15 Best Solar Companies in Monrovia, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Monrovia based on:
Customer review scores- Service area for Monrovia, CA
- Company policies and services offered
- Accreditations and certifications
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Average Monrovia homeowner saves $2,108/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Monrovia
Looking to go solar but not sure which company would be best for you? Although it can be difficult to decide on a solar company, the effort will pay off because going solar has many fantastic benefits. Fortunately, there are lots of solar companies in Monrovia thanks to encouraging government support and a growing clean energy market.
In this article, we’ll help you find the best companies in your area.Want to know how much you would pay to install a solar system on your roof? Click "get quote" below to get a free, no-obligation quote from a top-rated Monrovia 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
Best for Leasing
Sunrun
- 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 Monrovia
Altadena Energy & Solar
Informative Resources- Clear Pricing Policy
- Free Quotes
- Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation- Permit Assistance
- Battery Storage
Green Integrations and Management Inc.
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
SunGuide Solar Inc
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
AmeriGreen Solar
- Prompt Service Delivery
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Consultation
Powerfull Solar, Inc
- Free Quotes
- Informative Resources
- Reliable Customer Support
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Financing Assistance
- Permit Assistance
- Panel Installation
- Consultation
- Solar Carports
ProSolar California
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Battery Storage
- Tesla Powerwall
Solar Source
- Clear Pricing Policy
- Family-Operated Business
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Financing Assistance
- Permit Assistance
Helios Energy Global
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
SolarRepair
- Prompt Service Delivery
- Free Quotes
- Reliable Customer Support
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Financing Assistance
- Battery Storage
- Skilled Repairs
- Solar Panel Upgrades
- Cleaning and Maintenance
- Panel Installation
CERVUS Solar & Construction
- Informative Resources
- Prompt Service Delivery
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Consultation
- Skilled Repairs
- Financing Assistance
- Panel Installation
- Cleaning and Maintenance
- Battery Storage
REPOWER OC
- Reliable Customer Support
- Free Quotes
- Prompt Service Delivery
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
- Financing Assistance
SunSolar U.S.
- Reliable Customer Support
- Prompt Service Delivery
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Solar Carports
- Battery Storage
- Consultation
- Panel Installation
- Financing Assistance
- Permit Assistance
Imperial Solar
- Reliable Customer Support
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Consultation
- Grid-Tied Solar System
- Panel Installation
- Battery Storage
Renew Earth Solar
- Limited information available on website
Services Offered
- Battery Storage
- Consultation
- Grid-Tied Solar System
- Panel Installation
SYNRG Solar - Home Energy Solutions
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Consultation
Methodology: How We Ranked the Best Solar Companies in Monrovia
EcoWatch's solar experts analyzed each solar company in Monrovia 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 Monrovia
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 Monrovia
We know that for many homeowners, the choice to invest in solar rests on installation costs.There are a few factors you should consider when trying to figure out costs and your potential savings, including:
- How much sunlight your roof gets: This, plus the configuration of your roof, affects affect how much power your solar panels can generate.
- The make and model of solar panels you’re planning on getting: More efficient models cost more, so that will influence your budget for your solar project.
- Incentives: Those who buy and install a solar energy system this year can save 0 of their overall solar costs by taking advantage of the federal solar investment tax credit. You can also save about $25,000 on your energy bills over 20 years without incentives.
- Energy consumption: Installing a solar system may be too pricey an investment for families that don’t use too much energy a month.
So are solar panels worth it? Whether you’re trying to lower your electricity costs, carbon dioxide emissions or both, solar panels are a solid investment for many Monrovia homeowners.
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Solar Incentives in Monrovia
Because solar power is more sustainable than fossil fuels, there are various government incentives available to encourage people to make the switch.When you install a solar panel system on your house, you can take advatage of the federal tax credit, or ITC. This credit currently reduces your tax bill by 0 of the cost of your solar panels. In addition, there may often be some regional incentives that you can take advantage of to further cut back on the cost of solar of solar panels. In our article on solar incentives, you can see the incentives you qualify for in Monrovia.
Environmental Impact of Switching to Solar in Monrovia
An important reason so many homeowners are thinking of switching to solar power is to help bring down their environmental impact.Something many people might be asking themselves is how much can they really help protect the environment by going solar anyway? A key thing to be mindful of is your overall carbon footprint. For example, if you have a long commute, your footprint may be greater, so adopting solar energy for your house can help offset that.In Monrovia, the average household can lower their carbon footprint by 50 pounds a year once they go solar. If you want to do your part for the environment, you’ll no doubt get that there are many advantages to adopting solar energy other than just saving money on electricity. You can also help protect the environment, which some would argue is invaluable.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Monrovia, CA Solar Company Rankings FAQs
Which solar company is the best in Monrovia?
The top local solar company in Monrovia is Altadena Energy & Solar, with a rating of 5.00 stars.
What is the negative environmental impact of solar panel manufacturing?
Making solar panels requires chemicals and produces toxic waste that can be harmful for the environment, which is the main drawback of solar panels.
How long does it take for solar to pay for itself?
Solar panels usually pay for themselves in about 9.2 years, but your solar payback period will depend on your utility costs. The higher your typical electricity bill, the quicker your solar panel system will recoup your installation costs.
When is the best time of year to install solar panels?
Despite summer being the most popular time people install solar panels, the best time is actually winter. You can save money since there's decreased demand during the winter months, and it lets you be up and running with solar for the more expensive power bills you may get during the summer.
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.