15 Best Solar Companies in Rosemead, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Rosemead based on:
Customer review scores
Service area for Rosemead, CA
Company policies and services offered
Accreditations and certifications
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Average Rosemead homeowner saves $2,108/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Rosemead
Getting the best solar panel installation company for your home is a huge decision, but it's one that can save you a lot of money in Rosemead. Because solar panels generate their own energy, they can greatly offset your electricity bill each month, if not totally eliminate it. In fact, you could end up with about $25,000 of savings over 20 years.
The cost of installing solar panels can change a lot based on your home’s infrastructure and your household energy usage.To get free quotes from the best solar companies in Rosemead, click the "get quote" button below.
EcoWatch Rankings for Solar Companies in Rosemead

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


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


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

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

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


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

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

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

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


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

Methodology: How We Ranked the Best Solar Companies in Rosemead
EcoWatch's solar experts analyzed each solar company in Rosemead 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 Rosemead
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 Rosemead
We get that for many homeowners, the decision to invest in solar rests on installation costs.A few important factors that dictate the cost of installing solar panels on your home and how much money you could save over time include:
- Incentives: Something that can make your solar project cost less is the solar investment tax credit (ITC), which is a tax credit that lets you deduct from your taxes a percentage of the project cost. You can also save money on your energy bills, which can result in an average of $25,000 of savings over 20 years.
- The amount of sunlight your roof gets: Thanks to Rosemead’s very high amount of average daily sunlight, you should be able to save a lot on your power bills.
- Your income and budget: This shapes what kind of solar panels you can get.
- Your current electric bills: Solar panels can noticeably lower, or totally get rid of, your utility bills. In Rosemead, you can save an average of $1,185 a month.
Solar is a fruitful investment for most homeowners. You can generate your own power instead of paying for it from the grid and take advantage of solar incentives, all while helping the Earth.
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Solar Incentives in Rosemead
There are several reasons why you should switch to solar. One of them consists of some government incentives you can take advantage of.On top of the federal tax credit incentive, there are also some state- and city-level benefits, which in the majority of cases, can be claimed in addition to the federal incentive, so you get to save even more. You can learn about the incentives you can take advantage of in our article on solar incentives
Environmental Impact of Switching to Solar in Rosemead
Switching to solar energy can have a beneficial effect on the environment.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Rosemead, though. One thing you should keep in mind is your overall carbon footprint. For example, if you spend lots of time commuting to work and have an electric vehicle, you can install solar panels on your home to power your EV and therefore help offset your carbon emissions.Since solar panels don’t release CO2 emissions into the atmosphere when producing electricity, they’re a good substitute for nonrenewable energy sources. In fact, you could reduce your carbon dioxide emissions by about 50 pounds each year. If you want to do your part for the environment, you’ll no doubt get that there are many benefits of adopting solar power other than just saving money on electricity. You can also help protect the environment, which some would argue is priceless.
EcoWatch's Rosemead, CA Solar Company Rankings FAQs
Which solar power company is the best near me?
The best local solar company in Rosemead is Altadena Energy & Solar, with a rating of 5.00 stars.
What are some of the major advantages and disadvantages of switching to solar?
The main advantages of solar power are that it can reduce or, for some, totally erase your electricity bills, improve your home’s value and lower your carbon footprint. The main disadvantages are that solar panels can be expensive to install, you may not see as many savings if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.
Is it worth installing solar panels on my house?
Solar panels can be a great investment for lots of homeowners, but honestly, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your electricity bills are already fairly low, solar panels might not be for you.
What is the best type of solar panel?
The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also cost more. Polycrystalline panels are cheaper but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other kinds can’t, like on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, roof layout and desired energy output.
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.