15 Best Solar Companies in Danville, CA (2024 Reviews)

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

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

Average Danville homeowner saves $2,768/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated May 20, 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 Danville

Do you want energy freedom in Danville? Installing solar panels can be a rewarding investment since you can take advantage of many benefits after adopting solar power. Solar power isn't just good for the Earth — your bank account will be better off 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.


To help you sort through the huge number of Danville solar installers, we’ve narrowed down a list of the top ones.To get an idea of how much you would pay to install a solar panel system on your roof, you can get a free quote from one of the top solar companies in Danville by clicking the "get quote" button below.

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

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch Rankings for Solar Companies in Danville

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

SunPower

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

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

SunPower by The Solar Quote

  • Pros icon Prompt Service Delivery
  • 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 Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Grid-Tied Solar System
  • Service icon Consultation

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

EcoWatch Rating

3.0/5

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 Financing Assistance
  • Service icon Panel Installation
  • Service icon Community Solar Projects

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

5.0/5

Source Energy

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

Services Offered

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

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

5.0/5

Solar Bill Review

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

Services Offered

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

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

4.8/5

NorthStar Solar Inc

  • 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 Battery Storage
  • Service icon Panel Installation

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

EcoWatch Rating

4.9/5

Got Watts?

  • Pros icon Prompt Service Delivery
  • 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 Financing Assistance
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Permit Assistance
  • Service icon Solar Panel Upgrades
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs

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

4.5/5

Solar Technologies

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

Website: https://solartechnologies.com/
Address: 14 Beta Ct, San Ramon, CA 94583
Phone: 9259613756
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Complete Solar

  • 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 Permit Assistance
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: https://www.completesolar.com/
Address: 3000 Executive Pkwy Suite 504, San Ramon, CA 94583
Phone: 8772994943
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.3/5

solarXperts

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://www.solarxperts.net/
Address: 2150 John Glenn Dr Suite 250, Concord, CA 94520
Phone: 8336997378
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.2/5

High Definition Solar

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

Services Offered

  • Service icon Panel Installation

Website: http://www.highdefinitionsolar.com/
Address: 1190 Burnett Ave, Concord, CA 94520
Phone: 8882031855
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Bay Valley Solar Roofing

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

Services Offered

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

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

EcoWatch Rating

4.6/5

Green Air and Solar

  • Pros icon Prompt Service Delivery
  • 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 Consultation
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Financing Assistance

Website: http://www.gogreenair.net/
Address: 3953 Industrial Way, Concord, CA 94520
Phone: 9252847336
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Your Energy Solutions

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System
  • Service icon Cleaning and Maintenance

Website: http://yourenergysolutions.com/
Address: 290 Rickenbacker Cir, Livermore, CA 94551
Phone: 8888880711
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.2/5

Semper Solaris

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

Website: https://www.sempersolaris.com/locations/bay-area/concord/
Address: 1990 Olivera Rd Suite E, Concord, CA 94520
Phone: 9258564242

Methodology: How We Ranked the Best Solar Companies in Danville

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


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 Danville

We know that for lots of homeowners, the choice to invest in solar highly depends on installation costs.Some significant things that influence the upfront cost and potential savings over time include:

  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you deduct 0 of your overall installation cost, your state or local government may offer additional tax exemptions, credits or rebates that will help you save even more. Not including incentives, you can save an average of $33,000 over 20 years with your system, too.
  • Whether or not your roof gets a lot of direct sunlight: This, plus how your roof is set up, affects affect how much energy your solar panels can make.
  • System size and type: Some models are more pricy than others, so the one you decide on can raise or lower your upfront cost. Plus, the more solar panels you need, the more it'll cost.
  • How much you spend on energy: The average family in Danville shells out around $1,500 a year on electricity alone, so you could end up with that much in savings.

There are several great benefits of solar even with the upfront cost of installation. It can help the environment and your finances. In addition, it can boost the value of your home, leading to even more benefits if you want to sell your home later.

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Solar Incentives in Danville

If you’re considering switching to solar energy, a variety of government incentives and subsidies can dramatically bring down the installation costs and expedite the return on your investment.Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of your project costs on your tax return, lowering the amount of taxes you owe that year. Plus, there may be some local incentives that can save you some extra money too. Our article on solar incentives has more detailed information on the incentives you can take advantage of in Danville.

Environmental Impact of Switching to Solar in Danville

There are a few important reasons why people want to invest in solar energy: to put more money in their bank account and to help the planet.But how much can switching to solar actually affect the environment? One thing you should consider is your overall carbon footprint. For example, if you spend lots of time commuting to work and have an electric vehicle, you can use solar energy for your home to power your EV and therefore help offset your carbon emissions.Once you go solar, your carbon emissions can be lowered by about 50 pounds every year. As you can see, using solar power has so many other perks besides saving money. One of the primary ones is that you can help save the environment too.

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

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's Danville, CA Solar Company Rankings FAQs

What is the most reputable solar panel installation company in Danville?

The best local solar company in Danville is SunPower, with a rating of 4.50 stars.

Are solar panels really good for the environment?

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

Is it worth installing solar panels on my home?

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

What is the best type 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 your roof configuration, how much you're willing to spend 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.