15 Best Solar Companies in Hillsborough, CA (2024 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

Average Hillsborough homeowner saves $2,746/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 2024

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 Hillsborough

If you’re a home or business owner looking to capitalize on the solar incentives in Hillsborough, it can be challenging to narrow down which company to choose. But, it's worth it since switching to solar energy is often a good idea. Luckily, Hillsborough residents have access to tons of the best solar companies in the nation, all of which provide amazing value for generating clean energy.


In this article, we’ll help you narrow down the top options in your area.For an idea of how much you would have to pay to put up a solar panel system on your roof, you can get a free quote from one of the top solar companies in Hillsborough by clicking the "get quote" button below.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • 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 Hillsborough

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

SunPower

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

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation

Website: https://us.sunpower.com/
Address: 1414 Harbour Way S, Richmond, CA 94804
Phone: 5102608200
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Owens Electric & Solar

  • Pros icon Family-Operated Business
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

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

Website: https://www.owenselectricinc.com/
Address: 279 N Amphlett Blvd, San Mateo, CA 94401
Phone: 6503485727
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.7/5

SolarUnion

  • 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 Solar Panel Upgrades
  • Service icon Battery Storage
  • Service icon Skilled Repairs
  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation

Website: https://www.solarunion.com/
Address: 1700 Montgomery St Suite 108, San Francisco, CA 94111
Phone: 8888156633
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

All Bay Solar Construction

  • 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 Panel Installation
  • Service icon Tesla Powerwall

Website: http://www.allbaysolar.com/
Address: 5809 Mission St, San Francisco, CA 94112
Phone: 4156243535
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

CivicSolar, Inc

  • 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 Panel Installation
  • Service icon Battery Storage

Website: https://www.civicsolar.com/
Address: 304 12th St #3b, Oakland, CA 94607
Phone: 8004092257
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Occidental Power

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.oxypower.com/
Address: 5983 Mission St, Daly City, CA 94014
Phone: 4156818861
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

NEXT SOLAR

  • 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 Panel Installation
  • Service icon Consultation

Website: http://nextsolarinc.com/contact.html
Address: 1098 San Mateo Ave, South San Francisco, CA 94080
Phone: 6508226162
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.4/5

Semper Solaris

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

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

EcoWatch Rating

3.0/5

CITY SOLAR

  • 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

Website: http://citysolarca.com/
Address: 140 Richland Ave, San Francisco, CA 94110
Phone: 2092731605
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Solar Bill Review

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

Services Offered

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

Website: https://solarbillreview.com/
Address: 11501 Dublin Blvd STE 200, Dublin, CA 94568
Phone: 9258332641
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SolarLine SolarPanals

  • 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 Skilled Repairs
  • Service icon Cleaning and Maintenance

Website: https://www.topofthelinesolarpanel.com/
Address: 1266 9th Ave, San Francisco, CA 94122
Phone: 4154068791
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Solar Panel RoofNSave Alameda

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

Website: https://solarpanelroofnsavealameda.com/
Address: 1101 Marina Village Pkwy, Alameda, CA 94501
Phone: 5107512223
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Source Energy

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation

Website: https://sourcenergy.solar/
Address: 161 N Civic Dr #400, Walnut Creek, CA 94596
Phone: 9253196634
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

GRID Alternatives

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://www.gridalternatives.org/
Address: 1171 Ocean Ave UNIT 200, Oakland, CA 94608
Phone: 5107311310
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

Solar Technologies

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

Website: https://solartechnologies.com/
Address: 14 Beta Ct, San Ramon, CA 94583
Phone: 9259613756

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

For many homeowners, whether or not you should invest in a solar energy system boils down to the cost.Some important things that influence the upfront cost and potential savings over time include:

  • Choice of solar panels: The kind of solar panels you buy will affect your total cost. High-efficiency monocrystalline panels are more expensive upfront but can also lead to more savings over the lifetime of your system. If space isn't a constraint for your project, you can go with a higher number of more affordable panels.
  • The amount of sunlight your roof gets: This, plus your roof configuration, affects affect how much energy your solar panels can produce.
  • Incentives: The federal solar investment tax credit currently allows you to lower your taxes by 0 of the project cost. Your state and city may also have various incentives that you can use. Plus, you can save about $33,000 over 20 years on your utility bills, before factoring in incentives.
  • Your current power bills: Solar panels can greatly reduce, or totally eradicate, your utility bills. In Hillsborough, you can save an average of $1,538 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 benefit from solar incentives, all while helping preserve the planet.

Solar Savings Calculator for {{ solarcalc.name }}

If you're curious what your impact could be if you switch to solar, you can use the calculator below. You can also view our solar panel cost guide for Hillsborough, 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
Why leave {{ solarcalc.total_savings()|currency }} on the table? Help the environment and your wallet by switching to solar. SAVE NOW

Electricity rate:
{{ solarcalc.elec_cost/10 }} ¢
Shade:
{{ solarcalc.shade }} %
Time period:
{{ solarcalc.time_period }} years
System size:
{{ solarcalc.system_size }} kW
Additional Incentives:
{{ solarcalc.additional_incentives|currency }}

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 Hillsborough

If you’re considering making the switch to solar power, a variety of government incentives and state programs can greatly bring down the cost of the project and expedite the return on your investment.Local solar incentive programs depend on the location and, sometimes, utility company. Many states offer rebates for solar panels, in addition to the federal solar tax credit. For comprehensive information about incentives that apply to you, see our article on solar incentives.

Environmental Impact of Switching to Solar in Hillsborough

There are a few key reasons why homeowners are interested in solar energy: for the financial and environmental benefits.You may be wondering – how much do solar panels do for the environment anyway? The more energy your family uses, the better off the planet will be when you switch to solar as you won’t need to use as much nonrenewable energy.In fact, if you install solar panels, you could be looking at reducing your carbon dioxide emissions by about 50 pounds each year. As you can see, investing in solar has so many other perks besides saving money. One of the most important ones is that you can help save the Earth too.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Hillsborough, CA Solar Company Rankings FAQs

Which solar power company is the best in Hillsborough?

The highest-rated local solar company in Hillsborough is SunPower, with a rating of 4.50 stars.

What is the negative environmental impact of solar panels?

Manufacturing solar panels requires chemicals and produces toxic waste that can be harmful for the environment, which is the main negative thing about solar panels.

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

Solar panels generally pay for themselves in about 7.1 years, but your solar payback period will vary based on your utility costs. The more your typical power bill, the quicker your solar panel system will pay for itself.

How long do solar panels last?

On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger level of energy production.

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.