15 Best Solar Companies in Larkspur, CA (2023 Reviews)

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

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

Average Larkspur homeowner saves $2,674/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated September 15, 2023

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 Larkspur

Getting the best solar panel installation company for your roof is a big decision, but it's one that can save you a lot of money in Larkspur. The average home can save $32,000 over 20 years when you use solar power. And because solar panels have a lifespan of about 25 to 30 years, you can save will be well above that overall.

Here, we'll make a list of some of the top solar companies in Larkspur to make your decision a bit easier. Keep reading to see our picks for the best solar companies in the city, or connect with a highly rated solar company in your area right away by clicking the 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 Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch Rankings for Solar Companies in Larkspur

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.4/5

SunPower Corporation

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

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Integrated roofing

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

4.1/5

High Definition Solar

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

Services Offered

  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Tailored solutions

Website: http://www.highdefinitionsolar.com/
Address: 1190 Burnett Ave, Concord, CA 94520
Phone: 9255668282
Outstanding Local Installer
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EcoWatch Rating

4.5/5

Solar Works

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

Services Offered

  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon End-to-end services

Website: http://www.solarworksca.com/
Address: 400c Morris St, Sebastopol, CA 95472
Phone: 7078298282
Outstanding Local Installer
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EcoWatch Rating

3.0/5

EES Solar

  • 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 Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Home installations
  • Service icon Expert panel installation

Website: http://www.ees-solar.com/
Address: 7700 Old Redwood Hwy, Cotati, CA 94931
Phone: 7077922947
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower Elite Dealer - Impact

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

Services Offered

  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Expert panel installation

Website: https://www.sunpowerquotenow.com/
Address: 3558 Round Barn Blvd, Santa Rosa, CA 95403
Phone: 7076151929
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Earthwise Energy

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

Services Offered

  • Service icon Skilled repairs
  • Service icon Energy storage solutions
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Expert panel installation

Website: https://www.earthwiseenergysolutions.com/
Address: 1501A San Anselmo Ave, San Anselmo, CA 94960
Phone: 8003966949
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

SonoMarin Solar & Electric

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

Services Offered

  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Skilled repairs

Website: http://sonomarinsolar.com/
Address: 675 Idylberry Rd, San Rafael, CA 94903
Phone: 4159855458
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Pegasus Solar

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

Services Offered

  • Service icon Professional reinstallation
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Tailored solutions

Website: http://www.pegasussolar.com/
Address: 506 W Ohio Ave, Richmond, CA 94804
Phone: 5102103797
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Pac Solar Corporation

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

Services Offered

  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Energy storage solutions
  • Service icon End-to-end services

Website: http://pacsolar.com/
Address: 118 Mitchell Blvd, San Rafael, CA 94903
Phone: 4152998989
Outstanding Local Installer
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EcoWatch Rating

4.3/5

Sunstall Inc.

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

Services Offered

  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Skilled repairs
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon End-to-end services

Website: http://www.sunstall.com/
Address: 384 Bel Marin Keys Blvd # 230, Novato, CA 94949
Phone: 4157070305
Outstanding Local Installer
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EcoWatch Rating

4.7/5

SolarUnion

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

Services Offered

  • Service icon Energy storage solutions
  • Service icon Skilled repairs
  • Service icon End-to-end services
  • Service icon Tailored solutions
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Business installations

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

4.1/5

SolarCraft

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

Services Offered

  • Service icon Home installations
  • Service icon End-to-end services
  • Service icon Skilled repairs
  • Service icon Expert panel installation
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Tailored solutions

Website: http://www.solarcraft.com/
Address: 8 Digital Dr #101, Novato, CA 94949
Phone: 4153827717
Outstanding Local Installer
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EcoWatch Rating

3.0/5

MCE

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Home installations

Website: https://www.mcecleanenergy.org/
Address: 1125 Tamalpais Ave, San Rafael, CA 94901
Phone: 8886323674
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.3/5

Heliodyne, Inc.

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

Services Offered

  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Home installations

Website: http://www.heliodyne.com/about_us/company/contact.html
Address: 4910 Seaport Ave, Richmond, CA 94804
Phone: 5102379614
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

A1 Sun, Inc.

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

Services Offered

  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation

Website: http://www.a1suninc.com/
Address: 1455 Fourth St, Berkeley, CA 94710
Phone: 5105265715

Methodology: How We Ranked the Best Solar Companies in Larkspur

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


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 Larkspur

Even though solar panels can save you a decent chunk of change on electricity bills over time, it's necessary to know the upfront costs. The installation cost is just one important factor you should bear in mind when looking into installing solar panels. How much it'll cost and how much you can save depend on things such as:

  • How much energy costs for you: The average household in Larkspur shells out around $1,100 a year on power alone, so you could end up with that much in savings.
  • Incentives: Those who purchase and install a solar system this year can save 30% of their total solar spend by using the federal solar investment tax credit. You can also save about $32,000 on your utility bills over 20 years not including incentives.
  • How much sunlight your roof gets: If your roof doesn't get a lot of direct sunlight, your solar system won't be able to generate as much energy, which will leave you with lower savings on electric bills than someone with a roof that gets lots of sunlight.
  • The model of solar panels you can buy: This depends on how much you're willing to invest upfront.

There are lots of great benefits of solar in spite of the initial cost of installation. It can help the Earth and your bank account. In addition, it can raise the value of your home, resulting in even more benefits if you choose to sell your home later.

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Solar Incentives in Larkspur

One of the benefits of installing a solar panel system is receiving incentives from the government. You are eligible for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar panel system. You can also possibly use the ITC with other state and city incentives. Check out our article on solar incentives to learn what incentives you can take advantage of.

Environmental Impact of Switching to Solar in Larkspur

Swapping traditional energy for solar is a great way to do your part for a more sustainable future. But how much can switching to solar actually affect the environment? One thing that can drastically affect your carbon footprint is your commute time and how much you drive in general. If you go solar and drive an electric car, you can greatly decrease your carbon dioxide emissions by charging your car at home. In Larkspur, the average household can lower their carbon footprint by 50 pounds a year after going solar. Since solar energy is renewable and generates electricity without a carbon footprint, adding solar panels to your home is one easy step you can take to help preserve the environment.

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 Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch's Larkspur, CA Solar Company Rankings FAQs

What is the best solar installation company in Larkspur?

In Larkspur, SolarUnion is the top local solar company. Our team of experts rates it 4.06 stars, so it's a good choice if you're planning to add solar panels to your house.

What is the negative environmental impact of making solar panels?

Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the manufacturing process. Chemicals can make solar panels difficult to dispose of safely once they've reached the end of their lifespan. Solar panel manufacturing 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 5.7 years, but your solar payback period will depend on your utility costs. The higher your typical energy bill, the quicker your solar panel system will pay for itself.

How much solar panel capacity do I need for my house?

Solar panel capacity is rated depending on how much power they generate under standard testing conditions. Since each panel can typically produce about 250 to 400 watts per hour, the average house will need 20 to 35 panels.

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.