15 Best Solar Companies in Castroville, CA (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Castroville based on:

  • Customer review scores
  • Service area for Castroville, CA
  • Company policies and services offered
  • Accreditations and certifications

Average Castroville homeowner saves $2,903/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Castroville

Hoping to obtain energy freedom in Castroville? Installing solar panels can be a rewarding investment since you can take advantage of many benefits after adopting solar power. Because solar panels produce their own electrical power, they can greatly offset your electricity bill each month, if not entirely eliminate it. In fact, you could end up with about $34,000 of savings over 20 years.


Here, we’ll give you a list of some of the top solar companies in Castroville to make your choice a little easier.We suggest shopping around for multiple quotes and comparing them to figure out which is the best installer for your home. To get started with free quotes from vetted solar companies in Castroville, click the link below.

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EcoWatch Rankings for Solar Companies in Castroville

Best Local Installer
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EcoWatch Rating

5.0/5

TN Electrical and Solar Services

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Grid-Tied Solar System
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Solar Panel Upgrades

Website: http://www.tnsolars.com/
Address: 1150 Murphy Ave #240, San Jose, CA 95131
Phone: 4082293632
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Allterra Solar

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Tesla Powerwall
  • Service icon Consultation

Website: http://www.allterrasolar.com/
Address: 125-B McPherson St, Santa Cruz, CA 95060
Phone: 8314252608
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Infinium Solar, Inc.

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Solar Carports
  • Service icon Panel Installation
  • Service icon System Decommissioning
  • Service icon Battery Storage
  • Service icon Financing Assistance

Website: https://www.infiniumsolar.com/
Address: 1190 Dell Ave ste o, Campbell, CA 95008
Phone: 4085838101
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Sandbar Solar & Electric

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: https://sandbarsc.com/
Address: 2656 Mission St, Santa Cruz, CA 95060
Phone: 8314698888
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Highlight Solar

  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://www.highlightsolar.com/
Address: 1624 Remuda Ln, San Jose, CA 95112
Phone: 8669269997
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Monarch Home Services (Salinas)

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

Website: https://www.monarchhomeexperts.com/
Address: 485 Victor Way Number 12, Salinas, CA 93907
Phone: 8312784940
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Cinnamon Energy Systems

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Tesla Powerwall
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Financing Assistance
  • Service icon Solar Panel Upgrades
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Battery Storage

Website: https://www.cinnamon.energy/
Address: 809 University Ave, Los Gatos, CA 95032
Phone: 4088837000
Outstanding Local Installer
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EcoWatch Rating

4.5/5

Soleeva

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.soleeva.com/
Address: 1918 Junction Ave, San Jose, CA 95131
Phone: 8338208080
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Sunternal

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Tesla Powerwall
  • Service icon Permit Assistance
  • Service icon Panel Installation

Website: http://www.sunternalsolar.com/
Address: 5671 Santa Teresa Blvd #105, San Jose, CA 95123
Phone: 8002740901
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Clean Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Consultation
  • Service icon Tesla Powerwall
  • Service icon Financing Assistance

Website: http://www.cleansolar.com/
Address: 1445 Koll Cir, San Jose, CA 95112
Phone: 8885517652
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Semper Solaris

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Battery Storage
  • Service icon Financing Assistance

Website: https://www.sempersolaris.com/locations/bay-area/
Address: 2505 Amaral Ct, Hayward, CA 94544
Phone: 6502032589
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Nomadic Solar

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Solar Panel Upgrades
  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://mynomadicsolar.com/
Address: 1146 Soquel Ave #4203, Santa Cruz, CA 95062
Phone: 8312220119
Outstanding Local Installer
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EcoWatch Rating

3.0/5

FMJ Electric, Inc.

  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs

Website: http://www.fmjelectric.com/
Address: 1628 N Main St Unit 143, Salinas, CA 93906
Phone: 8312290891
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Bright World

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

Website: http://www.brightworld.com/
Address: 1620 E, Oakland Rd Suite 107, San Jose, CA 95131
Phone: 8337866922
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Quality Home Services

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Battery Storage
  • Service icon Tesla Powerwall
  • Service icon Cleaning and Maintenance

Website: https://www.qualityhomeservices.com/
Address: 11485 Commercial Pkwy Ste. 10, Castroville, CA 95012
Phone: 8009858103

Methodology: How We Ranked the Best Solar Companies in Castroville

EcoWatch's solar experts analyzed each solar company in Castroville 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 Castroville


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 Castroville

For the majority of homeowners, whether or not to invest in solar panels depends the most on the cost.Some key things that impact how much it will cost and how much you could save include:

  • Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, allows you to deduct 0 of the cost of installing your solar panel system from your federal taxes. Plus, not including incentives, you can save about $34,000 over 20 years on your energy bills.
  • Your income and budget: This guides what kind of solar panels you can purchase.
  • Your home's orientation toward the sun: This, along with the configuration of your roof, affects affect how much power your solar panels can produce.
  • Energy consumption: Installing solar panels may be an expensive option for homes that don’t consume too much energy per month.

Solar is a fruitful investment for most homeowners. You can produce your own energy instead of paying for it from the grid and take advantage of solar incentives, all while helping preserve the environment.

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Solar Incentives in Castroville

If you’re considering making the switch to solar power, various government incentives and solar rebates can drastically lower the cost of the project and expedite the return on your investment.There are several federal, state and local rebates and tax credits that earn anywhere from 0 to 50% of your money in return after installing a solar panel system. Check out our article on solar incentives to find out what incentives are available to you.

Environmental Impact of Switching to Solar in Castroville

One of the most compelling reasons to tap into solar power is to minimize your reliance on traditional energy sources like burning fossil fuels, which are hazardous for the environment.You may be trying to figure out – how much does making the switch do for the planet anyway? In a place like Castroville where commute times can be pretty long, going solar can help help reduce the carbon footprint of being on the road a lot.Because solar panels don’t release CO2 emissions into the atmosphere when producing electricity, they’re a good substitute for traditional energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 50 pounds each year. As you can see, going solar has so many other perks besides saving money. One of the main ones is that you can help save the environment too.

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EcoWatch's Castroville, CA Solar Company Rankings FAQs

What is the best solar panel installation company in Castroville?

The highest-rated local solar company in Castroville is TN Electrical and Solar Services, with a rating of 5.00 stars.

What is the negative environmental impact of solar panels?

Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Making solar panels needs a lot of energy as well. The energy payback period is about 1 to 4 years.

How long does it take to see a return on your investment after getting solar panels?

Solar panels typically pay for themselves in about 6.7 years, but your solar payback period will depend on your utility costs. The higher your typical electricity bill, the faster your solar panel system will pay for itself.

When is the best time of year to install solar panels?

Despite summer being the most popular time people install solar panels, the ideal time is actually winter. You can save money since there's less 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.