15 Best Solar Companies in Willowbrook, IL (2023 Reviews)

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

  • Customer review scores
  • Service area for Willowbrook, IL
  • Company policies and services offered
  • Accreditations and certifications

Average Willowbrook homeowner saves $1,107/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 Willowbrook

Finding the right solar panel installation company for your home is a huge decision, but it's one that can save you a lot of money in Willowbrook. While solar power is a great investment, you'll be able to make that money back and then some, all while helping to protect the planet. In fact, you could be looking at saving about $13,000 over 20 years.

There are plenty of installers to choose from, but in this article, we'll help you pin down your options by recommending some of the best solar companies in Willowbrook. To get an estimate of what it would cost to install solar panels on your roof, you can click the button below to be connected to a certified installer near you.

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 Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

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 Willowbrook

Best Local Installer
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EcoWatch Rating

4.6/5

SunPower by Sun N Us

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

Website: https://www.sunpowerbysunnus.com/
Address: 1400 E Touhy Ave Unit 255, Des Plaines, IL 60018
Phone: 8337866878
Outstanding Local Installer
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EcoWatch Rating

3.0/5

YellowLite

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

Website: https://yellowlitechicago.business.site/
Address: 9981 W 190th Pl Unit K-1, Mokena, IL 60448
Phone: 8004908726
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Illinois Solar Express, LLC

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

Services Offered

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

Website: https://illinoissolarexpress.com/
Address: 1 Mid America Plaza 3rd Floor, Oakbrook Terrace, IL 60181
Phone: 7738767676
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Windy City Solar Group

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

Website: https://www.windycitysolargroup.com/
Address: 1546 Cuyler Ave, Berwyn, IL 60402
Phone: 7087378114
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Service Solar Solutions

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

Website: http://www.solar-napervilleil.com/
Address: 1001 E Chicago Ave, Naperville, IL 60540
Phone: 6304267224
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Reficiency Solar

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

Website: https://reficiency.com/
Address: 4513 Lincoln Ave # 110, Lisle, IL 60532
Phone: 6307800951
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Dominion Lighting & 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 Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions

Website: http://www.dominion.solar/
Address: 650 W Grand Ave Suite 207, Elmhurst, IL 60126
Phone: 6304814122
Outstanding Local Installer
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EcoWatch Rating

4.9/5

JD Pro Electric Inc

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

Services Offered

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

Website: http://www.jdproelectric.com/
Address: 9230 Grand Ave, Franklin Park, IL 60131
Phone: 8479162052
Outstanding Local Installer
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EcoWatch Rating

4.0/5

Unity Solar Group

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

Website: http://unitysolargroup.com/
Address: 1111 22nd St ste 240b, Oak Brook, IL 60523
Phone: 8337437676
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Greencore Solar, Inc.

  • 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 Home installations
  • Service icon Tailored solutions

Website: https://www.greencoresolar.com/
Address: 955 Lively Blvd, Wood Dale, IL 60191
Phone: 3127615505
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Ailey Solar Electric, Inc.

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

Website: http://aileysolarelectric.com/
Address: 1965 W Pershing Rd, Chicago, IL 60609
Phone: 7734921294
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Solar Power Midwest, Inc.

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

Website: https://solarpowermidwest.com/
Address: 103 Frances St, Lockport, IL 60441
Phone: 3093813381
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Kapital Electric, Inc.

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

Services Offered

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

Website: https://www.kapitalelectric.com/
Address: 1270 Mark St, Bensenville, IL 60106
Phone: 6308332389
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Safeguard Solar LLC

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • 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 Expert panel installation
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Tailored solutions

Website: https://www.safeguardsolarllc.com/
Address: 2819 Village Green Dr, Aurora, IL 60504
Phone: 3312260866
Outstanding Local Installer
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EcoWatch Rating

4.9/5

FreeWorld Solar

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

Website: https://www.freeworldrenewables.com/
Address: 1212 N Ashland Ave 2nd floor, Chicago, IL 60622
Phone: 3125857761

Methodology: How We Ranked the Best Solar Companies in Willowbrook

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


Below are some the criteria we examined specifically for Illinois 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 Willowbrook

When deciding on a solar company, most homeowners or business owners worry about the costs above all. The cost and possible savings vary depending on some key factors such as:

  • Your energy consumption: If your household needs to use a lot of energy, you'll reap more rewards from switching to solar.
  • Your income and budget: This determines what model of solar panels you can purchase.
  • How much sunlight your roof gets: If your roof doesn't see much direct sunlight, your solar panel system won't be able to make as much energy, which will leave you with lower savings on electric bills than someone with a roof that gets lots of sunlight.
  • Incentives: Those who buy and install a solar system this year can save 30% of their solar installation costs by using the federal solar investment tax credit. You can also save about $13,000 on your utility bills over 20 years excluding incentives.

Though a solar panel system costs a good chunk of money upfront, it can save you a considerable amount over the lifespan of your panels. The question of how much, though, depends on several factors, including the kind of solar panels you get and your current power bills.

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Solar Incentives in Willowbrook

There are many reasons why adopting solar power is beneficial. One of them consists of some government incentives you can take advantage of. State and city solar incentives depend on the location and, sometimes, utility company. A lot of states offer rebates for solar power systems, in addition to the federal solar tax credit. Our article on solar incentives has more detailed information on the incentives you can take advantage of in Willowbrook.

Environmental Impact of Switching to Solar in Willowbrook

There are a few main reasons why homeowners want to invest in solar energy: to put more money in their bank account and to help the planet. You may be asking yourself — how much do solar panels help the environment anyway? One thing that can drastically shape your carbon footprint is your commute time and how much you drive overall. If you go solar and drive an electric car, you can vastly lower your carbon dioxide emissions by charging your car at home. While solar panel manufacturing releases carbon dioxide emissions, the panels make up for it by significantly decreasing the amount of CO2 you would have produced if you still used nonrenewable energy. In Willowbrook, you can reduce your carbon footprint by 90 pounds a year with solar panels. As you can see, investing in solar has so many other benefits besides saving money. One of the primary ones is that you can help save the environment 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 Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best Warranty Coverage

ADT Solar

★★★★★
4.0

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

EcoWatch's Willowbrook, IL Solar Company Rankings FAQs

What is the top solar panel company in Willowbrook?

The top local solar company in Willowbrook is ilumen Solar, with a rating of 4.01 stars.

What is the negative environmental impact of solar panel manufacturing?

Solar panels can be harmful for the environment when manufacturers use toxic chemicals when they're made. Chemicals can make solar panels difficult to dispose of safely once they've reached the end of their lifespan. Solar panel manufacturing uses 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 13.8 years, but your solar payback period will depend on your utility costs. The more your typical electricity bill, the faster your solar panel system will pay for itself.

What are the different types of solar panels?

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, 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.