what we do
Our CEO, Willie Johnson
Doing It On Top - Johnson's Roofing Service realizes the importance of you choosing a qualified roofing company.
We install top-quality roofing for both residential and commercial customers and we have 35 years of experience. You are just as likely to see our trucks outside a large commercial construction project, as they are to be seen in front of your neighbor’s home. Founded on the principle that the highest standards are achieved by utilizing quality workmanship and materials, we are committed to quality and safety. Our customers have made us the roofing contractor of choice in Los Angeles, Orange, Riverside, San Bernardino, and Ventura counties.
Contractors State License Board – License #636995
Registered Contractor - 
CERTIFICATIONS & RATINGS
- Custom-Bilt Metals
- EverGuard TPO Single-Ply
- GAF Commercial
- GAF Residential
- GenFlex
- Gerard Metals
- WDG White Silicone Coating
- Westcoat Specialty
- A+ Better Business Bureau Rating
Why Us
We Provide FREE Roofing Estimates
A FREE roof estimate is our norm. Whether deciding on a roof repair, roof replacement, or a new roof, getting a free roof estimate from our professional roofing company should be your first step. We pride ourselves on providing you with a FREE roofing estimation tailored to fit your roofing needs and --- more importantly --- your budget.
No Roof Is Too Small Or Too Big For Us
Making the right choice for your residential, commercial, or industrial roofing contractor is essential to your peace of mind. We ensure that our work is done to your satisfaction, completed in a timely manner, and invoiced at a fair price. Our company, Doing It On Top - Johnsons Roofing Svc, has been meeting these requirements for over 25 years.
Don’t Call the Others, Call the Brothers
Seasons change and as time passes, your building's exterior will be affected by the elements. This is especially true for the roof. We are a Southern California based roofing contractor and we know exactly what your roof needs. Our licensed, bonded, and insured company has provided high quality services for over 25 years.
The Right Tools, The Right Choice
Let us help you understand what you're getting into (or under) so you can maximize the return on your roofing investment. There's a range of roofing choices available to you, each with their own attributes allowing you to tailor your choice based on whats most important to you --- be it budget, longevity, style, or a combination of all three. Continue Reading
We Don’t Proclaim To Be The Best … We Just Outdo The Rest And In Most Cases For Less
As a leader in our field with excellent employees, our company belongs to the Better Business Bureau, many roofing and business associations, and we've won many awards. We outdo the rest because we want to be the best with a fair price so training and dedication of our employees is unsurpassed. Look no further for your roofing contractor! 
We Can Solve All Of Your Roofing Needs
There is no such thing as a maintenance-free roof, regardless of the length of your warranty. Your roof is the building component most critical to the smooth operation of your home or building. Since potential losses resulting from a failed roof system are staggering, we promise comprehensive and lasting solutions to solve all of your roofing needs.
Let Us Help You Choose The Best Roof For Your Needs
Whether your needs are focused on finding just the right roof for your building or home or the perfect color for an upcoming architectural or multi-family project, Doing It On Top - Johnsons Roofing Svc is a smart choice! Let us help you choose the best roof for your needs.
testimonials
"Your company did repair work on the roof of my home in West Covina and I was more than pleased with your work. I'm writing to tell you that in 15 years of construction and real estate sales, I've never received a report performed in such a professional and informed manner. I'll recommend you highly to my neighbors and friends Continue Reading...- Joe Qiáng / West Covina, California
"You recently performed a roof inspection on one of my listings in Culver City. At the time of the inspection the buyers, the sellers, and both of the agents were present. The gentleman, who did the inspection, Mike, was very helpful in reviewing his report as well as giving the buyers answers to all of their questions. Mike did a Continue Reading...- Darius Chambers / Los Angeles, California
"We had been wanting to replace our shake shingle (fire unsafe) roof, but we were overwhelmed with the choices and the whole process. We met with different roofers but it was hard to get a sense of what was involved until we met with you from Doing It On Top with Johnsons Roofing. You walked us through what was involved, Continue Reading...- Carlos and Sheila Jones / San Bernardino, California
"Thank you so much for making our first re-roofing job a pleasurable and painless experience. The roof looks great. We appreciate the fact that your workman took the time each and everyday to clean up the surroundings. They were prompt without any delays. I have had neighbors inquiring, so hopefully, you will receive more business in the future. I will Continue Reading...- LaTasha and Bob Chapman / Long Beach, California
"I just had my roof redone by Mr. Johnson from Doing it on Top and it was a brilliant job. I can see why they’re so busy. I’ve dealt with a lot of contractors in my 16 years owning this house and these have been the only guys who came when they were supposed to, finished when they were supposed Continue Reading...- Lewis Tate / Compton, California
“Thanks Mr. Johnson. As a General Contractor I have had many roofers over the years and you are one of the best. Thanks to you, your crew, and your staff.”...- Marv Switzer / Santa Monica, California