of their own, or if they made an honest mistake, they've always been team players and have stood behind their work and honored their word. Just need to find 100 more contractors like them!! read more

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. read more

Responsive, prompt, and more thorough than I could have asked for. We were looking into buying the home we were renting. They had quoted the same house for a new roof 5 years prior, unknown to me, so they shared that recommendation on our first visit, which helped validate the condition and needs very early on. I believe James was our contact's name--absolutely fantastic. The the woman who set up the appointment was incredibly informative and warmly professional. We decided not to buy; but if I ever need a roof I'll be calling Cornerstone. read more