15 Best Solar Companies in San Gabriel, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in San Gabriel based on:
Customer review scores
Service area for San Gabriel, CA
Company policies and services offered
Accreditations and certifications
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Average San Gabriel homeowner saves $2,108/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in San Gabriel
Thinking of going solar but want to know which company would be best for you? Although it can be difficult to find a solar company, the effort will pay off because going solar has many great perks. You may have to spend a decent amount of money upfront for solar panels, but the switch will save you money on your power bills in the long term. In fact, you can look forward to saving about $25,000 over 20 years.
As you start your search for the best solar companies in San Gabriel, you’ll notice that there are a lot of providers to choose between. So, we’ve accumulated an expertly curated list of the top solar companies in the area.We advise shopping around for quite a few quotes and comparing them to see which is the best installer for your home. To get free, no-pressure quotes from trusted solar panel companies in San Gabriel, click the link below.
EcoWatch Rankings for Solar Companies in San Gabriel

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


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

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

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


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


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

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

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

SunSolar U.S.
Reliable Customer Support
Prompt Service Delivery
Clear Pricing Policy
Informative Resources
Free Quotes
Limited information available on website
Services Offered
Solar Carports
Financing Assistance
Permit Assistance
Consultation
Battery Storage
Panel Installation


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

Methodology: How We Ranked the Best Solar Companies in San Gabriel
EcoWatch's solar experts analyzed each solar company in San Gabriel 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 Gabriel
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 Gabriel
When picking a solar company, most homeowners or business owners wonder about the costs the most.Some important factors that influence how much it will cost to install solar panels on your home and how much money you could save over time are:
- The type of solar panel system you can buy: This depends on your income and budget.
- Incentives: The federal solar investment tax credit, which can save you some money, lets you deduct 0 of the cost of your solar system installation from your taxes. Additionally, not including incentives, you can save about $25,000 over 20 years on your energy bills.
- How much you spend on energy: The average household in San Gabriel spends around $1,200 a year on energy use alone, so you could end up with that much in savings.
- Your location: This influences the average daily sunlight your roof gets, which helps determine how many panels you need.
Solar is a fruitful investment for most homeowners. You can make your own power instead of paying for it from the grid and take advantage of solar incentives and rebates, all while helping protect the planet.
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Solar Incentives in San Gabriel
Since solar power is a cleaner source of energy than fossil fuels, there are quite a few government incentives in place to encourage people to make the switch.There are a lot of federal, state and local rebates and tax credits that can earn you a decent amount of money back after buying solar panels. Check out our article on solar incentives to find out what incentives you can benefit from.
Environmental Impact of Switching to Solar in San Gabriel
One of the most compelling reasons to tap into solar power is to decrease your dependence on traditional energy sources like burning fossil fuels, which are damaging for the environment.You may be asking yourself – how much does making the switch do for the planet anyway? If your household uses a lot of energy, you can have an even greater impact on the planet by switching to solar energy.Because solar panels don’t release CO2 emissions into the atmosphere when creating electricity, they’re a good swap for nonrenewable energy sources. In fact, you could be looking at reducing your carbon dioxide emissions by about 50 pounds each year. For those who care about the environment, the upfront cost of solar is a small price to pay for the offset carbon emissions.
EcoWatch's San Gabriel, CA Solar Company Rankings FAQs
What is the most reputable solar panel company in San Gabriel?
In San Gabriel, Altadena Energy & Solar is the best local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're planning to add solar panels to your house.
What is the negative environmental impact of solar panels?
Solar panels can be harmful 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.
Are solar panels worth it?
Solar panels require a considerable upfront investment that costs over ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like local electricity rates and the amount of direct sunlight your roof gets.
When is the best time of year to install solar panels?
Despite summer being the most common time people install solar panels, the best time is actually winter. You can save money since there's less demand during the winter months, and it allows you to be up and running with solar for the higher power bills you may get during the summer.
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.