15 Best Solar Companies in Alhambra, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Alhambra based on:
Customer review scores
Service area for Alhambra, CA
Company policies and services offered
Accreditations and certifications
Please enter a valid 5-digit zip code!
Average Alhambra homeowner saves $2,318/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Alhambra
Thinking of going solar but want to know which solar panel installer would be the best one for you? Although it can be challenging to decide on a solar company, the search will pay off because going solar has many good perks. After 20 years of offsetting your energy costs with a solar system, you can save about $28,000 on your utility bills.
If you want to take advantage of the great amount of benefits of solar, we’ll help you narrow down your options to find the Alhambra solar installer that’s perfect for you.To get an idea of how much it might cost to put solar panels on your roof, you can click the button below to be connected to a certified installer near you.
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 Alhambra

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


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

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

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



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

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

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

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

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


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

Methodology: How We Ranked the Best Solar Companies in Alhambra
EcoWatch's solar experts analyzed each solar company in Alhambra 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 Alhambra
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 Alhambra
For many people considering switching to solar, the decision of which solar installer to hire depends on pricing.The overall price and potential savings vary depending on a few key factors such as:
- System size and type: Some models are more costly than others, so the one you choose can raise or lower your initial investment. Plus, the more solar panels you need, the more it'll cost.
- Your location: This influences how much sunlight your roof receives, which helps determine how many panels you need.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 0 of your total installation cost, your state or local government may offer additional tax exemptions, credits or rebates that can help you save even more. Not including incentives, you can save an average of $28,000 over 20 years with your solar panels, too.
- Your power bills: This will dictate your savings. In Alhambra, the average resident can save about $1,200 a year on their electricity bills.
There are several great benefits of solar despite the initial cost of installation. It can help the planet and your bank account. Additionally, it can increase the value of your home, leading to even more benefits if you decide to sell your home later.
Solar Savings Calculator for {{ solarcalc.name }}
Use the calculator below to see how much installing a solar panel system could help the planet and your wallet. You can also view our solar panel cost guide for Alhambra, CA.
{{ solarcalc.time_period|number:0 }} -year savings | {{ solarcalc.total_savings()|currency }} |
Estimated cost | {{ solarcalc.array_cost() | currency }} |
Estimated incentives | {{ solarcalc.incentive_savings() | currency }} |
Payback period | {{ solarcalc.payback_period()|number:1 }} years |
CO2 emissions prevented | {{ solarcalc.CO2_total()|number:0 }} lbs |
Miles driven equivalent | {{ solarcalc.CO2_total()/0.78|number:0 }} mi |
Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.
Solar Incentives in Alhambra
If you’re thinking about making the switch to solar power, various government incentives and tax credits can immensely reduce your project costs and speed up the return on your investment.Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which will allow you to claim 0 of how much you paid for your solar installation when you file taxes, reducing the amount of taxes you owe that year. In addition, there may be some state and city incentives that can save you some extra money too. Our article on solar incentives goes over more information on the incentives you can find in Alhambra.
Environmental Impact of Switching to Solar in Alhambra
Switching to solar energy can have a positive effect on the environment.You may be wondering – how much does going solar help the environment anyway? One thing to 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 use solar energy for your home to power your EV and therefore help offset your carbon emissions.In fact, if you adopt solar power, you could look forward to lowering 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 advantages to adopting solar power 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 Alhambra, CA Solar Company Rankings FAQs
What is the most reputable solar installer in Alhambra?
In Alhambra, Altadena Energy & Solar is the best local solar company. Our team of experts rates it 5.00 stars, so it's a good choice if you're looking to add solar panels to your home.
What is the negative environmental impact of making solar panels?
Solar panels can be bad for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to dispose of safely once they’ve reached the end of their lifespan. Making solar panels uses a lot of energy as well. The energy payback period is about 1 to 4 years.
How long does it take for solar to pay for itself?
The average payback period for solar panel installation is about 8.4 years, but the exact period depends on local electricity costs, incentives and net metering programs.
How often do solar panels have to be replaced?
Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is how much energy they produce will have decreased significantly after that point. You can decide to replace them once you've had them for that long or you can keep using 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.