My wife and I recently worked with Diamond Ridge to replace our roof, with Marcelo as our project manager. We've worked with countless contractors on many home projects over the years (HVAC, water heater, exterior painting, etc) and our experience working with this company was about as close to perfect as we've ever had. From the initial consultation to the execution and the final tying of loose ends, Marcelo always made us feel like he had our best interests in mind... like he's working on his own home. His bid was competitive with the other bids we got, but what really set him apart was his endless patience answering all our questions, his attention to detail even during that first visit, and his positive attitude. It's clear that he loves what he does, and it shows in the results. His team members all seemed very professional and efficient, and they worked together well as a cohesive and happy team. We loved all the in-progress photos and drone footage Marcelo would send us throughout the project. It went a long way toward making us feel at ease and engaged the whole time. Shortly after we thought we were done and concluded the final payment of the schedule, we noticed a few minor flaws. Marcelo still made sure every single one of our concerns were addressed, which we really appreciated. Obviously we don't expect to replace our roof again anytime soon, but we would definitely recommend him with no hesitation to anyone needing roof work. We really felt he went above and beyond to make sure we were satisfied with the work. Marcelo's a member of our team now. He's our roof specialist. read more

I cannot say enough great things about Diamond Ridge Roofing System and especially Marcelo Candido. After meeting with three other roofing companies, I was honestly stressed, each one tried to convince me that I needed to replace my entire roof over a leak caused by a single broken drain. One contractor even had me believing my roof could cave in at any moment. Then I met Marcelo, and everything changed. From the start, he was incredibly professional, transparent, and trustworthy. Instead of pushing unnecessary work, he clearly explained that he doesn't believe in persuading customers to pay for repairs they don't actually need. That alone immediately set him apart. He used a drone to thoroughly inspect and video my entire roof, walking me through exactly what he saw and pointing out the specific areas that needed repair. After hearing vague explanations from others, this level of clarity and honesty was refreshing. Not only was his approach honest, but his pricing was also very reasonable, actually less expensive than most of the other quotes I received. Marcelo personally came out and stayed on-site with his crew to ensure everything was done right and met my expectations. After the repair, they even used my water hose to test the work and make sure there were no more leaks coming into my home. That level of care and attention to detail meant everything to me. A week later, I had a follow-up question and texted Marcelo. Instead of just replying with a quick answer, he came by the very next day to personally address my concern. That kind of responsiveness and commitment is rare. Because of this experience, I hired him on the spot, and I have zero regrets. While I don't need a full roof replacement right now, when the time comes, I will absolutely go with Diamond Ridge Roofing System and will specifically request Marcelo as my Project Manager. If you're looking for honesty, quality work, fair pricing, and someone who truly stands behind what they do, Marcelo is your guy. read more

After having our roof replaced last year we wanted to use this company for new rain gutters. They never responded to our request and there was no way to leave a voicemail on the main phone number. Sorry to say this was a disappointing experience. read more

Diamond Ridge installed a new roof for us last year. They completed the project but there were a few bumps along the way and small debris found sporadically on the ground. I'm now rating on another matter. A few months ago, a tree fell on our roof and I called Diamond Ridge to come give me a quote to fix the small damage. There were only 3 small spots that needed repair which included replacing the skylight. Field Supervisor Renato Mendes came and took a picture of the damage. I asked him what happened to two of the project managers that worked on our roof replacement project last year and he said they left. It didn't work out. Not good. A few weeks after he came, I emailed him, called their office several times and left a message for him to call me with a quote. I even texted him. I tried everything over several weeks as I wanted to give him an opportunity to fix our roof since they were the original roofer. I got no response, nada, zilch, nothing. You would think after I spent a fortune on a new roof (over $50K) that they would at least help me or give me a quote or at least say something - our project too small? Anything, just respond with something!!! That is the reason for the 1 star rating which I take seriously and don't like to do. I just think it's the worst type of customer service. So beware. Needless to say, I contacted 2 other companies. One did respond and has repaired the damage of which I am happy with. read more

Leo and his team were fantastic from start to finish. Communication was clear and responsive from the initial estimate through scheduling, and they even showed up early on a Saturday morning to get the repair done. We have a newer metal roof that needed some flashing work--including repairs, and sealing in a few areas. Compared to other estimates we received, Jose really stood out. He walked us through multiple options and rational approaches without any pressure or upselling, which we really appreciated. The crew was efficient and professional. One of the standout touches was that Jose put together a summary video showing before-and-after footage and key steps throughout the repair process--super helpful and honestly just impressive. (was especially useful to see some of the steps that were eventually covered up by the final flashing materials) Would absolutely recommend Leo and his team read more

Marcello and his team were amazing, thorough, professional, responsive, courteous and efficient. Our roof was done in 5 hours! The team was respectful of our home. Marcello knows how to take care of his customers and close out the job. It's always hard to find trustworthy and honest contractors and I'm so glad we did. Price did not break the bank and was reasonable. We are beyond happy with our new roof! Thank you for an amazing service! -Gina and Eric read more

Diamond Ridge Roofing Systems - New Roof! - Roofing Near Me - San Jose, California

I would highly recommend Diamond Roofing Systems - 5/5 stars! Alex Lopes was our project manager and we were very impressed with his professionalism, communication and progress updates from the initial estimate to project completion. The cost of the project was competitive and he was able to work within our budget. We had to do a complete re-roof for our flat roof and Alex was very knowledgable about the process; he pulled the permit with the city and managed the project in a timely manner. He went above and beyond with all of our requests, no matter how big or small and took progress photos/videos before/during/after. We appreciated his attention to detail to ensure the roof was completed in excellent condition. After speaking with so many other roofing companies for initial estimates, I am glad we decided to do business with Alex and Diamond Roofing Systems. read more

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I had them re-roof a triplex for me in Oakland. Got several quotes from different vendors and found Jose and his team Communicative, Friendly, Professional, competent, and they had competitive pricing. read more

Joao and his crew were very professional and efficient. I would reccomend them for all roofing needs. He went above and beyond in offering recommendations and was honest if they were necessary. Some companies will tell you what you need without explaining the benefits and costs. Thanks again! read more

Diamond Ridge Roofing Systems - Roofing Near Me - San Jose, California

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We were looking for a second opinion on our new house and they were extremely informative and transparent. Definitely knew a lot about what they were talking about and were very professional. Will be sure to reach out when we need work done. read more

Jose from Diamond Ridge Roofing came out to our property after last week's rainstorm to check a leak, and we had a great experience. He provided a detailed quote and shared a lot of helpful information about the roofing issues we're dealing with. He was friendly, patient, and very knowledgeable--took the time to explain everything clearly without rushing. Highly recommend Diamond Ridge Roofing if you need honest and professional roofing service! read more

We hired this company to replace our roof and gutters in 2024, and the overall experience has been deeply disappointing. During the recent rains, a section of the newly installed gutter began leaking significantly. We recorded videos documenting the exact location of the leak and contacted the company multiple times, but received no response whatsoever. The complete lack of acknowledgment or follow‑up is unacceptable, especially for work completed so recently. It is important to note that we raised concerns about this same area shortly after the installation. The water flow already appeared abnormal at that time. The company inspected it and told us everything was fine. Our previous gutter system had never exhibited this issue. Now, the problem has worsened dramatically, indicating that something in the installation has failed. In addition to the unresolved leak, several workmanship and cleanup issues became evident after the project. Numerous nails were left scattered around our property, posing safety risks and reflecting poor jobsite management. Cleanup is a basic expectation for any roofing contractor, and it was clearly not handled properly. The crew also left multiple nail holes on our exterior wall. Their attempt to patch these holes was substandard -- uneven, visibly noticeable, and ultimately left the wall in worse condition than before. For a project of this scale and cost, the lack of care and attention to detail is extremely concerning. Given the unresponsiveness, the deterioration of the gutter installation, the unsafe cleanup, and the poor-quality wall repairs, we cannot recommend this company. We would not hire them again. read more

Diamond Ridge Roofing Systems. well and enjoying newly completed roofing. provide excellent service, and greatly appreciate .experience with their work.satisfied with TPO roof quality for manufacture home warranty service, I am homeowner find reliable roofing services with Diamond Ridge Roofing company with 18 months no interest fee. Thank you for Diamond Ridge Roofing Systems to install & soft our problem on time for my mom roof leak problem. read more

Joao was very responsive, professional, personable and a great communicator. My roof was leaking and they couldn't get started till the rain stopped so he had his crew come and tarp it. Once the rain stopped the job was done sooner than expected. I would definitely recommend Joao and his crew! read more

We had our waterproofing redone and several damaged wood boards replaced, and the entire experience was excellent from start to finish. Leo kept me updated throughout the whole process with photos and videos, which made everything very transparent and easy to follow. He patiently explained every step in detail, and even during the initial free quote, he spent a lot of time inspecting the roof and walking me through the work that needed to be done. He used a DJI drone to check every part of the roof, which really showed how professional and thorough he is. The crew's workmanship was also outstanding. They worked efficiently and did a very clean and solid job. Overall, I'm extremely satisfied with the service and would highly recommend this company. I felt completely at ease and confident throughout the entire project!Thank you Leo. read more

This is my second review for Diamond Ridge Roofing, my first review was based on my quote/estimate experience. Our roof was so outdated and it needed a full replacement before we hit the rain season. After interviewed with more than 12 different roofing companies, we finally decided to go with Diamond Ridge Roofing for our roof replacement project. Andre Moura (Our project manager) was able to start the job as soon as we got the permit within a week, originally I was told the job would take up about 4-5 days but it ended up they were able to finish everything in just 2.5 days, the longest time was waiting for the inspector to finalize the work. Andre would send pictures and videos to provide the updates in a daily basis. We love the drone videos and pictures and it shows us in a very professional way. Diamond Ridge has exceeded my expectation, not only just because of the exceptional customer service we received from Andre Moura, his roofing team, the owner Jose and also Fred from QA, the person who assist to get our permit was able to get it done quickly. The quality of work and materials, efficiency, warranty, thorough explanation of each steps and transparent progress are what we were looking for, not to mention the financing options. Like everyone said this is one of the biggest investment for your home, and you would want to choose the right company to do so. Andre and his team were able to provide and deliver the professional services we were looking for. I highly recommend Diamond Ridge Roofing to anyone who needs any roofing services. Thank you so much again Andre and the owner Jose. We really appreciated your help with this project. Thank you. read more

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Our roof was about 30 years old and it was time to redo it and the gutters. Everything about working with Diamond Ridge was great! We got 4 offers before deciding. We loved Sam our project manager and everyone else we touched base with along the way. Very quickly, we have our beautiful high quality new roof and gutters with long warranties. Of the 4 estimates, 1 was a higher but the others were in the same ballpark for 50 year materials. read more

Diamond Ridge Roofing Systems - Roofing Near Me - San Jose, California

Excellent service from start to finish and a good price relative to other quotes. Marcelo maga Ged the job very efficiently, with great communication. I recommend and will use Diamond for my next roofing job. read more

Ask for Nicholas, their estimator and coordinator. He was wonderful and very easy to work with. They were on time, cleaned up every day front and back, kept me apprised of details and finished job earlier. Next day I have received aerial shots of my finished roof from every angle with full update from Nicholas. I knew exactly what to expect and full details and progress. Easiest project ever. Highly recommend this company. read more

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Joao did an execellent job! I quoted couple roof companies, the other roofer just simply ran a drone and give a quote. Joao went on the roof and into the attic and checked everything thoroughly. He also provided various options and helped me pick one. The crew also did a great job! The whole process is very smooth. Joao came several times to make sure the progress going well, and coordinated with Fremont city to get permit done quickly. I will definitely recommend them. read more

I worked with this company to replace my roof at the end of 2023 and have had leaks for the 2.5 years since. The walls of my bathroom, bedrooms, and living room were wet to the touch. Jose, Renato, and the rest of team have done an absolutely appalling job. Every time there was leak, there was poor communication follow up and even worse patch up job. Unfortunately, due to the persistent leaks, I ended up with severe water damage, mold, and dry rot across several sections of my home On top of all of that, they have not refunded me for the initial roof payment which was ~$24k. I have been chasing Jose and team for 4 months at this point, and for the several weeks, Jose has ghosted me. Now I have to redo the whole roof, remediate the mold, redo my walls and flooring, etc and all in, I will have to spend ~$200k Jose has behaved very unprofessionally considering the extent of damage their poor work caused my home. The absolute minimum they should have done is refund the cost of the roof. Strongly suggest people stay away from this company. read more

Alex Lopes and his crew did an excellent job in replacing my roof and insulation recently! My house had an old tile roof without plywood, and very old insulation. We were also bothered with wild animals in the attic coming from vents and the open roof. Alex provided a quote which was initially beyond my budget. Alex was able to reduce the quote to reasonably low. The whole project took about 1 week. Alex actively oversaw the progress and provided me daily updates. They are very professional, responsible, and diligent! Alex also spotted a few extra places with the house that were better to be fixed, including the missing chimney cap and opening vents. Although these were not in the original scope of the project, Alex ordered meshes and the cap from Home Depot and the crew installed them at free labor cost. After the roof replacement and these issues fixes, I never heard wild activity in the attic. Overall, I think Alex and the crew strongly exceeded my expectation! I strongly recommend Diamond Ridge Roofing System for roofing projects. read more

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Had a 20x20 section of my roof looked at and repaired in middle October 2024. There were evidence of rot along the bordering ridge lines which Diamond Ridge took care of. Not the cheapest but definitely complete and thorough. End of project review, Joao Mendes of Diamond Ridge went over all the other little things along the rest of my roof like capping the very tops of all the ridges, cleaning and resealing any cracking stucco along water flow around the base of my chimney stack, replacing any other cracked tiles if found. Middle November 2024, we had a "bomb cyclone" go through and the repaired space held up well with no issues. read more

Diamond Ridge Roofing Systems - Finished new underlay and ridge with retiling - Roofing Near Me - San Jose, California

Incredibly fast, very knowledgeable, was great to explain and show photos as examples and received a quote same day with extensive description of what needed to be done. thank you for you excellent customer service. read more

This is just an update . So far my roof isn't leaking but I'm very disappointed in their customer service. Far as I can tell, there isn't any. I've sent 3 emails and they haven't even sent an automated response. If this is how they treat customers with a warranty, I worry my roof might not be as well done as I thought. read more

Our roof leaked Jan 2025 and contacted Diamond Ridge to fix the issue. They replaced the underlayment of our roof because it was about 20 years old and worn out from the builder. Builder used cheap materials as always. They came and replace all the underlayment but ran into many issues afterwards such as our solar system bird nest protection mesh was never replaced back from its original state, plus they broke our side entry wood gate which they did fix and repainted. Workers left nails and scrapped on our drive ways which they cleanup after we complaint. Then, recently we found our attic furnace exhaust pipes were cut during the project and recently fixed by them after leaving them behind for a year. They did a good job with the follow up work at no cost to us, except for the bird next protection mesh. read more

Do not recommend this business. The job done, warranty does not cover anything. I have roof resurface and attic research by them. But found new rodent proof, contact them multiple times, they simply ignore me. read more

My positive impression of Diamond Ridge began with Rodrigo, the project mgr, who gave the most complete and professional estimate I've ever had. He went up on the roof (the other estimators did not) and checked the entire roof. He found another spot that was damaged but not leaking yet, and a lot of moss growing. He described the newer materials they would use and each step of the work including power washing off the moss. He was very thorough, stopped by regularly and kept me informed of the progress. The Field Supervisor, Denio, also came out to check on the work and ensure that I didn't have any issues or questions. I was so impressed by their care and quality workmanship that I used them again to remove black mold that had developed from the roof leak. I'm leaving a separate review on that exemplary team. It's been a month since the work was completed and the roof repairs have survived many days of rain and wind. I highly recommend Diamond Ridge Roofing for your roof project. read more

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At the beginning of May 2025, I scheduled six appointments with roofing companies for estimates. Three companies gave me a higher estimate, and two gave me a lower estimate. Although I do not believe Diamond Ridge provides the highest quality materials and service, I came to an agreement with Project Manager, Marcelo, for a total of $25,000.00. Employees showed up at my home on a Saturday to begin the work. I must say that all the workers were excellent, I have no complaints about them. The Project Manager, Regional Project Manager and a person who described himself as the right-hand man of the owner, were different. Their main concern was telling me about how great they were. The workers removed the roof and to everyone's surprise the roof did not have plywood, something that should have been discovered during the inspection process. At the point my roof was off, so I was stuck with agreeing to an additional $7,600.00 increase, something that I was not prepared to spend. There is no reason for an estimate to be $7,600.00 higher than agreed. The company ordered the plywood and by five o'clock the plywood was installed on the roof. Marcelo indicated that they would be back on Monday to continue the work. As soon as they left, my wife and I noticed that the weather app was showing chances of rain for the next day. We figured they were professionals and should know better. Sure enough, Sunday morning we woke up to a rain forest inside my home. Leaks in the bathroom, garage, heater, and a big one in the dining room. There were inches of water inside my home. I called Marcelo and within a couple of hours his crew came to tarp 80% of the roof. They did not tarp the garage and sure enough, later that day more rain came making a bigger mess inside the garage. On Monday when the work resumed my wife insisted on having someone look at the attic because she did not want any mold to develop later. One of the company's employees checked the attic and took a video for review. Looking back, we should have ordered an independent assessment of the attic. According to their assessment the only damage was in the dining area. They ended up replacing a 4' by 8' sheetrock, texturing the area and painting. I was not happy with the job. I informed Marcelo that I was not pleased with the job his company did in trying to repair the dining room ceiling area. Marcelo stated they would hire an independent company to repair the area. I was told by the Regional Project Manager that they were going to hire an independent company, and they were not going to go with the highest bid but somewhere in the middle. Again, looking back I should have hired my own company to fix the issues caused by the rain. In the meantime, the work on the roof was completed. I had to call Marcelo back to fix a portion of the roof that was not finished properly. Again, a professional company should have noticed the problem. When the work was completed, Marcelo wanted to charge an additional $1,000.00 for additional wood that was used on the roof. I told him I was not paying anymore and that they should consider themselves lucky, that I did not seek legal advice/action regarding the issues caused by the rain, not to mention the stress we endured. The company they hired to do the job, ended up re-doing the entire ceiling and painting it. It was a good effort but unfortunately not to my satisfaction. There were no follow ups from anyone regarding the work that was done. My son and I spent several weeks cleaning debris that was left behind. We spent one entire day cleaning the garage and another day putting back decoration lights that were removed from the side of the house and not put back. Unfortunately, it was not over, on January 28, 2026, I received a letter from the Law Offices of Mark A. Kirkorsky, stating that the company that provided the supplies had retained their services for non-payment and that I was named as a person involved. The invoice mailed was for $7,568.39. I immediately called Marcelo and after several attempts, he finally answered the phone. I told him about the letter; he told me that he would contact their accounting office, and he wanted me to text him a photo of the letter and invoice, which I did. I waited the rest of the day for an acknowledgement from Marcelo that he had received my text. The following day I waited all day and still no acknowledgement. At around 5:00 pm, I texted Marcelo asking him if he had received my text. His response started with the words "Like I told you yesterday". I am 62 years old, not five years old. All I was looking for was an acknowledgement not a lecture. In summary Diamond Ridge was too expensve, their estimate was way off, their attention to detal was poor.. read more

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Diamond Ridge Roofing Systems Kudos to Alex Lopes, Project Manager, Steve Lee, Project Manager/Foreman in charge of the actual physical project along with all the workers. From the first meeting with Alex he was very thorough in his assessment and explained each aspect of the job in detail. He was very complete with his evaluation from checking the attic space to checking the current rooftop tiles. Alex pushed me to determine if I fully understood what I was asking of the job and I most certainly pushed him so he fully understood that I had thought about it for sometime and knew exactly what I wanted. Steve, well, there was no request I asked for that he did not find a way to make it happen even better than I had hoped for. The workers not only took the pains to do the job, but to do the job very carefully, completely and in it's entirety to my satisfaction. Everyone, from Alex to Steve to the owners of the company and all the workmen are some of the most courteous of contractors I have encountered during my many projects through the years. This roofing project was one that definitely pushed everyone outside the box, from painting the roofing tile, to installing a different type of corner edge, to changing out the large screws on the gutters for smaller ones and most definitely finding a metal piece to hide an imperfection right in the center of my roof walkway. A huge thank you to each of you and much future success in the days ahead! Take good care and many blessings, Vanessa Harris read more

Diamond Ridge Roofing Systems - Painted tiles - Roofing Near Me - San Jose, California

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We needed to have my Aunt roof repaired and I reached out to Yelp for help! We got several consultations, however Diamond Ridge Roofing was by far the best! My initial call them I was able to speak with a rep and then the Owner to get my questions answered prior to anyone coming out to the home (wow)! Renato (Project Manager) came out and gave a very thorough consultation. We did have 2 other consultants from other companies as well but we decided to go with Diamond Ridge Roofing. In less than 3 weeks my Aunt roof has been repaired with a guarantee for 15 years! Jose, Renato, Rick, Leo & the rep I first spoke with over the phone (I can't remember her name) all took great care of us and our concerns! If you or anyone you know need roofing, call Diamond Ridge Roofing and you will be in good hands! read more

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The crew installed a plastic semi-transparent roof over a deck which was a non-standard job that many roofers refused to do due to leak concerns. It turned out that they know what they're talking about and they delivered on their solution. They came back quickly to fix initial small leaks after which the roof is perfect. They also offered a good price. Definitely recommended! read more

I thought they did a great job. Reasonable price. Professional estimate. Good and . Follow up visit.

My review is long overdue! For anyone looking for roofing needs, Andre Moura is your guy!! My parents were looking to replace their roof and we reached out to several companies on Yelp. Everyone seemed really great, but Andre from Diamond Ridge outshone his competitors! Not only does Diamond Ridge have fantastic reviews, competitive pricing, and beautiful work, but they have Andre Moura making sure that the project is going smoothly and hitting every milestone. Andre keeps you updated every step of the way, with photos and videos from his drone to keep everything transparent. That really puts the customer at ease! He made professional suggestions without being pushy AT ALL and BOY were we glad that he did--otherwise we wouldn't have known we needed to replace the insulation so badly in the attic (and it was the most economical time to do it along with the roof rather than at a later time, saving us money). The project was only about a week from start to finish, and my goodness!! What a huge difference it makes in comfort!! My parents are SO happy, the roof looks incredible, we won't have to worry about this for the next 5 decades, and we always have Andre in our contacts in case we ever have any future roofing needs. Our neighbor immediately signed with Andre to do his roof after seeing ours get done, and another relative is preparing to reach out as well. We highly recommend Andre and Diamond Ridge. You'll have an awesome experience from start to finish, and a shiny new roof that you'll enjoy for years to come. Thanks Andre and team! read more

Jake was quite knowledgeable, helpful and easy to work with. Right on time and explained everything in professional manner.

We had our roof replaced by Diamond Ridge roofing. Our project manager was Jeff Alves did a fantastic job coordinating the replacement. Our project had many delays caused by our HOA, the structure of our roof and ordering our required light weight tiles. We had multiple dealings with our HOA, we needed a structural engineer required by the city because we replaced wood shingles with HOA required tiles. All parts of this project were handled by Jeff without having me be involved with all the different aspects and delays. Jeff always kept me informed and involved with all the decision making. It was pleasure having an honest caring representative of Diamond Ridge. read more

jeff and team did a fantastic job on my roof. they were patient and waited for tesla to remove the solar panels. then they finished the roof work in just 3-days time. they only did partial, and did a great job matching with the rest of the roof. they replaced the materials with top notch brands. after the job was done, there was minor damage on the gutter area where they put their ladder onto, but they came back and fixed it right away. these guys are very professional and prompt. the price for parts and labor was very reasonable, and they have an awesome warranty package. highly recommended and will go back to them for any and all roof maintenance work. read more

I met Alex at Diamond Ridge Roofing who quoted our roof and eventually won our business to replace our roof and gutters. We made many change requests and updated material midway and long delay on our part to get started. Alex and crew met our needs every time. They also connected us with a painter who did great work. read more

If we could give Diamond Ridge Roofing 10 stars, we would! After a frustrating experience with a previous roofing company that cost us thousands of dollars without ever solving the problem, we found Alex and the team at Diamond Ridge, and what a difference! They took the time to walk us through the materials, explain why each choice mattered, and outline exactly what our roof needed. Beyond the technical knowledge, they genuinely understood how worn down we were after dealing with a leak for over a year, and made every effort to get started just three days after we signed the contract. We couldn't be happier with our new roof or the care they put into the whole experience. read more

They did a good job in replacing our old roof, adding gutters etc. But there were a couple of issues. 1. There were many nails around the house which they should have cleaned. 2. Our water pipe was damaged causing a small leak. This was close to where they had the ladder 3. They were supposed to send the warranty documents within a month. It has been 3 months. I called them but no response for over a week. It's 3.5 stars actually... read more