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Nationwide Sun

Nationwide Sun is a company that prides itself in acute attention to detail. Our CEO is a Master Engineer who oversees every project personally. We handle everything from design, installation, completion, and warranty repair. Nationwide Sun is the only company known in California with all the following licensure and capability under one person and company:

A Engineering, B General, C10 Electrical, C27 Commercial Landscaping, C39 Roofing, HAZ-ASB-MLD-UST.

We are not just a Solar Company and focus on understanding the math and science behind each Energy Management System we design and build.

Nationwide employs no sales staff; no one is paid commissions. This allows everyone to focus on what matters the most… the efficacy of the design and performance benefits for the customer. Our clients often voice how refreshing it is to work with a science and math-based company as opposed to a sales-based company.

At Nationwide Sun, we focus on doing the best job possible, being honest and transparent. We do not focus on profits, but rather, we focus on building the best product at a competitive price. It is for this reason that we receive an average of 3 to 5 referrals from our customers for whom we have already performed services, some going back over 15 years or more!

Nationwide Sun has installed and maintains over 3,400 systems and has not received a single bad review or complaint. We focus on customer satisfaction and look forward to focusing on you, your family, and your project needs.
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In business for nearly 20 years, we have completed over 3,400 solar installations all over California. Nationwide Sun is a full-fledged construction company, with licenses for engineering, roofing, electrical, construction, and of course, solar and battery storage!

Our recipe for success will always be: use tier one equipment, employ honest personnel, and do the job right. All of our work is done in-house, no subcontractors ever. We know the quality of work we do and therefore we can offer solid warranty support, as well as, have access to the best financing options in the industry.
Year Established
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Reasons Why You Should Work With Us
  1. We pride ourselves in the pre- and post-installation customer experience.

  2. Our team has in-house electricians, electrical engineers, and installation teams.

  3. Our company has an extremely high referral rating and retains a 5-star review average.

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We are not just a Solar Company. We focus on understanding the math and science behind each Energy Management System we design and build. We perform Roofing Repairs and Replacements, Tree-Trimming, and all things Electrical such as Electrical Vehicle Charging Circuits, Main Panel Upgrades, Electrical Appliance Circuits and MORE! We hold the following California Licenses: A Engineering B General C10 Electrical C27 Commercial Landscaping C39 Roofing HAZMAT ASBESTOS MOLD UNDERGROUND STORAGE TANK

Services Offered

  • Installation
  • Financing
  • Manufacturing
  • Architecture
  • Energy Auditing
  • Construction
  • Plumbing
  • Roofing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance
  • Community Solar

Our Design Team is continuously working out every detail to best provide accuracy in all of our designs. Here at Nationwide Sun, we have no sales associates and no advertising. We believe in math and science, and work with each potential customer one-on-one to provide an accurate understanding of possible design options. The pre- and post-installation experience is the key to our success, and yours. We are excited to review your potential design options and go over the many possibilities for producing the most effective Energy Management System for your home and family.

Workmanship Warranty

10-Year Workmanship Warranty on the installation, parts and labor.


CSLB LIC # 1005757
A Engineering, B General Contractor, C10 Electrical, C27 Commercial Landscape, C39 Roofing, HAZMAT-ASBESTOS-MOLD-UNDERGROUND STORAGE TANK


Nautilus Ins Co. #17370 Great Divide Insurance Co. #25224 Financial Pacific Insurance Co. #31453


Enphase, Solar Edge, LG, Canadian Solar, Panasonic, Generac, SPAN, Tesla

Industry Certifications

Manufacturer Certifications

  • Authorized Solar Installer
  • Sungage Financial Certified Partner

What Customers Are Saying

29 reviews
Average Rating 29 review(s)
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I needed to have my solar inverter replaced and I had contacted several companies for estimates. When I contacted Nationwide Sun they had a technician come to my house to evaluate my solar system at no charge. After the technician left I was contacted the next day with a solution for my concerns. I had read other reviews and they are spot on. I had the repairs done done in a timely fashion at the price I was quoted. They have a great team. I am a retired Porsche Premier Technician where excellence is expected. They earned my recommendation!

Posted by chris9137 on May 17, 2024
Top Quality People & Equipment at a Great Price

Someone once told me, when making big investments in your home, it's not just the cost, but who is doing the work. That has been proven to be true many times over, and yet that is only part of the reason why I chose Nationwide Sun for investing in roof and solar for my home. You will not find better people. Not once did I talk to a sales person, because they do not have them. I talked to experts in various areas of the project, as well as the president of the company, who came to my home personally multiple times. I do a lot of research and I ask a lot of questions. This company has one of the longest records of any, and the record is spotless in almost 20 years of business, not a hint of a complaint. They use top quality components and materials. They told me that they would not be the lowest cost option, but they beat the quotes from companies that use the same level of components. They offer the longest and best warranty, and they stand behind it. During the early phase of my project, one of their clients had tree limb crash through their roof during heavy storms and they jumped into action, on a weekend, to remove the branch and patch the roof until they could repair it permanently after the storm passed. No hidden charges, if something goes wrong, they will come and address it. That is who I want doing the work on my home. Good people, doing good work. Supportive with great, responsive communication. This company is diversified and will be around for many years to come (unlike many solar companies who folded this past year). They did great work at a great price, and they will be there if I need any assistance. That is why I chose Nationwide Sun and why I recommend them.

Posted by berj_amir on Apr 25, 2024
Happy Customer

I am very happy with Nation wide. I was exploring various vendors and they were quick to respond. They elucidated me the steps in the entire process. They gave the best pricing as well. Once I was in contract, they updated me on every step. They did good job in installation, aiming for better exposure to Sun. They made sure the city inspection smooth. Overall another happy customer.

Posted by fd97003 on Jan 19, 2024
The most trusted contractor I've ever used

From the Owner of the company to the installers to the schedulers, Nationwide is hands down the best vendor I've ever used. They even sat around in their cars on the street waiting for PGE inspectors to come for PTO to ensure there were no issues...packing a brown bag lunch knowing they could be there for hours. This sounds like a trivial "impressed moment" but that is the level of detail that Frank and his team spend time on. The best part is they don't sub out any work, so they OWN everything they do and stand behind it. I have 20 other examples of little things that would have gone wrong with another outfit, but Nationwide makes EVERYTHING easy and reliable. We had them do other things outside of just solar installation and they always do right by us, from quality to pricing. No need to consider ANYONE else.

Posted by Pkwatra22 on Dec 27, 2023
Contented Customer

I chose Nationwide Sun after comparing several contractors with the help of energysage. I wanted a company that was local and experienced. They were not the cheapest, nor the most expensive. Everyone I dealt with was professional and knowledgeable, from the design team to the installers. I am happy with our decision to let Nationwide Sun handle our installation and delighted with our utility bill.

Posted by mandcbryant on Dec 23, 2023
Professional Installers with good followup

We picked Nationwide sun and had a good solar installation experience. They are very prompt, transparent and professional. There were some hiccups with inspections but they were able to help us navigate it. The quality of the equipment is good for the time we have used them

Posted by tuhinkanti on Oct 10, 2023



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