Diamond Ridge Roofing Systems logoApproved Pro
This pro has maintained an average of 4.5+ star throughout their time with Angi.
Approved Pro

Diamond Ridge Roofing Systems

Inspection - Roofing - For Business, Sealant for Roof - Apply- For Business, Asphalt Shingle Roofing - Install or Replace - For Business,
This pro has maintained an average of 4.5+ star throughout their time with Angi.

About us

Diamond Ridge Roofing Systems is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Business highlights

Se habla espanol
Emergency services offered
17 years of experience

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.636 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
89%
4
0%
3
6%
2
0%
1
6%

Filter reviews by service

Showing 1-25 of 36 reviews
Meghan P.
May 2025
5.0
Asphalt Shingle Roofing - Install or Replace
We just had our roof and solar reinstalled by Diamond Ridge Roofing Systems, and the experience was fantastic. A huge shoutout to our project manager, Marcello, who didn?t just dictate how things would be done?he actively involved us in the process. He took our input and preferences into account, and we found a great balance that met both our functional and aesthetic goals. We really appreciate his collaborative approach and would definitely recommend asking for him specifically. Overall, a great experience!

Victor L.
Apr 2025
5.0
Asphalt Shingle Roofing - Install or Replace
$3,000,000
I really appreciated working with Diamond Ridge to replace my roof. They gave me a lot of confidence that they would do a great job and would take care of my needs. Marcelo was a wonderful project manager. When he came to look at my property and assess my roofing issues, he took his time to understand my concerns and make sure the issues I had were from the roof and not another source. If I have friends getting their roofs replaced, I will definitely recommend Diamond Ridge and Marcelo for the job.

Josephine C.
Apr 2025
5.0
Flat, Foam, or Single Ply Roofing - Install or Replace
$3,000,000
After a neighbor's home insurance was cancelled due to roof issues, we proactively reached out to Diamond Ridge Roofing System. Our four townhomes share a single flat roof, so coordination was key. Marcelo came out promptly, conducted a drone and in-person inspection, and provided clear, detailed quotes. He spoke with each homeowner to ensure everyone's concerns were addressed. From start to finish, the entire team was professional, courteous, and responsive. When rain and wind hit during construction, they came out in the middle of the night to tarp the roof—above and beyond service. Communication was timely, issues were addressed immediately, and the entire project went smoothly. Marcelo even followed up after completion to make sure we were satisfied. Their attention to detail remained consistent from Day 1 to the final payment. Highly recommend Marcelo and Diamond Ridge Roofing System for anyone looking for reliable and high-quality roofing work.

Andrew G.
Apr 2025
5.0
Flat, Foam, or Single Ply Roofing - Install or Replace
$2,100,000
roof looks really clean. great work. Marcelo was communicative and guided us every step of the way. A+

Rebeca C.
Apr 2025
5.0
Asphalt Shingle Roofing - Install or Replace
I was looking for a company to replace my roof and received several bids, but none of them made me feel confident or comfortable until Diamond Ridge showed up at my home. From the moment they arrived, I felt I could trust them. I truly loved their service and highly recommend them to anyone in need of roofing work. Definitely worth more than 5 stars!

Girlie J.
Apr 2025
5.0
Asphalt Shingle Roofing - Install or Replace
After struggling with two different roofing companies in the past and feeling exhausted from trying to resolve the issue, I finally found Diamond Ridge Roofing and Amilton. From the very first interaction, I felt relieved by their knowledge, honesty, and professionalism. They not only fixed all the problems but also delivered outstanding work that exceeded my expectations. My roof now looks flawless, and I couldn?t be happier! I highly recommend Diamond Ridge Roofing to anyone looking for quality and reliability. Thank you so much for helping me with my home?s roof!

Armine M.
Apr 2025
5.0
Flat, Foam or Single Ply Roofing Repair
I don’t usually write reviews, but I feel compelled to share my positive experience with Diamond Ridge Roofing Systems. I recently hired them for a roof report, and I couldn’t be more impressed with their professionalism and customer service. From the moment I reached out, they provided a timely quote, and more importantly, they went above and beyond in assisting me with an insurance-related repair. Navigating the insurance process can be stressful, but Diamond Ridge made it so much easier. They not only helped me understand the process, but their team also worked directly with my insurance company to ensure everything went smoothly. Thanks to their efforts, I was able to save money and avoid unnecessary hassle. A special thank you to my Project Manager, Felipe, for being so knowledgeable and supportive throughout the entire process. His expertise truly made a difference, and I felt confident every step of the way. If you need roofing services, I highly recommend Diamond Ridge Roofi

Jason K.
Apr 2025
5.0
Flat, Foam, or Single Ply Roofing - Install or Replace
$3,000,000
They were very attentive, answered my questions well and got the job done. No complaints!

Georgia K.
Mar 2025
1.0
Inspection - Roofing
Overloaded my deck with 4000lbs of concrete and then told us afterwards that the room below the deck was no longer structurally safe and could collapse. They then did not show for weeks to fix it. The whole thing was estimated to take 4 days and instead it has been 2 months and is still incomplete. They also cemented in our gutters and got cement on our windows. Lastly, it was incredibly difficult to get ahold of anyone and they often did not show up.

Jason C.
Mar 2025
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
Got started next day. Everything went fine, no issues.

Blanche W.
Dec 2024
5.0
Asphalt Shingle Roofing - Install or Replace - For Business
Alex lopes was my project manager and did a fantastic job, Also crew was very good working and cleaning up afterwards. Would recommend there work. Thanks

Karen C.
Dec 2024
5.0
Seamless Metal Gutters - Install
$288,800
Diamond Ridge Roofing Systems did a great job. They finished installing the gutters on time and hauled away the old gutters.

Shane S.
Nov 2024
5.0
Flat, Foam or Single Ply Roofing Repair
Yes, I recommend this pro
Great company fast and quality work.

William S.
Aug 2024
5.0
Asphalt Shingle Roofing - Install or Replace
Yes, I recommend this pro
Diamond Ridge did a spectacular job! They took off my severely damaged synthetic slate roof, repaired all of the rotting plywood, added another layer of plywood on top (I wanted to stiffen my roof because we live less than a mile from a major fault line), removed and reinstalled my 33 solar panels, and were the lowest of four bids. They were incredibly easy to deal with and super responsive to my concerns. They even covered my pool with plastic to keep any demolition of the slate roof from falling into the water. I can't say enough about the quality of their work!

Martin J.
Jul 2024
2.5
Traditional Tile Roofing Repair
I would cautiously recommend Diamond Ridge Roofing System for roofing project. They are reasonably priced. The roof work is good; however, the gutter and downspout work leaves lots to be desire. They have had two different teams come out to fix issues as they arise and I'm still having issues when it rains and getting them to come and correct the problems has been challenging. The project was completed 5 months ago and there still leaks with the gutters. With rainy season just beginning, I am worried the leaky gutters will ruin the plywood and create a bigger problem for them to fix and a huge inconvenience for me and family; not to mention property damage if not corrected timely.

Michael B.
Apr 2024
5.0
Sealant for Roof - Apply
Yes, I recommend this pro
Marcelo, Rodolfo and Mario where the best.

Patrick S.
Apr 2024
5.0
Yes, I recommend this pro
Probably the best contractors Iâ ve worked with, period. Absolutely professional, the work is beautiful, and Felipe Cecol and Denio Madeiras were both a delight to deal with, personally. Anything we didnâ t understand, they took the time to explain both the process/materials theyâ d use, and the logic as to why these were their recommendations. I have been screwed over by contractors before, and this was the opposite experience. Even after the work was complete, when I questioned positioning of a certain downspout, Felipe came out to discuss it with me and once I understood the rationale, I knew they were right. I donâ t expect to need roofers again any time soon, but if I did; Iâ d hire them again tomorrow.

Jacob V.
Apr 2024
1.0
Asphalt Shingle Roofing - Install or Replace
This is mostly a sales front company with a C-39 contractor and a revolving door of HIS (home improvement sales) people. They will high bid and subcontract work to a subcontractor of their choice. We unfortunately were misled as they told us they have their own staff of knowledgeable roofers. They don't (at least not for us) as they didn't follow code and cut our ridge beam in half. They didn't supervise the work. They also misapplied much of the roofing system that renders this home questionably warrantable. They are friendly during the sale, but fall short of delivering good workmanship and quality service. I suggest you ensure any contract with them doesn't force you into accepting a subcontractor. You can find many reputable direct for hire roofers.

Ling J.
Apr 2024
5.0
Yes, I recommend this pro
We are impressed by the efficiency and professionalism of Marceloâ s team. Beautiful new roof, well done!

PT G.
Apr 2024
5.0
Asphalt Shingle Roofing - Install or Replace
Yes, I recommend this pro
a

Ronald L.
Feb 2024
5.0
Metal Roofing - Repair
Yes, I recommend this pro
They rock

BARBARA T.
Jan 2024
3.0
Traditional Tile Roofing Repair
Over priced and disappointing experience.

Georgia M.
Jan 2024
5.0
Wood Shake or Composite Roofing - Repair
Yes, I recommend this pro
10/10

Gary L.
Dec 2023
4.5
Traditional Tile Roofing Repair
Yes, I recommend this pro
The project manager answered all my questions and showed their license and insurance in written document. My advice to homeowners is 1.) read the suggestions Angi gave you before you hire someone and clarify all doubts in your mind as to the contractors' qualification 2.) see all qualification documents in writing 3.) can talk to the project manager frankly and clearly at anytime when the project is in progress.and question answered.

Richard D.
Dec 2023
5.0
Asphalt Shingle Roofing - Install or Replace
Yes, I recommend this pro
$3,100,000
Service very good and quick Andre very knowledgeable and good presenter
Showing 1-25 of 36

Licensing

Licensed*

Trade License Number

1109532

Trade License Locale

CA

Trade License Expiration

08/31/2025

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Diamond Ridge Roofing Systems is currently rated 4.6 overall out of 5.
Monday: 8:00 AM - 5:00 PM Tuesday: 8:00 AM - 5:00 PM Wednesday: 8:00 AM - 5:00 PM Thursday: 8:00 AM - 5:00 PM Friday: 8:00 AM - 5:00 PM Saturday: 8:00 AM - 12:00 PM Sunday: Closed
Diamond Ridge Roofing Systems accepts the following forms of payment: CreditCard
Yes, Diamond Ridge Roofing Systems offers free project estimates.
No, Diamond Ridge Roofing Systems does not offer eco-friendly accreditations.
No, Diamond Ridge Roofing Systems does not offer a senior discount.
Yes, Diamond Ridge Roofing Systems offers emergency services.
Yes, Diamond Ridge Roofing Systems offers warranties.

Contact Information

123 Spyglass Hill Rd, San Jose, CA 95127

Service Hours

Sunday:Closed
Monday:8:00 AM - 5:00 PM
Tuesday:8:00 AM - 5:00 PM
Wednesday:8:00 AM - 5:00 PM
Thursday:8:00 AM - 5:00 PM
Friday:8:00 AM - 5:00 PM
Saturday:8:00 AM - 12:00 PM
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