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The Best Solar Company

We help people make
smart energy decisions.

Sun First Solar provides the most efficient, customized energy systems in the San Francisco Bay Area. Whether you're looking for solar companies in San Jose or Marin. We separate ourselves from other solar companies in the Bay area with our belief in a consultative approach and are dedicated to improving the environment and our community. Our teams in the Bay area deliver the finest customer service from start to finish regardless of size or scope.

What we do


Sun First Solar offers the highest efficiency and best-looking systems for your home. As the best solar company, we use the most innovative technology and provide the best warranty in the USA.


Sun First has helped all kinds of businesses — from small family-run companies to large corporations — produce their own energy, cut operating expenses, and achieve environmental sustainability.

Pool Heating

Let the sun heat your pool and eliminate your energy bills. Sustainability and energy efficiency starts with you. A solar heater can extend your swimming time and save on heating costs.

We make going solar easy

From design and installation through permits, approvals, rebates and financing, Sun First Solar handles Bay Area solar projects from start to finish. Sun First Solar is proud to offer you the hands-on experience and knowledge gained from nearly three decades of innovative solar system design and installations. We love solar and welcome the opportunity to custom-design a solar system for you.

Experience Matters

Over the years we have built strong partnerships with the most innovative companies in the solar industry. Many of them are local companies here in Northern California. As the best solar company, we have exclusive access and pricing to the top products on the market reserved for very select dealers. Sun First Solar can offer a wide range of options for any size system and budget with a range of top quality products that have been hand-picked over our three decades in the field.

Benefits of going solar with Sun First


Sun First Solar offers cash purchase, loans, monthly and pre-paid leases from many partners such as PACE (CaliforniaFIRST and HERO), Mosaic, SunPower, YGrene and Sungage. Our financing options can help you make going solar easy.

Increase Property Value

Homes with solar electric systems have higher property values and typically sell quicker than non-solar homes. As solar grows, demand for properties equipped with solar will continue to rise.

Professional Installers

Our install team has completed hundreds of jobs throughout California. They can install a state-of-the-art solar energy system on nearly every type of roof. We do not use subcontractors and instead we are proud to offer the experience of our own solar install team. Our team is certified to install and we're proud of the customer service you’ll receive from a family business.

Client Testimonials

  • I just have to say what a fantastic company. They came out took care of the permits put everything in the right place I just couldn't be happier. I would happily recommend them to anyone!

    Craig I.

  • I really can't say enough about this team. Excellent in every way. I had a 2.6kw system installed in 2007 and added another 2.5kw in March of 2016. The older DC panels are still working great and the newer AC panels are a step above. I would definitely choose the new Sunpower AC panels. I did my due diligence the second time around and no one could match their prices. Sure, you can get cheap Chinese panels but why not buy the Made in the USA Sunpower ones? They are in San Jose and I believe the warranty is 25 years parts AND labor. Try to match that. They are a local Marin business and they certainly get 5 stars from me. Look no further. And, go solar!

    Craig I.

  • SunFirst! arrived when promised, and the team quickly got to work. By the end of the day, our 20-panel array, inverter, and emergency disconnect were in place and fully-functional. Not only this, the installation looks great -- everything from the panel fit to the conduit. They even painted (or perhaps it's already color-matched) the exposed rooftop conduit run to match the color of our shingles.


  • They installed our solar electric panels 4.5 years ago. Our monthly power bill has been $0 since then. Everything is still working well. Whenever I have questions, they got answers. AND... we hired them to install our solar pool system. That was 2 years ago. No leak. A+. I would do biz with Sun First again.

    Bobby D.