San Diego County's Trusted Roofing professionals

Family Owned Since 1935.
Stability. Quality. Reliability. On Budget. On Time.
You can count on us for all your professional roofing needs!

Residential Roofs and Repairs San Diego County


Specializing in new roofs, re-roofs, HOA re-roofs and roof repair. We have a reputation for dependability and quality, earned over 55,000 roofs in eight decades.

Commercial Roofing Systems San Diego County


Trusted roofing company for numerous high-profile and landmark buildings in San Diego County. (Coronado’s Bluewater Boathouse Seafood Grill above)

Dow Solar Shingles San Diego County


Exclusive installer for DOW Powerhouse Solar Shingles in San Diego County. They compliment the look of your home AND save you money. Visit Dow Powerhouse to learn more.

We are Proud to Have Helped this Military Family

How to choose a roofing contractor 

All roofing contractors are not alike. Your roof is an important part of your home, both structurally and aesthetically, but you don't buy one everyday. Before you spend your money, spend time learning how to evaluate roofing contractors. Here are some guidelines to help you from the National Roofing Contractors Association (NRCA).

Are They Licensed and Insured?

Ensure the contractor is licensed, bonded and fully insured for liability and workers’ compensation to protect you from any liability arising from unforeseen accidents that might occur on your property.

Do They Have a Proven Track Record?

Check their completed projects. Get client references. Inquire about their project supervision and quality control procedures. Find out which roofing manufacturers have certified them as preferred installers. Choose a company committed to worker safety and education. 

Do They Offer a Quality Roof at a Fair Price?

Price is only one of the criteria for selecting a roofing contractor. Professionalism, experience and quality workmanship also should weigh heavily in your decision. Keep a healthy skepticism about the lowest bid. If it sounds too good to be true, it probably is. 

Don’t trust your home to just anyone.
Be a knowledgeable consumer and insist on working with a professional roofing contractor. 

 CONTACT US FOR A FREE PROFESSIONAL QUOTE or assessment of your roofing needs. We look forward to serving you!

It Began in the Heart of a Courageous Young Man

Our Founder and Visionary,
James Phillips (J.P.) Witherow

J.P. was born and raised in Pennsylvania and moved to San Diego in the late 1920's, to take advantage of the city’s growing opportunities. Working as a salesperson for a local painting and roofing contractor, J.P.'s entrepreurial spirit kicked in when his employer didn't offer a pay raise. So he quit.

J.P. Witherow Roofing Company
was born in 1935 

With startup capital provided by a loan from his father-in-law on January 1, 1935, J.P. took the courageous leap of starting his own company and operated it until he passed away in 1986. It has continued to flourish in the expanding San  Diego community for 80 years.

J.P.'s son, Richard Witherow, proudly continues leading the family business

With the same entreprenerial spirit as his father, Richard has led the further expansion of the company. After 47 years in Old Town on Morena Boulevard, he relocated the business in 2010 to its newly designed and built facility in Lakeside. It’s beautiful and should serve us and our customers well for the next 80 years. Stop by and see us! 

Approved installer and applicator for the
finest name brand materials in the industry

Most roof systems require special application expertise and craftsmanship
to achieve lasting quality and long term warranties. 
Johns Manville
Sika Sarnafil
Owens Corning
Dow Powerhouse Solar
Malarkey Roofing Products
Eagle Roofing Products
Carlisle and Lapolla Roof Coatings

Celebrating 80 Years
with a new website!

Our website is currently in the design lab. It will have all kinds of information to help you understand all the roofing options available to you – including solar – the factors that affect price, warranties, maintenance, repair and much more. Stay tuned!

some of our projects

We here at the J.P. Witherow Roofing Company are extremely proud to be an integral part of the San Diego County construction industry. From thousands and thousands of residential projects to commercial projects encompassing high-profile and landmark buildings, convention and civic centers, private and public schools, military bases including Camp Pendleton, Seal Beach, 29 Palms and more, we've built a tremendous legacy. 

We would love to be your chosen roofing contractor, too!

Join more than 55,000 satisfied customers...since 1935!

Here, Mr. Witherow is presenting the roof warranty to the Wells Family...

The Historic “Brookes House”

We put a new roof on the historic "Brookes House" built in 1890. Designer Series Aged Cedar, Owens Corning, Nice!
(November 25, 2014)

Did you know...Dow Powerhouse Solar Shingles are the only solar product approved for use on historic homes and buildings? That’s because they are actually part of the roof system, much like a skylight is. Check out Dow Solar.

The Del Mar Racetrack Grandstand

Some of our high-profile and landmark building projects in San Diego County include:

  • Museum of Contemporary Art
  • Thornton Hospital
  • Viejas and Valley View Casinos
  • Cathedral and Canyon Crest High Schools
  • The VA Hospital of La Jolla

A Recent DOW Powerhouse Solar Shingles Install in Laguna Beach

Dow Powerhouse Solar Shingles are both a roofing solution and a solar-power-generation system. Unlike conventional “bolt-on” solar systems, the POWERHOUSE Solar Shingle has an additional role of protecting your home like a composite roofing shingle.

We are proud to be the exclusive installer for all of San Diego County. Contact us to learn more about Powerhouse.