15 Best Solar Companies in Fullerton, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Fullerton based on:
Customer review scores- Service area for Fullerton, CA
- Company policies and services offered
- Accreditations and certifications
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Average Fullerton homeowner saves $2,225/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Fullerton
Finding the best solar panel installation company for your home is a big decision, but it's one that can pay off big in Fullerton. Thanks to encouraging government support and incentives, homeowners in Fullerton have access to some of the best solar installers in the nation.
In this article, we’ll review the top Fullerton solar installers so you can find the best one for your home’s solar energy needs.If you’d like to get free, no-obligation quotes from the top Fullerton solar installers, you can click the button below to learn more.
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 Fullerton
SunGuide Solar Inc
Free Quotes- Informative Resources
Limited information available on website
Services Offered
Panel Installation- Consultation
REPOWER OC
- Reliable Customer Support
- Clear Pricing Policy
- Prompt Service Delivery
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
- Financing Assistance
SunSolar U.S.
- Clear Pricing Policy
- Reliable Customer Support
- Prompt Service Delivery
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Financing Assistance
- Consultation
- Panel Installation
- Permit Assistance
- Solar Carports
- Battery Storage
Solar Source
- Family-Operated Business
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Permit Assistance
- Financing Assistance
- Panel Installation
Renew Earth Solar
- Limited information available on website
Services Offered
- Grid-Tied Solar System
- Consultation
- Battery Storage
- Panel Installation
SYNRG Solar - Home Energy Solutions
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Consultation
SolarRepair
- Prompt Service Delivery
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Skilled Repairs
- Battery Storage
- Cleaning and Maintenance
- Solar Panel Upgrades
Altadena Energy & Solar
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Battery Storage
- Permit Assistance
- Panel Installation
Green Integrations and Management Inc.
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
ProSolar California
- Informative Resources
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Battery Storage
- Panel Installation
- Tesla Powerwall
Powerfull Solar, Inc
- Free Quotes
- Informative Resources
- Prompt Service Delivery
- Reliable Customer Support
- Limited information available on website
Services Offered
- Permit Assistance
- Financing Assistance
- Cleaning and Maintenance
- Consultation
- Panel Installation
- Solar Carports
AmeriGreen Solar
- Reliable Customer Support
- Free Quotes
- Prompt Service Delivery
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
- Financing Assistance
Helios Energy Global
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
Imperial Solar
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Grid-Tied Solar System
- Consultation
Shaw Energy Consulting LLC
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
- Consultation
Methodology: How We Ranked the Best Solar Companies in Fullerton
EcoWatch's solar experts analyzed each solar company in Fullerton 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 Fullerton
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 Fullerton
While solar panels can help save you a good amount of money on power bills over time, it’s necessary to take into consideration the upfront costs.The installation cost is just one important factor you should take into account when looking into installing solar panels. How much it'll cost and how much you can save depend on things such as:
- The kind of solar panel system you can afford: This hinges on how much you’re willing to invest upfront.
- The amount of sunlight your roof gets: This, plus the configuration of your roof, affects affect how much power your solar panels can generate.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you deduct 0 of your overall installation cost, your state or local government may offer additional tax exemptions, credits or rebates that can help you save even more. Not including incentives, you can save an average of $26,000 over the first 20 years with your system, too.
- How much energy costs for you: The average family in Fullerton pays around $1,200 a year on energy alone, so you could gain that much in savings.
So are solar panels worth it? Whether you’d like to reduce your electricity costs, greenhouse gas emissions or both, solar panels are a worthwhile investment for many Fullerton homeowners.
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Solar Incentives in Fullerton
One of the good things about installing a solar panel system is receiving government incentives.You are eligible for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar panel system. You can also possibly pair the ITC with other state and city rebates and benefits. Check out our article on solar incentives to learn what incentives you can benefit from.
Environmental Impact of Switching to Solar in Fullerton
If you’re thinking of adding solar panels to your home, one of the major reasons why may be to lower your carbon footprint.But how much can using solar energy instead of traditional energy actually help the environment? The more energy you use, the better off the planet will be when you switch to solar as you won’t have to rely on traditional energy sources as much.In fact, if you install solar panels, you could expect to reduce your carbon dioxide emissions by about 50 pounds each year. As you can see, using solar power has so many other benefits besides saving money. One of the main ones is that you can help save the environment too.
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 Fullerton, CA Solar Company Rankings FAQs
Which solar panel installer is the best near me?
The highest-rated local solar company in Fullerton is SunGuide Solar Inc, with a rating of 5.00 stars.
What are some of the pros and cons of adopting solar power?
The advantages of solar power are that it can decrease or, in some cases, 100% erase your electricity bills, raise the value of your home and bring down your carbon footprint. The greatest disadvantages are that solar panels can be costly to install, you may not save as much if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.
How long does it take for solar to pay for itself?
The average payback period for solar panel installation is about 8.7 years, but the exact period depends on 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 how much energy the panels can create under ideal conditions (a sunny day around noon). The average household has to get between 20 and 35 panels to cover their energy needs.
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.