4.3 
308 *The Angi rating for Roofing companies in Discovery Bay, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
*The HomeAdvisor rating for Roofing companies in Discovery Bay, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
Last update on March 03, 2026
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Short version: reliable, clean, and professional. Max helped us with a flat roof replacement in Belmont, and the finished roof looks great."
+458
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
Free estimates
Warranties offered
Credit card accepted
"We had our roof replaced with GAF shingles by American Cool Roofing and the whole process was excellent. The crew was professional, efficient, and finished the job on time. The roof looks amazing and the quality of the work is very noticeable. Hailey provided outstanding customer service and kept us informed throughout the entire project. Highly recommend them!"
+57
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Emergency services offered
"Replacing a roof is a big job. my roof was part TPO and part asphalt shingle. I like the honesty and integrity of this company. Also the quality of the materials and installation. I feel confident that my roof was done right."
+30
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Emergency services offered
"The professionalism and attention to detail are evident in every aspect of their work. Our roof not only looks fantastic but also provides the assurance of quality and durability. It’s clear that Lifetime Roofing & Renovation takes pride in their craftsmanship, and it truly shows in the results. Highly recommended for anyone looking to upgrade their roofing with confidence!”"
+31
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"I hired them twice. First to add gutters to my she shed. Took a while to schedule because they are very busy, but I wasn't in a hurry and they came when scheduled and did a great job. The second was to replace a section of my roof that was leaking and remove a stove and replace with a sun tunnel. Again, some delays in scheduling, but it was close to the holidays. The work was very good though a little pricey - but what isn't these days."
+7
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 1997
Free estimates
Emergency services offered
""Hey there, just wanted to share my experience with Platinum Roofing & Retro-Fit.They did a solid job on our metal roof. The team was friendly and made sure we knew what was going on every step of the way. Our roof's looking sharp now! Also, when it started raining unexpectedly, they came out and tarped the roof to avoid any extra damage. If you're looking for roof work, they're worth reaching out to. Thanks, boys!"
+37
Serving Discovery Bay, CA and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
With over 10 years of experience, Donnelly LLC is who you need to take care of your home or business. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!
+18
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"overall the roof cleaning looks great except for the camellias on the top of the roof the tile isa little bit dirty. it's not greg fault is mine because I fail to prune the camellias on the top of the roof. Thank you Mr Greg Farmer for doing a fantastic job in my house. God bless your family."
+5
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"I couldn't be happier with my decision to choose Titanium Roof Innovations Inc. for my recent asphalt shingles roof replacement. From start to finish, the entire team was professional, efficient, and courteous. They communicated clearly throughout the entire process and always kept me informed of their progress. The quality of workmanship was outstanding, and I'm confident that my new roof will last for years to come. I highly recommend Titanium Roof Innovations Inc. for anyone in need of roofing services."
Serving Discovery Bay, CA and surrounding areas
Approved (Corporate)
In business since 2022
Free estimates
Credit card accepted
"Great team to have working on your roof!"
+16
From average costs to expert advice, get all the answers you need to get your job done.
A new roof improves curb appeal, increases home value and keeps your living space protected from the elements. Learn about average roof replacement costs to set your budget.
The average cost of roof repair for U.S. homeowners averages between $386 and $1,875. Learn what factors can affect roof repair costs.
Wondering about the cost to tarp a roof after a large storm or before a major roof renovation? We'll break it down by size, style, and scenario.
All of the parts of your roof work together to protect your home. Learn the anatomy of a roof and how each part functions.
Roof leaks are an emergency, so knowing who can tarp your roof quickly and correctly can save you from major water damage if you ever experience a leak.
Using a roof replacement checklist ensures you get the key tasks accomplished.
