15 Best Solar Companies in Altadena, CA (2023 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Altadena based on:
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Customer review scores
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Service area for Altadena, CA
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Company policies and services offered
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Accreditations and certifications
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Average Altadena homeowner saves $2,404/year with solar panels
Updated September 15, 2023
Why you can trust EcoWatch
Best Solar Companies in Altadena
As a homeowner in Altadena, you may be planning on switching to solar energy and wondering about the best solar companies in your local area. Solar could be a good idea since it comes with lots of perks. With an average energy bill of $71 per month in Altadena, switching to solar energy can lower your monthly bills by about that much.
In this article, we'll give you a list of the top Altadena solar installers so you can make the best decision for your home's solar energy needs. Interested in knowing the cost of installing a solar system on your roof? Click "get quote" below to get a free, no-obligation quote from a top Altadena solar installer.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
EcoWatch Rankings for Solar Companies in Altadena

Los Angeles Solar
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Free Quotes
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Clear Pricing Policy
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Reliable Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Expert panel installation

Los Angeles Solar Pros
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Prompt Service Delivery
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Reliable Customer Support
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Free Quotes
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Limited information available on website
Services Offered
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Energy storage solutions
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Expert panel installation
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Tailored solutions
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Business installations
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Integrated roofing
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Home installations

SunPower by Sun Solar-OC
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Clear Pricing Policy
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Informative Resources
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Reliable Customer Support
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Limited information available on website
Services Offered
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Business installations
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Expert panel installation
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Energy storage solutions
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Tailored solutions
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Home installations

SunPower by True Power Solar
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Free Quotes
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Reliable Customer Support
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Informative Resources
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Integrated roofing
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Expert panel installation
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Tailored solutions
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Home installations
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Energy storage solutions
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Business installations

Simple Solar Energy Solutions
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Free Quotes
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Clear Pricing Policy
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Informative Resources
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Reliable Customer Support
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Limited information available on website
Services Offered
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Integrated roofing
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Tailored solutions
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Home installations
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Expert panel installation
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Energy storage solutions

First American Solar
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Informative Resources
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Reliable Customer Support
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Free Quotes
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Integrated roofing
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Home installations
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Business installations
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Expert panel installation
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Tailored solutions

Altadena Energy & Solar
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Informative Resources
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Free Quotes
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Reliable Customer Support
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Home installations
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Expert panel installation
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Energy storage solutions
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Tailored solutions
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Business installations
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Integrated roofing

Green Integrations and Management Inc.
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Informative Resources
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Clear Pricing Policy
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Reliable Customer Support
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Free Quotes
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Limited information available on website
Services Offered
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Tailored solutions
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Business installations
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Home installations
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Expert panel installation
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Energy storage solutions

Solar Avalanche | Solar Energy
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Clear Pricing Policy
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Reliable Customer Support
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Free Quotes
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Informative Resources
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Limited information available on website
Services Offered
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Integrated roofing
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Tailored solutions
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Energy storage solutions
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Expert panel installation
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Home installations

Annex Solar
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Clear Pricing Policy
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Reliable Customer Support
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Free Quotes
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Informative Resources
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Limited information available on website
Services Offered
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Tailored solutions
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Expert panel installation
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Home installations
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Energy storage solutions

American Solar Power
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Reliable Customer Support
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Informative Resources
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Clear Pricing Policy
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Free Quotes
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Limited information available on website
Services Offered
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Home installations
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Integrated roofing
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Tailored solutions
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Business installations
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Expert panel installation

Anca Solar
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Clear Pricing Policy
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Reliable Customer Support
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Prompt Service Delivery
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Limited information available on website
Services Offered
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Business installations
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Skilled repairs
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Home installations
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Energy storage solutions
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Tailored solutions
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Expert panel installation
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Integrated roofing

Magic Solar
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Clear Pricing Policy
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Free Quotes
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Reliable Customer Support
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Informative Resources
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Limited information available on website
Services Offered
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Energy storage solutions
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Tailored solutions
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Home installations
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Expert panel installation
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Integrated roofing
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Business installations

Clean Initiative
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Clear Pricing Policy
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Informative Resources
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Free Quotes
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Reliable Customer Support
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Limited information available on website
Services Offered
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Home installations
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Expert panel installation
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Energy storage solutions
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Tailored solutions
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Integrated roofing

Markey Electric and Solar
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Prompt Service Delivery
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Informative Resources
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Reliable Customer Support
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Clear Pricing Policy
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Free Quotes
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Limited information available on website
Services Offered
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Business installations
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Home installations
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Tailored solutions
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Expert panel installation
Methodology: How We Ranked the Best Solar Companies in Altadena
EcoWatch's solar experts analyzed each solar company in Altadena 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 Altadena
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 Altadena
For many people considering switching to solar, the decision of which solar company to go with depends on total costs. Some main factors that determine the cost of installing solar panels on your home and how much money you could save over time include:
- The amount of sunlight your roof gets: This, along with how your roof is set up, affects affect how much energy your solar panels can make.
- The cost of electricity in your area: If your local electricity rates are high, there's a good chance you'll end up with a higher return on your investment in solar panels. In Altadena, you can save an average of $71 a month on your electricity bills.
- Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, lets you deduct 30% of the cost of installing your solar panel system from your federal taxes. Additionally, not including incentives, you can save about $29,000 over 20 years on your energy bills.
- The kind of solar panel system you can buy: This hinges on how much you're willing to invest upfront.
So are solar panels worth it? Whether you hope to lower your electricity costs, carbon emissions or both, solar panels are a great investment for many Altadena homeowners.
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Solar Incentives in Altadena
Because solar power is better for the environment than traditional energy sources, there are several government incentives available to encourage its adoption. You are eligible for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar system. You can also potentially use the ITC with other state and city incentives. In our article on solar incentives, you can find out about the incentives you qualify for in your area.
Environmental Impact of Switching to Solar in Altadena
Many want to do what they can to help save the environment, which for many is the chief motivation to install a solar system. But how much can installing solar panels actually affect the environment? In a city like Altadena where energy use is somewhat high, switching to solar energy is a great idea for households who are worried about the state of the planet. While making solar panels releases carbon dioxide emissions, the panels make up for it by greatly decreasing the amount of CO2 you would have been responsible for if you still used nonrenewable energy. In Altadena, you can reduce your carbon footprint by 50 pounds a year with solar panels. As you can see, trading traditional energy for solar has so many other benefits apart from saving money. One of the major ones is that you can help save the Earth too.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
EcoWatch's Altadena, CA Solar Company Rankings FAQs
Which solar panel installer is the best in Altadena?
The best local solar company in Altadena is AWS Solar, with a rating of 4.01 stars.
What are the best and worst things about solar power?
The greatest advantages of solar power are that it can reduce or, for some, completely eradicate your electricity bills, raise your home's value and bring down your carbon footprint. The greatest disadvantages are that solar panels can be pricey to install, you may not save a lot if you don't use a lot of electricity and whether you can install solar panels depends on your roof configuration.
Are solar panels worth it?
Solar panels need a significant upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a range of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.
How efficient is a solar panel system?
Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating between 15 and 20%. If your panels are more efficient, you'll need fewer of them for your home's 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.