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
"I am very pleased with the work Lifetime Roofing & Renovation, Inc. provided for me. I had contacted several roofing companies prior to contacting Lifetime Roofing.I was given an estimate affordable to my cost, the detail of the work and a date of completion. I was contacted by Dylan, who was overseeing the project and if I had any questions as the roof was being completed, I HAD NONE! I cannot express how pleased I am with my roof, I absolutely love it. I would highly recommend Lifetime Roofing & Renovation, Inc. to my family and friends. Thank you Lifetime Roofing for a job well done."
+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
"He was efficient and got roof leak repaired.."
+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
"Cleaned all gutters, downspouts and algae from roof as well as roof valleys. Excellent work and left everything cleaned. Price was very fair and work was excellent."
+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
In business since 2020
Free estimates
Credit card accepted
"Frontline did an outstanding job on the roof maintence!"
+11
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.
Building a roof is a serious but rewarding project. If you're up to the task, use this step-by-step guide to learn how to build a roof without the help of a contractor.
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.
