15 Best Solar Companies in Du Page, IL (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Du Page based on:
Customer review scores
Service area for Du Page, IL
Company policies and services offered
Accreditations and certifications
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Average Du Page homeowner saves $1,120/year with solar panels
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Best Solar Companies in Du Page
As a homeowner in Du Page, you may be considering switching to solar and wondering about the best solar companies in your city. Solar could be a good idea since it comes with a lot of benefits. What's especially pushing a lot of readers toward going solar is their sizable energy bills that keep increasing each year.
If you’re planning on going solar, the first step to make is to find the best solar companies in Du Page and compare quotes. The good news is we took the time and compiled a list of the best solar companies for you.To help you know if solar panels are something you should get for your home, you can get a free, no-obligation quote from one of the best solar companies in Du Page by clicking the button below.
Best Solar Financing
Blue Raven Solar
- Industry-leading in-house financing
- Competitive pricing
- Excellent reputation
- Doesn't offer solar batteries
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch Rankings for Solar Companies in Du Page

SunPower by Sun N Us
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Consultation



WindSoleil Solar and Wind Energy Services
Informative Resources
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Off-Grid Solar Systems
Panel Installation
Grid-Tied Solar System
Battery Storage

FreeWorld Solar
Informative Resources
Free Quotes
Limited information available on website
Services Offered
Skilled Repairs
Consultation
Panel Installation
Battery Storage
Permit Assistance
Financing Assistance

ilumen Solar
Reliable Customer Support
Informative Resources
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Panel Installation
Grid-Tied Solar System
Permit Assistance
Cleaning and Maintenance
Financing Assistance
Skilled Repairs
Battery Storage
Consultation


Greenlink Energy Solutions
Prompt Service Delivery
Informative Resources
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Cleaning and Maintenance
Battery Storage
Financing Assistance
Panel Installation
Permit Assistance
System Decommissioning

Reficiency Solar
Reliable Customer Support
Informative Resources
Clear Pricing Policy
Limited information available on website
Services Offered
Battery Storage
Panel Installation
Consultation
Skilled Repairs


93Energy Solar
Clear Pricing Policy
Prompt Service Delivery
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
Permit Assistance
Cleaning and Maintenance
Battery Storage
Financing Assistance

RxSun
Free Quotes
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Cleaning and Maintenance
Panel Installation
Financing Assistance
Permit Assistance
Consultation

Certasun
Informative Resources
Reliable Customer Support
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Financing Assistance
Permit Assistance
Consultation
Battery Storage
Panel Installation

Kapital Electric, Inc.
Clear Pricing Policy
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Tesla Powerwall
Cleaning and Maintenance
Battery Storage
Panel Installation
Permit Assistance
Consultation

Methodology: How We Ranked the Best Solar Companies in Du Page
EcoWatch's solar experts analyzed each solar company in Du Page 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 Du Page
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 Du Page
When choosing a solar company, most homeowners or business owners think about the costs above all.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:
- Your income and budget: This determines what type of solar panels you can afford.
- average energy usage: The more power your household consumes on average and the higher your current power bills are, the more likely you'll benefit from making the switch to solar.
- Incentives: One thing that can reduce the cost of your solar project is the solar investment tax credit (ITC), which is a tax credit that’s equal to a percentage of the project cost. You can also save money on your energy bills, which can generate an average of $13,000 of savings over 20 years.
- How much sunlight your roof gets: If your roof gets limited direct sunlight, your solar system won’t be able to produce as much energy, which will give you lower savings on electricity bills than a house with a roof that gets a lot of sunlight.
Solar is a worthwhile investment for most homeowners. You can make your own power instead of paying for it from a utility company and make use of solar incentives and rebates, all while helping preserve the Earth.
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Solar Incentives in Du Page
If you’re considering making the switch to solar power, a number of government incentives and tax credits can dramatically reduce the installation costs and expedite the return on your investment.In addition to the federal tax credit incentive, there are also some state- and city-level benefits, which in almost all cases, can be claimed in addition to the federal incentive, so you can save even more. For comprehensive information about local incentives, see our article on solar incentives.
Environmental Impact of Switching to Solar in Du Page
One of the reasons so many people consider switching to solar power is to help bring down their environmental impact.A question many homeowners might have in mind is how much can they really help protect the environment by switching to solar power anyway? For those who want to help preserve the planet, switching to solar power is an easy choice, especially since Du Page produces a high amount of carbon dioxide emissions from its energy generation.Although solar panel production emits carbon dioxide, the panels make up for it by greatly reducing the amount of CO2 you would have released if you still used traditional energy. In Du Page, you can reduce your carbon footprint by 90 pounds a year with solar panels. For homeowners who care about the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.
Best Solar Financing
Blue Raven Solar
- Industry-leading in-house financing
- Competitive pricing
- Excellent reputation
- Doesn't offer solar batteries
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Du Page, IL Solar Company Rankings FAQs
Which solar installation company is the best in Du Page?
In Du Page, SunPower by Sun N Us is the most reputable local solar company. Our team of experts rates it 3.00 stars, so it's a solid choice if you're looking to install solar panels on your house.
Are solar panels really bad for the environment?
Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to recycle safely once they’ve reached the end of their lifespan. Making solar panels requires a lot of energy as well. The energy payback period is about 1 to 4 years.
How long does it take to see a return on your investment after buying solar panels?
Solar panels usually pay for themselves in about 18.8 years, but your solar payback period will depend on your utility costs. The higher your typical electricity bill, the quicker your solar panel system will pay for itself.
What is the efficiency of solar panels?
In most cases, solar panels are about 15 to 25% efficient, meaning they can convert that percentage of the energy from the sun into usable electricity.
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.