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

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

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

Average Fairfield homeowner saves $2,761/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 Fairfield

If you're a homeowner looking to make use of the solar incentives in Fairfield, it can be difficult to narrow down which company to choose. But, it's worth it since adopting solar power is often a great idea. With very high levels of average daily sunlight in Fairfield, the solar industry is booming. An overlooked driver of this has been national and statewide programs that support residential and commercial solar panel installation.

The cost of installing solar panels can vary considerably depending on your home's layout and your household energy needs. 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, no-obligation quotes from vetted solar panel companies in Fairfield, click the link 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 Fairfield

Best Local Installer
ecowatch badge icon

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 Integrated roofing
  • Service icon Tailored solutions
  • Service icon Home installations

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

4.4/5

SunPower Corporation

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

4.5/5

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

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

Services Offered

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

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 by The Solar Quote

  • Pros icon Clear Pricing Policy
  • 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 Business installations
  • Service icon Energy storage solutions
  • Service icon Integrated roofing
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Home installations

Website: http://www.sunpowerbythesolarquote.com/
Address: 2819 W March Ln #154, Stockton, CA 95219
Phone: 8889446765
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower Elite Dealer - Impact

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

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

3.0/5

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

Website: https://www.sunrun.com/solar-by-state/ca/sacramento-california-solar
Address: 1215 Striker Ave Ste 120, Sacramento, CA 95834
Phone: 9165475250
Outstanding Local Installer
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EcoWatch Rating

4.5/5

Legacy Electrical Service & Construction

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • 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 Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations

Website: https://www.legacyelectricalservice.com/
Address: 21 Commerce Pl Suite B, Vacaville, CA 95687
Phone: 7074744800
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Westhaven Power

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

Website: http://www.westhavenpower.com/
Address: Vacaville, CA 95688, CA 95688
Phone: 8552767496
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Ambrose Solar

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

Website: http://www.ambrosesolar.com/
Address: 820 Eubanks Dr Suite A, Vacaville, CA 95688
Phone: 7079998036
Outstanding Local Installer
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EcoWatch Rating

3.0/5

RW Solar and Electric

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

Services Offered

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

Website: https://www.rwsolarandelectric.com/
Address: 845 Davis St, Vacaville, CA 95687
Phone: 7077246426
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Solano Solar Cleaning LLC

  • Pros icon Informative Resources
  • 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 Home installations
  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Energy storage solutions

Website: https://www.facebook.com/solanosolarcleaning
Address: 942 Cedarcrest Dr, Vacaville, CA 95687
Phone: 7076461859
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Sun America Solar

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

Services Offered

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

Website: http://sunamericasolar.org/
Address: 1512 Spyglass Pkwy, Vallejo, CA 94591
Phone: 7077664899
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Certified Solar, Heating & Air Conditioning

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

Services Offered

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

Website: https://certifiedheatingandairconditioning.com/
Address: 5040 Commercial Cir unit c, Concord, CA 94520
Phone: 9254123300
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Green Air

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

Services Offered

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

Website: http://www.gogreenair.net/
Address: 3953 Industrial Way, Concord, CA 94520
Phone: 9252847336

Methodology: How We Ranked the Best Solar Companies in Fairfield

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


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 Fairfield

For many people, the decision of which solar company to go with depends on prices. The cost of solar and the savings it generates vary depending on a few key factors such as:

  • How much sunlight your roof gets: This, and the configuration of your roof, affects affect how much power your solar panels can produce.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you receive a tax credit curretnly worth 30% 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. Excluding incentives, you can save an average of $33,000 over the first 20 years with your system, too.
  • Your power bills: This will affect how much you can save. In Fairfield, the average resident can save about $1,100 a year on their electricity bills.
  • The make and model of solar panels you're planning on getting: Higher-efficiency panels are more highly priced, so that will shape your budget for your solar project.

Solar is a worthwhile investment for most homeowners. You can make your own electricity instead of paying for it from a utility company and make use of solar tax credits and rebates, all while helping preserve the planet.

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Solar Incentives in Fairfield

If you're planning on switching to solar energy, several government incentives and state programs can greatly bring down the cost of the project and speed up the return on your investment. These incentives typically include cash rebates, tax credits and/or solar renewable energy credits. They can cut how much you end up spending on going solar by 30%, upwards of 50% in some cases. In our article on solar incentives, you can read about the incentives you qualify for in your area.

Environmental Impact of Switching to Solar in Fairfield

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 destructive for the environment. But how much can using solar energy instead of traditional energy actually affect the environment? Something that can dramatically influence your carbon footprint is your commute time and how much you drive altogether. If you install solar panels and drive an electric car, you can significantly lower your carbon dioxide emissions by charging your car at home. In fact, if you make the switch to solar power, you could be looking at reducing your carbon dioxide emissions by about 50 pounds each year. The benefits of solar power are infinite — just like solar power is! That's why so many people have been happy with committing to solar.

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 Fairfield, CA Solar Company Rankings FAQs

Which solar power company is the best near me?

The top local solar company in Fairfield is Sunflower Electric ,Llc, with a rating of 3.00 stars.

What are the pros and cons of solar power?

The advantages of solar power are that it can decrease or, in some cases, 100% erase your electricity bills, raise your home's value and lower your carbon footprint. The disadvantages are that solar panels can be costly to install, you may not save as much if you don't use a lot of electricity and whether you can install solar panels depends on your roof configuration.

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

The average payback period for solar panel installation is about 5.5 years, but the exact period varies by the cost of electricity where you are, incentives and net metering programs.

What are the different kinds of solar panels?

The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also more costly. Polycrystalline panels are less expensive but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other kinds can't, such as on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, roof configuration and how much efficiency you're looking for.

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.