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

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

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

Average Downey homeowner saves $2,108/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated April 21, 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 Downey

Choosing the right solar panel installation company for your home is a huge decision, but it's one that can reap a lot of rewards in Downey. Solar panels aren't just good for the environment — your budget will benefit too. After switching to solar power, you can save an average of $25,000 over 20 years, and this doesn't even include incentives.


There are tons of installers to consider, but in this article, we’ll help you get a handle on all your options by recommending some of the best solar companies in Downey.We suggest shopping around for quite a few quotes and comparing them to find the best installer for your home. To receive free, no-obligation quotes from trusted solar companies in Downey, click the link 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 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

EcoWatch Rankings for Solar Companies in Downey

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower by Sun Solar-OC

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

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

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

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

4.4/5

SunPower by Sea Bright Solar

  • Pros icon Prompt Service Delivery
  • 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 Financing Assistance
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://seabrightsolar.com/
Address: 1785 Industrial Park Ave Building A, Redlands, CA 92374
Phone: 9093475451
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solar Source

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Family-Operated Business
  • 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

4.6/5

Semper Solaris

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

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

4.4/5

Ameco Solar & Roofing

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

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

4.2/5

Better Earth Solar

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

Services Offered

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

Website: http://betterearth.solar/
Address: 16720 Marquardt Ave, Cerritos, CA 90703
Phone: 8883739379
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Energy Service Partners

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

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

4.9/5

TENCO SOLAR

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

Services Offered

  • Service icon Permit Assistance
  • Service icon Solar Carports
  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon System Decommissioning
  • Service icon Cleaning and Maintenance

Website: https://tencosolar.net/
Address: 700 N Valley St Suite C, Anaheim, CA 92801
Phone: 8885076937
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Green Integrations and Management Inc.

  • Pros icon Free Quotes
  • 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 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

5.0/5

ProSolar California

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

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

EcoWatch Rating

5.0/5

Altadena Energy & Solar

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

Services Offered

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

Website: http://www.altadenasolar.com/
Address: 1585 N Lake Ave, Pasadena, CA 91104
Phone: 8182014206
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Next Level ADU builders and solar energy

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

Services Offered

  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

Website: https://nextlevelenergy.solar/
Address: 8520 Florence Ave ste E, Downey, CA 90240
Phone: 8183512593
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
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Harrison Electric & Solar

  • Pros icon Informative Resources
  • 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 Consultation

Website: http://www.harrisonelectric.com/
Address: 11834 Camilla St, Whittier, CA 90601
Phone: 5626958321

Methodology: How We Ranked the Best Solar Companies in Downey

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


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 Downey

We understand that for many homeowners, the choice to invest in solar hinges on installation costs.Some important things that determine the upfront cost and potential savings over time include:

  • Incentives: Those who install a solar system this year can save 0 of their solar installation costs by using the federal solar investment tax credit. You can also save about $25,000 on your utility bills over 20 years not including incentives.
  • Your location: This affects how much sunlight your roof gets, which helps determine how many panels you need.
  • Energy consumption: Installing solar panels may be too steep of an investment for households that don’t use too much energy each month.
  • The type of solar panels you’re planning on getting: More high-tech panels have higher prices, so that will affect your budget for your solar project.

Thanks to solar panels decreasing in cost as well as various solar incentives, they are a cost-effective investment for most homeowners.

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Solar Incentives in Downey

Adopting solar power has a lot of wonderful benefits. Not only can it help preserve the environment, but you can also save a decent amount of money on your installation with various government incentives.When you install a solar panel system, you can claim the federal tax credit, or ITC. This credit currently lets you lower your tax bill by 0 of the cost of your solar panels. Additionally, there may often be some state and city incentives that you can use to further cut back on the cost of solar of solar panels. Our article on solar incentives has more information on the incentives you can benefit from in Downey.

Environmental Impact of Switching to Solar in Downey

Many want to do what they can to help save the environment, which often is the primary motivation to install a solar system.But you may be wondering – how much exactly can you help the planet by making the switch to solar? One thing that can drastically affect your carbon footprint is how long your commute is and how much you drive overall. If you install solar panels and have an electric car, you can greatly lower your carbon dioxide emissions by charging your car at home.In fact, if you make the switch to solar power, you could reduce your carbon dioxide emissions by about 50 pounds each year. The good things about solar power are plentiful — just like solar power is! That's why so many homeowners have been happy with using solar energy.

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 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

EcoWatch's Downey, CA Solar Company Rankings FAQs

Which solar installation company is the best near me?

The best local solar company in Downey is SunPower by Sun Solar-OC, with a rating of 3.00 stars.

What is the negative environmental impact of solar panel manufacturing?

Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the manufacturing process. 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.

Are solar panels worth it?

Solar panels can be a good investment for a majority of homeowners, but truthfully, 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 often do solar panels have to be replaced?

Even though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they stop working completely. What this means is their energy production will have decreased by about 0.8% each year since installing them. You can opt to replace them once you've had 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.