Independently Rated Highest in Quality
S i x t e e n t h
Consecutive Year
Originally Earned:
January 2002
We declare that Century Roof and Solar Inc. HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #4
(877) 312-3511

Century Roof and Solar Inc. specializes in installing roofs with a systems approach, paying special attention to ensure all components of a roof and solar system are designed to work together. As an installer of photovoltaic (PV) solar roof systems, the Hayward-based company’s goal is to permanently reduce or eliminate clients’ electric bills.

Owner Tony Diaz has more than 31 years of experience in the roofing industry—he’s factory-certified on many roof and solar systems and is qualified to assemble and build composition, tile, shake, shingle, and PV solar-integrated roof tiles. Mr. Diaz holds the coveted NABCEP certification (North American Board of Certified Energy Practitioners) and is a continued education provider for NABCEP.

In 2007, Century Roof and Solar received an exclusive certification from the Tile Roof Institute to improve national roof tile application. Century is also a Master Elite Certified installer for GAF products and has won the GAF Excellence Award the past seven years in a row. The company invites each client to “enjoy your solar roof on us,” with zero percent interest financing during the first six months of a new roof and/or PV solar system installation. 

Company Philosophy

“Since 1996, we have worked hard to deliver high-quality roofs and/or solar assemblies to all our customers. We believe one roofing/solar project should lead to another through referrals of satisfied customers. Our customers drive our business. We realize how important it is to keep them happy, and we do our best to take care of even the smallest requests. We stand behind every roof and energy system we install.” 

Serving Alameda and Contra Costa Counties including Berkeley, Fremont, Hayward, San Leandro, Oakland, Richmond, Concord, Walnut Creek and Antioch

Roof & Electric Solar Systems
Roof & Electric Solar Repairs
Gutter Installations
Photovoltaic Solar

Full-Service Electrical

DuroLast
Eagle Tile
Eagle Tile
GAF Timberline Roofing
GAF Timberline Roofing
Monier Tile
SolarBlend from SunTech
SolarWorld Solar Panels

Comparative Summary

Tony Diaz, owner of Century Roof and Solar in Hayward, thinks customer satisfaction is what sets his company apart from others in the industry. “We have 100 percent customer satisfaction,” he confirms. “I tell customers, ‘Call every one of our past customers for the last two years, including those we’re currently working with.’ That’s a big reason people...

Frequently Asked Questions

Q: What kind of insurance does Century Roof and Solar carry?
A: "We have general liability insurance with an A15-rated carrier, plus critical coverage endorsements. We also carry commercial auto insurance and workers’ compensation."
Q: When should I get a new roof?
A: "Many customers call us to do an assessment of whether preventive work is necessary. Fixing potential problems before any actual damage is done is a wise thing to do. If you don’t need repairs immediately, a professional roofer can give...
Q: Should I tear off my existing roof?
A: "Generally, yes. Removing the existing roof gives us a chance to assess and abate any damage that’s been done, like from termites or dry rot."

Industry Info

When shopping for a roofing contractor, one of the biggest—and often most neglected—considerations should be the insurance it carries.
“Insurance rates have been rising,” says Tony Diaz, owner of Century Roof and Solar in Hayward, “and many contractors are ‘going bare,’ operating with no insurance at all. California requires home improvement...
Findings based on statistically reliable research from 380 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
98%
n = 380

Diamond Certified Qualification

Based on 380 customer surveys, we declare
Century Roof and Solar Inc.
has passed all rating steps and has earned
The Diamond Certified Award
No. 4
Continuously qualified since January 2002.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

Jeffrey P. Verified Customer Name
"Tony was great to work with and so was Luciano. They were all very helpful and responsive. They answered questions when I had them in a reasonable amount of time."
Research conducted by American Ratings Corporation. Ratings Methodology

Diamond Certified® Video Profile

Company Capabilities Table

Century Roof and Solar Inc.
(877) 312-3511
(510) 784-0421 fax
DCID8882337548

Mon – Fri: 8am – 5pm
Sat: By Appointment

Serving Alameda and Contra Costa Counties including Berkeley, Fremont, Hayward, San Leandro, Oakland, Richmond, Concord, Walnut Creek and Antioch

Tony Diaz, Owner
31
15
GAF Master Elite Roofing Contractor, NABCEP Certified Education Provider, NABCEP Certified Solar PV Installer
721502
Liability Insurance, Workers' Compensation
Solar Energy Industries Association, Western States Roofing Contractors Association
Contract Instructor for Solar Energy International, GAF Master Lead Excellence Award, Modular Life Tile Pentacle Award
1996
Roof & Electric Solar Systems, Roof & Electric Solar Repairs, Gutter Installations, Photovoltaic Solar, Full-Service Electrical
DuroLast, Eagle Tile, GAF Timberline Roofing, Monier Tile, SolarBlend from SunTech, SolarWorld Solar Panels
Residential
10 Years on Workmanship, Manufacturers’ Warranties
Non-Secure - Home Improvement Loans, Through Bener Bank, 6-Month and 12-Month, Same As Cash Program
Alameda Roofing

Photo & Video Gallery

Survey Responses For

Century Roof and Solar Inc.

Century Roof and Solar Inc.: Average 9.4 out of 10 based on 380 unique customer surveys of customer satisfaction.
Jeffrey P. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They put out a good product at a reasonable time, and they're knowledgeable about their subjects, both roofing and solar."

"Tony was great to work with and so was Luciano. They were all very helpful and responsive. They answered questions when I had them in a reasonable amount of time."

Anne L. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Their service is good. The product is good. I really loved that the roof came out very nice. "

"The person who came over was so excellent and explained everything and answered every question. I think his name is Pablo. He was super patient and gave me all the necessary information. The price was the best of all the five companies I interviewed. They were always very good about cleaning up. They didn't have loud music playing. They were very professional."

Hana H. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They did a great job. They have the expertise to do the job and they did it well. They were very expensive. I referred a couple of friends, but they ended up using someone else because of the cost. "

"They did a great job. They had the type of roof I wanted and needed because I have a flat roof. They provided a durable roof and a lifetime guarantee. The people were very nice and very professional. I chose them because of their expertise and the flat roof I have. I go for quality and not quantity, and that's why I chose them. "

Stephanie P. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I thought they were very good and very thorough. Anything I thought needed to be fixed, or any changes that needed to made, they did."

"I liked Century Roof's guarantee and the quality of their products, and they fixed the issue that I had."

Amy M. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Century Roof was easy. It was a great experience, fast and reasonable."

"They delivered on expectations, and I liked that they had samples of materials. I thought they did a really good job."

Jonathan K. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are very knowledgeable, had great customer service and performed high quality work."

"They are good people to work with across the board."

Susan P. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were honest, and their work was very good. I would highly recommend them."

"They said what they were going to do and they did what they said they would do in the contract."

Donna M. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They provided quality service, top-notch service."

"They are good people with good workmanship. They did a good job all the way around."

Sonya S. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They really showed up on time. They came through with what they said they would do. They left everything clean every day. They communicated well. It was great."

"I just felt like they were on the level. It was what they said it would be and what I expected."

Ryan W. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I recommended them."

"I recommended them."

Bob T. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They seemed liked the best roofing company in the area."

"They gave a quick and accurate quote. It seemed to be fair. Even though it took a few months to get the job scheduled, they were prompt and did the work quickly without any trouble."

James L. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were very responsive and easy to work it."

"They kept me abreast on how soon the work would be done, since I told them it was urgent."

Chris H. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were excellent and did quality work. Their prices are slightly high, but you get what you pay for."

"They completed the work in a timely manner with good quality. They did a good job."

Gaail S. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were really easy to work with and thorough."

"They got in, got it done, and got out."

Amy M. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Tony was very warm and professional. He was very knowledgeable about roofing, answered all of my questions, and was very patient. He did a wonderful and thorough job. He even went beyond what he had to do."

"I like that I feel confident that the work Tony did will last a long time. Also, I liked being able to purchase a warranty from him in case something were to go wrong. I was totally satisfied."

Dennis F. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I would say that they do a good job."

"I liked that they did the work so quickly. Everything was great."

Evilio G. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I would say they do very high quality work at a very reasonable price."

"I liked that they started the job when they said they would and completed it on schedule. There was very minimal disruption with our tenant and the roof looked really good. "

John H. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I would say that they provide exemplary service."

"I liked that they were clear, concise, on schedule, and they did everything they had agreed to do."

Michael H. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They do a really good, high quality job."

"I like that their work is of very high quality."

Peter E. Verified Century Roof and Solar Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I would tell people how great and friendly their workers are. They keep the work area so clean and do everything they can to make you feel like they're not there."

"I liked the quality of their work best. It was perfect."