15 Best Solar Companies in San Marino, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in San Marino based on:
Customer review scores
Service area for San Marino, CA
Company policies and services offered
Accreditations and certifications
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Average San Marino homeowner saves $2,404/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in San Marino
As a homeowner or business owner in San Marino, you may be considering switching to solar energy and curious about the best solar companies in your local area. Solar could be a great choice since it comes with a lot of perks. Because solar panels produce their own power, they can vastly reduce your electricity bill each month, if not completely eliminate it. In fact, you could look forward to about $29,000 of savings over 20 years.
In this article, we’ll help you find the top companies in your area.To get free quotes from the leading solar companies in San Marino, click the "get quote" button below.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch Rankings for Solar Companies in San Marino

SunPower by Sea Bright Solar
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Financing Assistance
Consultation
Panel Installation
Battery Storage

SunPower by Sun Solar-OC
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Consultation
Cleaning and Maintenance
Panel Installation


Altadena Energy & Solar
Reliable Customer Support
Informative Resources
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Permit Assistance
Battery Storage


Powerfull Solar, Inc
Informative Resources
Free Quotes
Reliable Customer Support
Prompt Service Delivery
Limited information available on website
Services Offered
Permit Assistance
Solar Carports
Financing Assistance
Cleaning and Maintenance
Panel Installation
Consultation

AmeriGreen Solar
Clear Pricing Policy
Free Quotes
Prompt Service Delivery
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
Consultation
Financing Assistance

ProSolar California
Informative Resources
Free Quotes
Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance
Panel Installation
Tesla Powerwall
Battery Storage



Solar Source
Family-Operated Business
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Permit Assistance
Financing Assistance
Panel Installation

Imperial Solar
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Consultation
Panel Installation
Battery Storage
Grid-Tied Solar System

CERVUS Solar & Construction
Clear Pricing Policy
Prompt Service Delivery
Informative Resources
Free Quotes
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Skilled Repairs
Consultation
Cleaning and Maintenance
Panel Installation
Financing Assistance

REPOWER OC
Reliable Customer Support
Free Quotes
Informative Resources
Clear Pricing Policy
Prompt Service Delivery
Limited information available on website
Services Offered
Financing Assistance
Panel Installation

SunSolar U.S.
Informative Resources
Clear Pricing Policy
Prompt Service Delivery
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Solar Carports
Permit Assistance
Financing Assistance
Battery Storage
Consultation
Methodology: How We Ranked the Best Solar Companies in San Marino
EcoWatch's solar experts analyzed each solar company in San Marino based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in San Marino
Below are some the criteria we examined specifically for California solar companies
- Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
- Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
- Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
- Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
- Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
- Availability (10%): The bigger the service area, the higher the company will score.
- Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
- Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.
The Cost and Benefits of Solar in San Marino
Solar panels run off a free energy source — the sun — but before you can take advantage of this you will first need to pay to set up your system.The cost and possible savings vary depending on some important factors such as:
- The type and model of solar panels you’re planning on getting: Some cost more, so that will determine your budget for your solar project.
- Incentives: The federal solar investment tax credit currently allows you to reduce your taxes by 0 of the project cost. Your state and city may also have various incentives that you can benefit from. Additionally, you can save about $29,000 over 20 years on your utility bills, before factoring in incentives.
- Average daily sunlight: Since San Marino gets lots of sunlight, your solar panel system will most likely be able to produce enough energy to power your whole home, which influences how much your solar panels can save you on your electricity bills.
- Your energy bills: This will dictate how much you can save. In San Marino, the average resident can save about $1,300 a year on their electricity bills.
Even though a solar panel system costs a good chunk of money upfront, it can save you much more over the lifespan of your panels. The question of how much, though, depends on several factors, such as the angle of your roof and incentives.
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Solar Incentives in San Marino
There are several reasons why you should switch to solar. One of them includes some government incentives that can help save you some money.Local solar incentives vary by location and, sometimes, utility company. A lot of states offer rebates for solar power, in addition to the federal solar tax credit. In our article on solar incentives, you can find out about the incentives you qualify for in San Marino.
Environmental Impact of Switching to Solar in San Marino
Installing solar panels can have a positive effect on the environment.But how much can switching to solar actually help the environment? Everyone can help the planet by switching to solar energy, but homes that use more energy will have a bigger impact.Since solar panels don’t release greenhouse gas emissions into the atmosphere when generating electricity, they’re a good alternative to traditional energy sources. In fact, you could reduce your carbon dioxide emissions by about 50 pounds each year. The benefits of solar power are abundant — just like solar power is! That's why so many San Marino residents have been happy with making the switch to solar.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's San Marino, CA Solar Company Rankings FAQs
Which solar power company is the best near me?
In San Marino, SunPower by Sea Bright Solar is the top local solar company. Our team of experts rates it 4.40 stars, so it's a good choice if you're looking to install solar panels on your roof.
Are solar panels actually good for the environment?
Solar panels can be bad for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Solar panel manufacturing needs a lot of energy as well. The energy payback period is about 1 to 4 years.
How long does it take for solar to pay for itself?
The average payback period for solar panel installation is about 8.1 years, but the exact period is influenced by the cost of electricity where you are, incentives and net metering programs.
How much solar panel capacity do I need for my house?
Solar panel capacity is rated depending on how much power they produce under standard testing conditions. Since each panel can generally produce about 250 to 400 watts per hour, the average home will need 20 to 35 panels.
Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.
Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.