15 Best Solar Companies in Fontana, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Fontana based on:
Customer review scores
Service area for Fontana, CA
Company policies and services offered
Accreditations and certifications
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Average Fontana homeowner saves $2,142/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Fontana
When deciding on the best solar panel companies, Fontana homeowners have more choices than ever before, which can be too much to take in, but we’re here to make making the switch to solar energy that much easier. It’s no surprise that Fontana, somewhere with lots of sunlight, has tons of solar growth, so several of the best solar companies in the nation have set up shop there to help residents adopt renewable energy.
Here, we’ll give you a list of some of the best solar companies in Fontana to make your decision a bit easier.To get free quotes from the leading solar companies in Fontana, 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 Fontana

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


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


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



Shaw Energy Consulting LLC
Reliable Customer Support
Informative Resources
Clear Pricing Policy
Limited information available on website
Services Offered
Battery Storage
Panel Installation
Consultation

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
Battery Storage
Financing Assistance
Permit Assistance
Consultation
Solar Carports

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



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

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

Methodology: How We Ranked the Best Solar Companies in Fontana
EcoWatch's solar experts analyzed each solar company in Fontana 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 Fontana
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 Fontana
The cost of putting up solar panels has dropped greatly in the past several years, but it’s still a large investment for most homeowners.Some significant things that determine how much it will cost and how much you could save include:
- The type and model of solar panels you’re thinking of getting: More efficient models cost more, so that will shape your budget for your solar project.
- Incentives: The federal solar investment tax credit, which everyone qualifies for, allows you to deduct 0 of the cost of installing your solar panel system from your taxes. Plus, not including incentives, you can save about $25,000 over 20 years on your energy bills.
- The amount of sunlight your roof gets: If your roof doesn’t see much direct sunlight, your solar panel system won’t be able to generate as much energy, which will give you lower savings on power bills than a roof that gets a lot of sunlight.
- How much energy your household consumes: Households that use plenty of electricity each month may require more solar panels and, as a result, be more expensive, but will also save more on their energy bills over time.
There are many great benefits of solar despite the initial cost of installation. It can help the environment and your wallet. Additionally, it can raise the value of your home, giving you even more benefits if you decide to sell your home later.
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Solar Incentives in Fontana
One of the good things about installing a solar panel system is receiving federal and potentially state incentives.State and city solar incentives depend on the location and, sometimes, utility company. A lot of states offer rebates for home solar power systems, 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 Fontana.
Environmental Impact of Switching to Solar in Fontana
There are many reasons to switch to solar energy, like saving on electricity bills and helping to lower your carbon footprint.But how much can switching to solar actually affect the environment? Something that can dramatically influence your carbon footprint is how long your commute is and how much you drive overall. If you switch to solar power and drive an electric car, you can significantly decrease your carbon dioxide emissions by charging your car at home.After you go solar, your carbon emissions can be reduced by about 50 pounds every year. Since energy from the sun is plentiful and produces electricity without releasing carbon emissions, installing solar panels is one easy step you can take to help the planet.
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 Fontana, CA Solar Company Rankings FAQs
Which solar power company is the best near me?
In Fontana, SunPower by Sea Bright Solar is the most reputable local solar company. Our team of experts rates it 4.40 stars, so it's a good choice if you're planning on installing solar panels on your home.
What is the negative environmental impact of solar panel manufacturing?
Solar panels can be bad for the environment when manufacturers use toxic chemicals in the manufacturing process. Chemicals can make solar panels difficult to dispose of 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 to see a return on your investment after getting solar panels?
Solar panels generally pay for themselves in about 9.1 years, but your solar payback period will depend on your utility costs. The higher your typical power bill, the quicker your solar panel system will pay for itself.
When should I put up solar panels?
Although summer is the most popular time people install solar panels, the perfect time is actually winter. You can save money since there's not as much demand during the winter months, and it lets you be up and running with solar for the more expensive 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.
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.