15 Best Solar Companies in Willowbrook, IL (2024 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 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 Willowbrook

As a homeowner or business owner in Willowbrook, you may be considering switching to solar power and wondering about the best solar companies in your area. Solar could be a fantastic choice since it has many benefits. Due to its moderate amount of average daily sunlight, Willowbrook has a good amount of solar growth, so many of the best solar companies in the nation have expanded to there to help residents switch over to renewable energy.


In this article, we’ll introduce you to the top Willowbrook solar installers so you can make the best decision for your home’s sustainable energy needs.To see how much you might pay to install a solar panel system on your roof, you can get a free quote from one of the top solar companies in Willowbrook by clicking the "get quote" button below.

Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

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 Willowbrook

Best Local Installer
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EcoWatch Rating

3.0/5

SunPower by Sun N Us

  • 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 Panel Installation
  • Service icon Consultation

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

5.0/5

Illinois Solar Express, LLC

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

Services Offered

  • Service icon Panel Installation
  • Service icon Permit Assistance

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

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

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

JD Pro Electric Inc

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

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance

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

4.7/5

Ailey Solar Electric, Inc.

  • 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 Consultation
  • Service icon Panel Installation

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

4.6/5

WindSoleil Solar and Wind Energy Services

  • 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 Grid-Tied Solar System
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Off-Grid Solar Systems

Website: http://www.windsoleil.com/
Address: 401 N Trumbull Ave # D, Chicago, IL 60624
Phone: 2243074057
Outstanding Local Installer
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EcoWatch Rating

4.7/5

Kapital Electric, Inc.

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

Services Offered

  • Service icon Permit Assistance
  • Service icon Panel Installation
  • Service icon Tesla Powerwall
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Battery Storage

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

3.0/5

Windy City Solar Group

  • 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 Panel Installation

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

5.0/5

FreeWorld Solar

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

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

3.0/5

Unity Solar Group

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Off-Grid Solar Systems
  • Service icon Consultation
  • Service icon Panel Installation

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

4.8/5

RxSun

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

Website: https://rxsun.com/
Address: 2211 N Elston Ave Suite 208, Chicago, IL 60614
Phone: 8006079786
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.7/5

Windfree Solar Co

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

Website: https://www.windfree.us/
Address: 5022 W Foster Ave, Chicago, IL 60630
Phone: 3125886953
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Sunset Solar

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

Services Offered

  • Service icon Permit Assistance
  • Service icon Consultation
  • Service icon Panel Installation

Website: https://www.sunsetsolarinc.com/
Address: 1415 W 22nd St Tower Floor - Suite 3, Oak Brook, IL 60523
Phone: 8006097281
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SolarShift

  • 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 Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Community Solar Projects
  • Service icon Panel Installation

Website: http://www.mysolarshift.com/
Address: 1244 State St, Lemont, IL 60439
Phone: 6307802936
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Vantage Home Solar Illinois

  • 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 System Decommissioning
  • Service icon Panel Installation

Website: http://www.vantagehomesolar.com/
Address: 65 Eisenhower Ln S, Lombard, IL 60148
Phone: 8334733611

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 choosing a solar company, most homeowners or business owners worry about the costs the most.The installation cost is just one important factor you should take into account when looking into installing solar panels. How much it'll cost and how much you can save depend on things including:

  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 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. Aside from incentives, you can save an average of $13,000 over 20 years with your solar system, too.
  • Your current electric bills: Solar panels can significantly reduce, or totally get rid of, your utility bills. In Willowbrook, you can save an average of $1,156 a month.
  • System size and type: Some models are more expensive than others, so the one you choose can raise or lower your upfront cost. Plus, the more solar panels you need, the more it'll cost.
  • Average daily sunlight: Since Willowbrook gets a decent amount of average daily sunlight, your solar panels can generally generate enough energy to power your whole home, which affects how much you can save on your energy bills.

So is a solar panel system worth it? Whether you’re trying to reduce your energy bills, carbon emissions or both, solar panels are a good investment for many Willowbrook homeowners.

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Solar Incentives in Willowbrook

Since solar power is better for the environment than fossil fuels, there are some government incentives available to encourage people to make the switch.When you install solar panels on your house, you can claim the federal tax credit, or ITC. This credit currently lets you lower your tax bill by 0 of the cost of your solar panels. In addition, there are often some state and city incentives that you can take advantage of to further save. In our article on solar incentives, you can see the incentives you qualify for in your area.

Environmental Impact of Switching to Solar in Willowbrook

There are a few key reasons why many people are considering solar energy: to help their wallet and the environment.But how much can switching to solar actually affect the environment? Adopting solar power is a great choice for the environment, due to the fact that the greatest source of greenhouse gas emissions in the country is from burning fossil fuels for electricity, heat, and transportation – all of which can be powered by solar instead.When you go solar, your carbon footprint can be cut by about 90 pounds each year. Since solar energy is plentiful and produces electricity without CO2 emissions, adding solar panels to your home is one easy step you can take to help protect the environment.

Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

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 Willowbrook, IL Solar Company Rankings FAQs

Which solar power company is the best near me?

The top local solar company in Willowbrook is SunPower by Sun N Us, with a rating of 3.00 stars.

What are some of the pros and cons of adopting solar power?

A few of the biggest pros are that it lets you spend less on your power bills, it’s environmentally friendly, and it gives you a significant return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, the startup costs are high and solar panels can be an eyesore.

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

Solar panels generally pay for themselves in about 19.0 years, but your solar payback period will vary based on your utility costs. The more your typical electricity bill, the faster your solar panel system will pay for itself.

What are the different kinds 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, your budget and how much energy generation you want.

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.