Cert-A-Roof
Company Overview
Book your LeakFREE® roof inspection today! Boasting 35 years in the industry, we rank as the top roof inspection service in SoCal. Our team consists of NRCIA certified inspectors. Our expertise lies in providing 2-year LeakFREE® roof certifications. Receive photo-centric reports within 24 hours. We provide a full range of roofing services.
In 1980, Les Watrous secured a California General Contractors License 388630 under the name, The Watrous Group.
In the early 80s, as home inspectors were scarce, people frequently contacted The Watrous Group for inspections, leading Les to become highly knowledgeable about home inspections.
With the evolution of the home inspection industry in the early 90s, many insurance claims against inspectors stemmed from leaking roofs, leading inspectors to advise obtaining roof inspections.
Recognizing an opportunity, Les established Cert-A-Roof® in 1993 to inspect and certify roofs as leak-free, and he trademarked the phrase LeakFREE® Roof Certification.
With the real estate, banking, and insurance industries acknowledging the value of roof inspections and certifications, the demand for our services increased.
The Watrous Group, doing business as Cert-A-Roof, retaining the same contractor's license number and phone number for 35 years.
Now, we offer FAA registered drone roof inspections. Les hails from Connecticut, with a lineage of home builders who constructed from the ground up. He was taught the importance of doing things correctly and still believes in that principle.
In 1978, he moved to California with his parents due to his father's health issues requiring a warmer climate.
His comprehensive understanding of home structure, including foundation, framing, electrical, plumbing, roofing, and quality workmanship, positioned him as a highly desirable contractor.
In 1993, he founded Cert-A-Roof to help buyers better understand the roofs they were considering purchasing.
Following the 1994 earthquake, he began reconstructing damaged homes. He took on the role of a consumer advocate, collaborating with insurance companies to achieve the best settlements. He wrote a book named Top Dollar Property Claims, which the Los Angeles Times recognized as one of the Top Ten Books of the Year for real estate.
Business Services
- Roof inspection
- New roof installation
- Roof repair
- Roof replacement
- Reroofing
Business Location & Hours
Mon: | 8:00 AM - 6:00 PM |
Tue: | 8:00 AM - 6:00 PM |
Wed: | 8:00 AM - 6:00 PM |
Thu: | 8:00 AM - 6:00 PM |
Fri: | 8:00 AM - 6:00 PM |
Sat: | 8:00 AM - 4:00 PM |
Sun: | Closed |
Recommended Customer Reviews

I was super stressed about calling for roof repairs. Well all that stressing out was in vain because Paul came to the rescue.
We both got on the roof and he explained in detail what needed to be done. He even pointed out other non roof issues that I should address like the crack in my chimney. I am on a tight budget and he did all the work within my budget. On the day of repair, his crewman was respectful and cleaned up after the job.
Do not hesitate calling Cert-A-Roof. Paul, finding you was a Godsend!

I had a home in escrow held up waiting for a roof certification. I called numerous roofers and couldn't get the work done in a timely manner. I finally found Cert-a-roof. Wish I had called them first, they're professional, easy to work with and prompt. Paul gave me a quote, did the inspection a few days later, informed me clearly on the status of the roof and completed the job quickly.

If you are a person that values quality work and the peace of mind that accompanies it, Les and Paul are your guys.
In addition to our roof needing replacement, we needed lots of periphery repairs, facia boards replaced, an antique roof top ac removed, rafter tails, etc. The whole works!
This might sound odd, but what I really appreciated about Les, was during the whole re-roofing, they were totally unintrusive. The work was done quickly, but not rushed. The crew cleaned up every day before leaving. When I had questions or concerns, Les was right there to help.
Hopefully, that helps paint the picture of a quality, professional, personable roofing company.
Thank you Les and Paul for everything!

Paul arrived right on time and was very knowledgeable and professional. He did a very thorough inspection and provided a very detailed report which included photos. Their Yelp voucher deal helped save me some money as well. I would highly recommend their company to my friends and neighbors.

My mother recently used this company's services for a new roof. She was very pleased with the service provided by Les Watrous. He was very punctual, honest, and provided answers to any questions my mother had. He was easy to get in touch with when questions arose and she really appreciated it. He definitely is knowledgeable when it comes to roofing. His crew worked very fast and efficient and the job was done in a reasonable time considering unforeseen issues that were discovered. Her neighbors have complimented her on the work that was done. He and his crew did a wonderful job and we would highly recommend his roofing services to anyone interested in repairs, inspections, or new roof installations!

After having a regular inspector for our home I hired Bill Hogue of Cert-A-Roof to get an expert opinion on the roof.
With his detailed report and pictures we were able to negotiate $7,000 off the price of the home for roof repairs.
I highly recommend using Cert-A-Roof!

Just had our roof replaced by the Cert a Roof crew. What a fantastic experience! Les
performed the inspection and explained every detail of where we had problems and what the risks were. The crew arrived on time, and went about their work in a highly professional manner. They even cleaned the work area daily. Wow, amazing, ethical, full service company. No issues, no complaints. The Waltrous family provides exceptional, personal service. Very happy with the entire experience.

Just had our roof replaced by the Cert a Roof crew. What a fantastic experience! Paul did the inspection and explained every detail of where we had problems and what the risks were. Even got me up on the roof to give me the best understanding. We made the decision to replace our existing roof and so glad we went with this company. It ended up raining 2 hours after they removed our existing shingles, that was NOT in the forecast. I didn't evan have time to freak out because the crew was back up on the roof to lay down a tarp before the first drop fell. At danger to themselves, but they saved us from damage. Wow, amazing, ethical, full service company. No issues, no complaints. The Waltrous family provides exceptional, personal service. Very happy with the entire experience.

I have been a Realtor over 10 years, and have used many Roof Inspectors through out the years. Since I worked with Bill Hogue at Cert- A- Roof, I will only use him for all of my buyers and sellers needs. Bill is GREAT always on time, very thorough in his inspection . Always gets me the reports fast. I highly recommend .

Les did a roof inspection of the house we just purchased. He was polite, on time and was instrumental in getting us a significant reduction in the price of our house. Highly recommended!