15 Best Solar Companies in Hillsborough, CA (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Hillsborough based on:
Customer review scores
Service area for Hillsborough, CA
Company policies and services offered
Accreditations and certifications
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Average Hillsborough homeowner saves $2,746/year with solar panels
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Best Solar Companies in Hillsborough
When deciding on the best solar panel companies, Hillsborough homeowners have more options than ever before, which can be a lot to consider, but we’re here to make adopting solar energy easier. Additionally, environmentally conscious leadership has stimulated a growing solar market, and plenty of the best solar companies are looking to capitalize on it. That's why Hillsborough provides many options for solar installers.
There are so many installers to consider, but in this article, we’ll help you narrow down your options by recommending some of the best solar companies in Hillsborough.To receive free quotes from the best solar companies in Hillsborough, you can click "get quote" below.
EcoWatch Rankings for Solar Companies in Hillsborough

Solar Bill Review
Prompt Service Delivery
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Consultation
Skilled Repairs
Battery Storage


TN Electrical and Solar Services
Free Quotes
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Cleaning and Maintenance
Panel Installation
Battery Storage
Solar Panel Upgrades
Grid-Tied Solar System
Consultation


Kingdom Solar
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Skilled Repairs
Panel Installation
Permit Assistance
System Decommissioning
Cleaning and Maintenance
Battery Storage

Amy's Roofing and Solar
Free Quotes
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Solar Carports
Financing Assistance
Solar Panel Upgrades
Panel Installation
Tesla Powerwall
Cleaning and Maintenance
Skilled Repairs

Bella Hem Solar, Inc.
Informative Resources
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Prompt Service Delivery
Limited information available on website
Services Offered
Battery Storage
Cleaning and Maintenance
Consultation
Panel Installation
Permit Assistance
Skilled Repairs


Infinium Solar, Inc.
Free Quotes
Clear Pricing Policy
Prompt Service Delivery
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
System Decommissioning
Solar Carports
Financing Assistance
Battery Storage

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


Allterra Solar
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Informative Resources
Limited information available on website
Services Offered
Battery Storage
Panel Installation
Consultation
Financing Assistance
Tesla Powerwall

Ambrose Solar
Reliable Customer Support
Clear Pricing Policy
Informative Resources
Free Quotes
Limited information available on website
Services Offered
Cleaning and Maintenance
Battery Storage
Financing Assistance
Permit Assistance
Panel Installation

NorthStar Solar Inc
Free Quotes
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Panel Installation

Highlight Solar
Clear Pricing Policy
Free Quotes
Informative Resources
Prompt Service Delivery
Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance
Battery Storage
Panel Installation
Permit Assistance
Methodology: How We Ranked the Best Solar Companies in Hillsborough
EcoWatch's solar experts analyzed each solar company in Hillsborough 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 Hillsborough
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 Hillsborough
The cost of installing a solar panel system has dropped immensely in the past few years, but it’s still a large investment for most homeowners.There are a few factors you should consider when trying to determine costs and your potential savings, including:
- The type of solar panels you have the money for: This is dependent on your income and budget.
- Your location: This affects 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. Aside from incentives, you can save an average of $33,000 over 20 years with your solar panels, too.
- Your household's power bills: Because of fairly high monthly power bills in Hillsborough, you could save about $1,500 a year with solar.
There are lots of great benefits of solar in spite of the upfront cost of installation. It can help the environment and your finances. Plus, it can raise the value of your home, leading to even more benefits if you want to sell your home later.
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Adopting green energy can substantially impact both the environment and your bills. To see how much, try out the calculator below. You can also view our solar panel cost guide for Hillsborough, CA.
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Solar Incentives in Hillsborough
If you’re considering switching to solar energy, various government incentives and subsidies can immensely lower your project costs and speed up the return on your investment.When you install solar panels on your house, you can take advatage of the federal tax credit, or ITC. This credit currently lowers your tax bill by 0 of the cost of your solar panels. In addition, there may often be some state and city incentives that you can benefit from to further cut back on the cost of solar of solar panels. You can learn about the incentives you can use in our article on solar incentives
Environmental Impact of Switching to Solar in Hillsborough
One of the best reasons to switch to solar energy is to cut your reliance on traditional energy sources like burning fossil fuels, which are damaging for the environment.A question many people might be asking themselves is how much can they really help protect the environment by switching to solar power anyway? If your home consumes lots of energy, you can have an even greater impact on the planet by switching to solar energy.In fact, if you adopt solar power, you could look forward to lowering your carbon dioxide emissions by about 50 pounds each year. As you can see, investing in solar has so many other benefits besides saving money. One of the major ones is that you can help save the planet too.
EcoWatch's Hillsborough, CA Solar Company Rankings FAQs
What is the most reputable solar installer in Hillsborough?
The best local solar company in Hillsborough is Solar Bill Review, with a rating of 5.00 stars.
What is the negative environmental impact of solar panels?
Solar panels can be detrimental for the environment when manufacturers use toxic chemicals in the manufacturing process. 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 for solar to pay for itself?
Solar panels typically pay for themselves in about 7.1 years, but your solar payback period will vary depending on your utility costs. The more your typical electricity bill, the quicker your solar panel system will pay for itself.
How long do solar panels last?
Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they should be disposed of. What this means is the amount of energy they produce will have decreased significantly after that point. You can choose to replace them after having 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.