15 Best Solar Companies in South Monrovia Island, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in South Monrovia Island based on:
Customer review scores
Service area for South Monrovia Island, CA
Company policies and services offered
Accreditations and certifications
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Average South Monrovia Island homeowner saves $2,124/year with solar panels
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Best Solar Companies in South Monrovia Island
If you’re a homeowner looking to take advantage of the solar incentives in South Monrovia Island, it can be difficult to narrow down which installer to decide on. But, the process is worth it since switching to solar power is typically a good idea. Over 20 years of offsetting your energy costs with a solar panel system, you can save about $25,000 on your electricity bills.
Here, we’ll list out some of the top solar companies in South Monrovia Island to make your decision a bit easier.To help you know if solar panels are worth it for your home, you can get a free, no-obligation quote from one of the best solar companies in South Monrovia Island by clicking the button below.
EcoWatch Rankings for Solar Companies in South Monrovia Island

Altadena Energy & Solar
Reliable Customer Support
Informative Resources
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Permit Assistance
Panel Installation
Battery Storage



Powerfull Solar, Inc
Informative Resources
Free Quotes
Reliable Customer Support
Prompt Service Delivery
Limited information available on website
Services Offered
Financing Assistance
Cleaning and Maintenance
Solar Carports
Panel Installation
Consultation
Permit Assistance

AmeriGreen Solar
Prompt Service Delivery
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance
Consultation
Panel Installation

ProSolar California
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Tesla Powerwall
Battery Storage
Financing Assistance

Solar Source
Reliable Customer Support
Family-Operated Business
Free Quotes
Clear Pricing Policy
Informative Resources
Limited information available on website
Services Offered
Permit Assistance
Panel Installation
Financing Assistance

SolarRepair
Clear Pricing Policy
Reliable Customer Support
Informative Resources
Free Quotes
Prompt Service Delivery
Limited information available on website
Services Offered
Skilled Repairs
Cleaning and Maintenance
Solar Panel Upgrades
Financing Assistance
Battery Storage
Panel Installation


REPOWER OC
Free Quotes
Prompt Service Delivery
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
Financing Assistance

SunSolar U.S.
Informative Resources
Clear Pricing Policy
Prompt Service Delivery
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Solar Carports
Financing Assistance
Permit Assistance
Panel Installation
Battery Storage
Consultation


CERVUS Solar & Construction
Informative Resources
Reliable Customer Support
Free Quotes
Clear Pricing Policy
Prompt Service Delivery
Limited information available on website
Services Offered
Cleaning and Maintenance
Panel Installation
Skilled Repairs
Battery Storage
Financing Assistance
Consultation

Imperial Solar
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Consultation
Grid-Tied Solar System
Battery Storage
Panel Installation

Methodology: How We Ranked the Best Solar Companies in South Monrovia Island
EcoWatch's solar experts analyzed each solar company in South Monrovia Island 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 South Monrovia Island
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 South Monrovia Island
We understand that for lots of homeowners, the decision to invest in solar hinges on installation costs.The cost of solar and the savings it generates vary depending on a few important factors such as:
- The type of solar panels you have the money for: This is dependent on what your budget is.
- How much energy you use: If your household needs to use a lot of energy, you'll benefit more from switching to solar.
- Incentives: The federal solar investment tax credit, which can save you some money, lets you deduct 0 of the cost of your solar system installation from your taxes. Plus, not including incentives, you can save about $25,000 over 20 years on your energy bills.
- Whether or not your roof gets a lot of direct sunlight: This, and how your roof is set up, affects affect how much energy your solar panels can produce.
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 a number of factors, such as the size of your house and your local electricity rates.
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Adopting a sustainable source of energy can significantly impact both the environment and your monthly expenses. To see how much, check out the calculator below. You can also view our solar panel cost guide for South Monrovia Island, CA.
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Solar Incentives in South Monrovia Island
In an effort to increase the adoption of solar power, federal and local governments – and even some utility companies – offer incentives to help make switching to solar power more financially viable and accessible.Local solar incentive programs vary by location and, sometimes, utility company. A lot of states offer rebates for solar panels, in addition to the federal solar tax credit. For more information about incentives that apply to you, see our article on solar incentives.
Environmental Impact of Switching to Solar in South Monrovia Island
Lots of people want to do their part to help the planet, which for many is the main motivation to install a solar system.You may be asking yourself – how much does making the switch help the planet anyway? The average person has a rather large carbon footprint. Between their car, which produces over 10,000 pounds of carbon dioxide emissions a year, and energy for their home, it can be overwhelming to think about what to do. Switching to solar is a practical thing you can do to help.Although solar panel production emits carbon dioxide, the panels make up for it by greatly reducing the amount of CO2 you would have been responsible for if you still used nonrenewable energy. In South Monrovia Island, you can reduce your carbon footprint by 50 pounds a year with solar panels. If you want to do your part for the environment, you’ll no doubt recognize that there are many good things about adopting solar energy other than just saving money on bills. You can also help protect the environment, which some would argue is priceless.
EcoWatch's South Monrovia Island, CA Solar Company Rankings FAQs
Which solar company is the best in South Monrovia Island?
The top local solar company in South Monrovia Island is Altadena Energy & Solar, with a rating of 5.00 stars.
What are a few of the major pros and cons of going solar?
The biggest advantages of solar power are that it can lower or, for some, totally eradicate your electricity bills, raise your home’s value and lower your carbon footprint. The greatest disadvantages are that solar panels can be costly to install, you may not see as many savings 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 require a significant upfront investment that costs over ten thousand dollars, but whether or not solar panels are worth it depends on a range of factors like the cost of electricity near you and how much direct sunlight your roof gets.
How efficient are solar panels?
Most of the time, solar panels are about 15 to 25% efficient, meaning they can convert that percentage of the sun’s energy into usable electricity.
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.