15 Best Solar Companies in Gardena, CA (2024 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Gardena based on:

  • Customer review scores
  • Service area for Gardena, CA
  • Company policies and services offered
  • Accreditations and certifications

Average Gardena homeowner saves $2,265/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated May 20, 2024

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 Gardena

Choosing the right solar panel installation company for your roof is an important decision, but it's one that can pay off big in Gardena. What's especially pushing a lot of readers toward going solar is their sizable energy bills that keep increasing each year.


If you’re considering going solar, the first step you should take is to find the best solar companies in Gardena and compare quotes. That’s why we went ahead and put together a list of the best solar companies for you.We advise shopping around for several quotes and comparing them to see which is the best installer for your home. To get free quotes from the top solar companies in Gardena, click the link below.

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 for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch Rankings for Solar Companies in Gardena

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower by Sun Solar-OC

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

Services Offered

  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Panel Installation

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

3.0/5

SunPower by True Power Solar

  • 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 Panel Installation
  • Service icon Cleaning and Maintenance

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

5.0/5

ProSolar California

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Tesla Powerwall

Website: http://www.prosolarcalifornia.com/
Address: 5701 Buckingham Pkwy, Culver City, CA 90230
Phone: 3238971538
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solar Source

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Permit Assistance

Website: https://solarsourceinc.com/
Address: 2954 E 14th St, Long Beach, CA 90804
Phone: 5628525626
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Energy Service Partners

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Skilled Repairs

Website: https://www.joinesp.com/
Address: 970 W 190th St #302, Torrance, CA 90502
Phone: 8668654559
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Ameco Solar & Roofing

  • 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 Battery Storage
  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Consultation

Website: http://www.amecosolar.com/
Address: 7623 Somerset Blvd, Paramount, CA 90723
Phone: 5626334400
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Helios Energy Global

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage

Website: https://www.heliosenergyglobal.com/
Address: 2226 6th St A, Santa Monica, CA 90405
Phone: 4244334943
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Semper Solaris

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://www.sempersolaris.com/locations/los-angeles/
Address: 10713 Norwalk Blvd, Santa Fe Springs, CA 90670
Phone: 2139844554
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Powerfull Solar, Inc

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

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Solar Carports
  • Service icon Financing Assistance
  • Service icon Permit Assistance
  • Service icon Consultation

Website: https://www.powerfullsolarinc.com/
Address: 5316 Venice Blvd., Los Angeles, CA 90019
Phone: 3108047617
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Green Integrations and Management Inc.

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.gimenergy.com/
Address: 3108 Glendale Blvd, Los Angeles, CA 90039
Phone: 8189005471
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Xero Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation

Website: https://xerosolar.com/
Address: 358 Coral Cir, El Segundo, CA 90245
Phone: 3103768740
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

AmeriGreen Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation

Website: http://www.amerigreensolar.com/
Address: 11331 Ventura Blvd #302, Studio City, CA 91604
Phone: 8447047336
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SAVON SOLAR & ROOFING

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

Services Offered

  • Service icon Panel Installation

Website: http://savonsolar.com/
Address: 5254 Long Beach Blvd, Long Beach, CA 90805
Phone: 5629124290
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Treepublic Commercial Solar

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://treepublic.com/
Address: 3521 Jack Northrop Ave, Hawthorne, CA 90250
Phone: 8007018073
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

California Solar System

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

Services Offered

  • Service icon Panel Installation

Website: http://casolarsystem.com/
Address: 8202 Florence Ave, Downey, CA 90240
Phone: 2094432861

Methodology: How We Ranked the Best Solar Companies in Gardena

EcoWatch's solar experts analyzed each solar company in Gardena 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 Gardena


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 Gardena

Solar panels run off a free energy source — the sun — but to take advantage of this you will first need to pay to install your system.The installation cost is just one important factor you should consider when looking into installing solar panels. How much it'll cost and how much you can save depend on things including:

  • Incentives: One thing that can make your solar project cost less is the solar investment tax credit (ITC), which is a tax credit that’s equal to a percentage of the project cost. You can also save on your utility bills, which can lead to an average of $27,000 of savings over 20 years.
  • Your household's power bills: Because of high monthly energy bills in Gardena, you could save about $1,200 a year with solar.
  • System size and type: Some models are more costly than others, so the one you want to get can raise or lower your upfront cost. Plus, the more solar panels you need to buy, the more it'll cost.
  • Whether or not your roof gets a lot of direct sunlight: This, along with the configuration of your roof, affects affect how much power your solar panels can make.

Though a solar panel system costs a good chunk of money upfront, it can save you thousands of dollars over time. The question of how much, though, depends on several factors, such as the size of your house and your energy consumption.

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Solar Incentives in Gardena

In order to increase the number of homes and businesses that use solar power, federal and local governments – and even some utility companies – offer incentives to help make solar power more financially viable and accessible.Regardless of what state you live in, you can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of your project costs on your tax return, lowering the amount of taxes you owe that year. Plus, there may be some state and city incentives that can save you some extra money too. In our article on solar incentives, you can find out about the incentives you qualify for near you.

Environmental Impact of Switching to Solar in Gardena

There are many reasons to make the switch to solar power, like saving money on electricity bills and helping to lower your carbon footprint.But – how much exactly can you help the planet by making the switch to solar? In a city like Gardena where commute times can be pretty long, using solar power can help offset some of your carbon dioxide emissions from driving a lot.In fact, if you make the switch to solar power, 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 perks outside of saving money. One of the major ones is that you can help save the environment too.

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 for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's Gardena, CA Solar Company Rankings FAQs

What is the best solar panel installer in Gardena?

In Gardena, SunPower by Sun Solar-OC is the most reputable local solar company. Our team of experts rates it 3.00 stars, so it's a solid choice if you're looking to install solar panels on your house.

What is the negative environmental impact of making solar panels?

Solar panels can be detrimental for the environment when manufacturers use toxic chemicals when they’re made. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Making solar panels needs a lot of energy as well. The energy payback period is about 1 to 4 years.

Is it worth putting solar panels on my house?

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

How long do solar panels last?

On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger level of energy production.

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.