15 Best Solar Companies in Fullerton, CA (2023 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

Average Fullerton homeowner saves $2,225/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated September 15, 2023

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Fullerton

Searching for the best solar companies in Fullerton? Installing a solar panel system is an exciting home addition that many homeowners find rewarding for their wallets, communities and the planet. On average, you can save $26,000 over 20 years by using solar power. And since solar panels have a lifespan of about 25 to 30 years, your total cost savings will be much higher than that overall.

The cost of installing solar panels can change substantially based on your home's infrastructure and your overall energy usage. To get free quotes from the top-rated solar companies in Fullerton, click the "get quote" button below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch Rankings for Solar Companies in Fullerton

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.4/5

SunPower by Sun Solar-OC

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Home installations
  • Service icon Tailored solutions

Website: https://sunpowerbysunsolaroc.com/
Address: 4085 E La Palma Ave Suite B, Anaheim, CA 92807
Phone: 9497349695
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Simple Solar Energy Solutions

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Home installations

Website: http://www.simplesolares.com/
Address: 7755 Center Dr Ste. 1100, Huntington Beach, CA 92647
Phone: 8448576527
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Los Angeles Solar Pros

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Energy storage solutions

Website: http://www.lasolarpros.com/
Address: 7807 Telegraph Rd, STE K-L, STE K-L, CA 90640
Phone: 3237651040
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.2/5

Sun Synergy Consulting, Inc. SunPower Authorized Company.

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Energy storage solutions

Website: http://sunsynergyinc.com/
Address: 200 Spectrum Center Dr STE 300, Irvine, CA 92618
Phone: 9514288382
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower by True Power Solar

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions

Website: http://www.truepowersolar.com/
Address: 201 Clark Ave, Pomona, CA 91767
Phone: 7146768888
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Los Angeles Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Tailored solutions
  • Service icon Expert panel installation

Website: http://los-angeles-solar.business.site/
Address: 14807 Aetna St, Van Nuys, CA 91411
Phone: 8188733302
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Levion Solar

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions

Website: https://levionsolar.com/contact
Address: 2020 Iowa Ave, Riverside, CA 92507
Phone: 9515542202
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

SolMark

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions

Website: http://www.solmark.co/
Address: Cypress, CA 90630, CA 90630
Phone: 8183305515
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Good Neighbor Energy

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Integrated roofing

Website: http://www.goodneighborenergy.com/
Address: 12672 Hoover St, Garden Grove, CA 92841
Phone: 7142022549
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Local Solar

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Energy storage solutions

Website: https://localsolar.io/ca/santa-fe-springs
Address: 9970 Bell Ranch Dr #102, Santa Fe Springs, CA 90670
Phone: 9496623167
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

REPOWER OC

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Energy storage solutions
  • Service icon Tailored solutions

Website: http://www.repoweroc.com/
Address: 1420 E Chapman Ave, Orange, CA 92866
Phone: 7144647721
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Green Pacific Solar Inc.

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations

Website: http://www.yoursolarnow.com/
Address: 18000 Studebaker Rd Suite 700, Cerritos, CA 90703
Phone: 5625076063
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Tesla Solar Santa Ana

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations

Website: https://tesla-solar-santa-ana.business.site/
Address: 1121 E Wakeham Ave, Santa Ana, CA 92705
Phone: 7142029039
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

SunGuide Solar Inc

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Energy storage solutions

Website: http://www.mysunguide.com/
Address: 1057 E Imperial Hwy #307, Placentia, CA 92870
Phone: 6269414181
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

SolarMax Technology

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon End-to-end services
  • Service icon Energy storage solutions

Website: https://www.solarmaxtech.com/
Address: 3230 Fallow Field Dr, Diamond Bar, CA 91765
Phone: 9092459952

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

The cost of installing a solar panel system has gone down significantly over the past few years, but it's still a significant investment for most homeowners. The overall price and potential savings vary depending on some important factors such as:

  • How much sunlight your roof gets: This, plus how your roof is set up, affects affect how much power your solar panels can produce.
  • Your current electric bills: Solar panels can significantly decrease, or totally get rid of, your utility bills. In Fullerton, you can save an average of $67 a month.
  • Incentives: The federal solar investment tax credit currently lets you lower your taxes by 30% of the project cost. Your state and even local utility companies may also have incentives and rebates that you can take advantage of. Plus, you can save about $26,000 over 20 years on your utility bills, without incentives.
  • The type of solar panels you can afford: This depends on how much you're willing to invest upfront.

Although a solar panel system costs a sizable chunk of money upfront, it can save you much more over the lifespan of your panels. The question of how much, though, depends on a number of factors, including the amount of daily direct sunlight available and your energy consumption.

Solar Savings Calculator for {{ solarcalc.name }}

To find out how much you can help the environment and your wallet by switching to solar, try out the calculator below. You can also view our solar panel cost guide for Fullerton, CA.

{{ solarcalc.time_period|number:0 }} -year savings {{ solarcalc.total_savings()|currency }}
Estimated cost {{ solarcalc.array_cost() | currency }}
Estimated incentives {{ solarcalc.incentive_savings() | currency }}
Payback period {{ solarcalc.payback_period()|number:1 }} years
CO2 emissions prevented {{ solarcalc.CO2_total()|number:0 }} lbs
Miles driven equivalent {{ solarcalc.CO2_total()/0.78|number:0 }} mi
Why leave {{ solarcalc.total_savings()|currency }} on the table? Help the environment and your wallet by switching to solar. SAVE NOW

Electricity rate:
{{ solarcalc.elec_cost/10 }} ¢
Shade:
{{ solarcalc.shade }} %
Time period:
{{ solarcalc.time_period }} years
System size:
{{ solarcalc.system_size }} kW
Additional Incentives:
{{ solarcalc.additional_incentives|currency }}

Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years. This means that with an average cost of {{ solarcalc.array_cost() | currency }}, it would take {{ solarcalc.payback_period()|number:1 }} years to recover the cost of of your solar array.

Solar Incentives in Fullerton

There are several reasons why you should switch to solar. One of them consists of some government incentives you can take advantage of. When you install solar panels on your house, you can claim the federal tax credit, or ITC. This credit currently reduces your tax bill by 30% of the cost of your solar panels. In addition, there are often some regional incentives that you can take advantage of to further save. For detailed information about incentives for homeowners in Fullerton, check out our article on solar incentives.

Environmental Impact of Switching to Solar in Fullerton

If you're planning on adding solar panels to your home, one of the principal reasons why may be to lower your greenhouse gas emissions. Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Fullerton, though. The average person has a rather large carbon footprint. Between their car, which is responsible for over 10,000 pounds of carbon dioxide emissions each year, and electricity for their home, it can be overwhelming to think about what to do. Installing solar panels is a simple thing you can do to help. In Fullerton, the average homeowner can reduce their carbon footprint by 50 pounds a year after going solar. For those who care about the environment, the upfront cost of solar is a small price to pay for the offset carbon emissions.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch's Fullerton, CA Solar Company Rankings FAQs

What is the most reputable solar panel installer in Fullerton?

The highest-rated local solar company in Fullerton is REPOWER OC, with a rating of 4.01 stars.

What are the pros and cons of solar power?

A few of the biggest pros are that it lets you spend less on your electricity bills, it's good for the environment, and it can provide a significant return on your investment (ROI). The most notable cons are that solar panels don't work as well when there's limited direct sunlight, the startup costs are high and solar panels can be an eyesore.

Are solar panels worth it?

Solar panels can be a beneficial investment for a majority of homeowners, but admittedly, they might not be worth it for everyone. If your home doesn't get enough sunlight or your power bills are already pretty low, solar panels might not be for you.

How long do solar panels last?

Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is how much energy they produce will have decreased by about 0.8% each year since installing them. You can replace them after having them for that long or you can continue to use them at a lower efficiency after that time.

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.