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

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

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

Average Lafayette homeowner saves $2,768/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 Lafayette

Hoping to go solar but trying to figure out which company would be the best one for you? Although it can be hard to settle on a solar company, the search will pay off because going solar has many good perks. Solar power isn't just good for the planet — your bank account will benefit too. Once you switch to solar power, you can save an average of $33,000 over 20 years, and this doesn't even include incentives.

If you want to start making use of the many perks of solar, we can help you narrow down your options to find the Lafayette solar installer that's perfect for you. To get free quotes from the leading solar companies in Lafayette, click 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 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 Lafayette

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 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

4.4/5

SunPower Corporation

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

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

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

SunPower by The Solar Quote

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

Services Offered

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

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

EES Solar

  • Pros icon Informative Resources
  • 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 Business installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Energy storage 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 Elite Dealer - Impact

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

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

Source Energy

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

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

4.9/5

Wired Into The Future Inc.

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

Website: https://wiredintothefuture.com/
Address: 3330 Vincent Rd ste c, Pleasant Hill, CA 94523
Phone: 9258723408
Outstanding Local Installer
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EcoWatch Rating

4.9/5

NorthStar Solar Inc

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

Website: http://www.gonorthstarsolar.com/
Address: 822 Hartz Way STE 240, Danville, CA 94526
Phone: 9254007479
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Save a Lot Solar

  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • 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 Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Integrated roofing
  • Service icon Business installations

Website: https://www.savealotsolar.com/
Address: 1201 Tenth St, Berkeley, CA 94706
Phone: 8338765272
Outstanding Local Installer
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EcoWatch Rating

4.9/5

A1 Sun, Inc.

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • 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 Home installations
  • Service icon Integrated roofing
  • Service icon Tailored solutions

Website: http://www.a1suninc.com/
Address: 1455 Fourth St, Berkeley, CA 94710
Phone: 5105265715
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Got Watts?

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

Website: https://www.gotwatts.com/
Address: 2045 Commerce Ave, Concord, CA 94520
Phone: 9254210411
Outstanding Local Installer
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EcoWatch Rating

4.7/5

GRID Alternatives

  • Pros icon Informative Resources
  • 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 Energy storage solutions
  • Service icon Home installations
  • Service icon Integrated roofing

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

4.7/5

Bay Valley Solar Roofing

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

Website: https://www.bayvalleyroofing.com/
Address: 1820 Arnold Industrial Way Ste A, Concord, CA 94520
Phone: 9254286614
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Green Air

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

Services Offered

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

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

Methodology: How We Ranked the Best Solar Companies in Lafayette

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


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 Lafayette

Even though solar panels can help save you money on utility bills over time, it's important to take into consideration the startup costs. There are quite a few factors you should take into consideration when trying to figure out the overall cost and how much you can save, such as:

  • Your household's power bills: Based on the fairly high monthly electricity bills in Lafayette, you could save about $1,100 a year with solar.
  • Your city: This affects how much sunlight your roof gets, which helps determine how many panels you need.
  • Choice of solar panels: The type of solar panels you buy will affect your total cost. High-efficiency monocrystalline panels will cost more upfront but can also lead to more savings over the lifetime of your system. If you don't need to maximize efficiency, you can opt for a higher number of more affordable panels.
  • Incentives: The federal solar investment tax credit, which everyone qualifies for, allows you to deduct 30% of the cost of your solar system installation from your federal taxes. Additionally, not including incentives, you can save about $33,000 over 20 years on your energy bills.

Solar is a profitable investment for most homeowners. You can produce your own energy instead of paying for it from a utility company and make use of solar incentives, all while helping preserve the environment.

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Solar Incentives in Lafayette

Although solar power is typically a $15,000 to $25,000 investment, it can save you a substantial amount of money over several years because of smaller energy bills and government incentives. On top of the federal solar investment tax credit, there are also some state- and city-level incentives, which in the majority of cases, can be claimed in addition to the federal incentive, so you can save even more. Take a look at our article on solar incentives to learn what incentives are available to you.

Environmental Impact of Switching to Solar in Lafayette

Swapping traditional energy for solar is a powerful way to do your part for a cleaner and more sustainable future. You may be curious — how much do solar panels help the environment anyway? The average person has a sizable carbon footprint. Between their car, which is responsible for over 10,000 pounds of carbon dioxide emissions a year, and electricity for their home, it can be overwhelming to think about what to do. Going solar is a practical thing you can do to help. Once you go solar, your carbon emissions can be reduced by about 50 pounds every year. The good things about solar power are abundant — just like solar power is! That's why so many homeowners have been happy with making the switch 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 Lafayette, CA Solar Company Rankings FAQs

What is the most reputable solar installation company in Lafayette?

The best local solar company in Lafayette is SolarUnion, with a rating of 4.06 stars.

What are the pros and cons of going solar?

The main advantages of solar power are that it can lower or, in some cases, completely cut your electricity bills, raise the value of your home and bring down your carbon footprint. The main disadvantages are that solar panels can be expensive to install, you may not save as much if you don't use a lot of electricity and it doesn't work for all roof types and locations.

Is it worth installing solar panels on my home?

Solar panels can be a beneficial investment for lots of homeowners, but admittedly, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your power bills are already fairly low, solar panels might not be for you.

What is the best kind of solar panel?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. In regard to efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by the layout of your roof, your budget and desired energy output.

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.