Semper Solaris – Monterey Solar and Roofing Company

#1 Trusted Solar Company in Northern California

We also serve Bakersfield, Chico, Fresno, Inland Empire, Los Angeles, Orange County, Palm Springs, Riverside, Sacramento, San Diego County, and San Francisco.

Find out about our zero-down solar solution

Get a Free On-Site Energy Analysis

Go solar in 3 easy steps

Energy Use & Site Analysis

Our friendly representative will visit your location, provide helpful tips on energy use, crunch the numbers on your usage and determine the best way to deploy your solar array to save you the most money.

Preparation and Installation

We take care of all plans, permits, and engineering and then our skilled technicians will arrive to install your system in just a few short days. We specialize in perfection.

Power on and Enjoy

All of our systems come with easy performance monitoring. You can just sit back, relax and enjoy as your savings rocket sky high.


Veteran Owned Semper Solaris Supports Our Military


“We are incredibly happy with the results and have immediately witnessed the cost savings. We can’t tell you how happy we have been with this entire process.” – Dan & Tracy Jackson // Semper Solaris Customer

Go green with Solar Monterey to cut your costs big time

Monterey – Innovator in Solar Energy

The city of Monterey holds exciting possibilities for solar energy. Despite being so close to the beach and having its own bay, Monterey still gets plenty of sunshine and is a prime spot for solar panel installation. Nearby Salinas has taken innovative steps in solar installation by installing panels on unused farmland, which will then be used to help the surrounding farm. The city is also discussing possible new steps in solar installation and farmland in the future, and is the process of discussing a brand-new permitting process for such possibilities. Monterey County is especially supportive of solar projects, especially on homes, and even offers expedited solar permits. Monterey may be the next forward-thinking California city when it comes to solar, and solar is a great opportunity for its residents. If you could have a beautiful home in the cool beach weather and still have excellent, efficient solar power—why wouldn’t you?

A Great Time to Go Solar

California has long been a pioneer in solar energy and a great supporter of going solar. California continues to offer tax credits to encourage homeowners to go solar as soon as possible, and to help the state in its goals to increase its renewable energy. Now is the time to install solar, while the fire’s still hot and while California is eager to support you and your solar project! While utility bills continue to rise, solar panels have continued to become less and less expensive. The sooner that you install solar panels, the sooner you can say goodbye to your electric bill and stop paying an unnecessary cost. Why give hundreds of extra dollars to the electric company while you wait to install?

Freedom to Choose

Semper Solaris gives you the freedom to choose where your solar panels come from, because American Made solar panels are the highest quality solar panels available. American Made panels have set world records in energy efficiency, and have a unique copper backing that makes them much more durable than others. Also, this copper backing protects against corrosion and overheating, allowing panels to expand with the heat without breaking or cracking. They absorb more sunlight than other panels, meaning a bigger bang for your buck. And they come with a 25-year warranty, unlike many other 10-year limited warranties, which don’t protect your whole system.

Why Install Solar?

At Semper Solaris, our goal is to make solar simple. Installing solar is a basic math problem, where a one-time investment saves you years and years of bills. There are tax incentives, excellent financing opportunities like the HERO program, and more. Solar energy systems increase the value of your home, and are an excellent form of renewable energy.

Why Semper Solaris?

Semper Solaris is well established as a reputable company with a strong work ethic, commitment to following through on our word, and well-trained installation experts. We pride ourselves on our relationships with our homeowners, and always communicate thoroughly and honestly with each and every customer. Our business thrives off of referrals, and we love knowing that so many homeowners recommend us to their friends and families. We have many happy customers on Yelp, Angie’s List, and more—and the Better Business Bureau has given us an A+ rating on our accreditation. Our certified solar and roofing installers love to be on time and ready to answer your questions. Call Semper Solaris today, and we will send one our experts over to sit with you, evaluate your home, and help you find the best solar option for you and your situation.

Solar Panels Positioned Perfectly on clay Tile Roof

Semper Solaris – Monterey Solar and Roofing Company

We proudly serve these cities in Monterey County: Carmel-by-the-Sea, Del Rey Oaks, Gonzales, Greenfield, King City, Lockwood, Marina, Monterey, Pacific Grove, Salinas, Sand City, Seaside, and Soledad.

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Save $500 when going solar!
Trusted Partners


Corporate Office – El Cajon

1805 John Towers Avenue
El Cajon, CA. 92020
PHONE: (619) 357-4142
Contractor’s license: #978152
Privacy Policy


San Diego

964 Fifth Ave. #510
San Diego, CA 92101
(619) 432-4222

Los Angeles

10713 Norwalk Blvd.
Sante Fe Springs, CA 90670
(213) 634-4313

Orange County

1701 East Edinger Avenue Suite H1
Santa Ana, CA. 92705
(714) 831-3221

Bay Area

2505 Amaral Court
Hayward, CA 94544
(650) 727-9272



177 N. First St.
Fresno, CA 93702
(559) 529-6560

Inland Empire

1218 Spring Street
Riverside, CA. 92507
(951) 900-3970


3600 Pegasus Drive Unit #3
Bakersfield, CA 93308
(661) 577-4888

Palm Desert

74350 Alessandro Dr.
Palm Desert, CA 92260
(760) 263-3366