15 Best Solar Companies in Thornton, IL (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Thornton based on:
Customer review scores- Service area for Thornton, IL
- Company policies and services offered
- Accreditations and certifications
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Average Thornton homeowner saves $1,132/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Thornton
On the hunt for the top solar companies in Thornton? Installing solar panels is an exciting venture that many homeowners find valuable for their wallets, communities and the planet. One of the advantages of residing in Thornton is you have access to plenty of the best solar panels and services in the nation.
To help you navigate through the large number of Thornton solar installers, we’ve narrowed down a list of the top ones.To help you understand 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 Thornton 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 Thornton
SunPower by Sun N Us
Informative Resources- Reliable Customer Support
- Free Quotes
- Clear Pricing Policy
Limited information available on website
Services Offered
Panel Installation- Consultation
WindSoleil Solar and Wind Energy Services
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Grid-Tied Solar System
- Battery Storage
- Off-Grid Solar Systems
FreeWorld Solar
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Skilled Repairs
- Battery Storage
- Consultation
- Financing Assistance
- Panel Installation
- Permit Assistance
Illinois Solar Express, LLC
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Panel Installation
- Permit Assistance
JD Pro Electric Inc
- Informative Resources
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Panel Installation
- Skilled Repairs
ilumen Solar
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Financing Assistance
- Grid-Tied Solar System
- Skilled Repairs
- Battery Storage
- Cleaning and Maintenance
- Consultation
- Permit Assistance
- Panel Installation
Reficiency Solar
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Skilled Repairs
- Consultation
93Energy Solar
- Reliable Customer Support
- Prompt Service Delivery
- Free Quotes
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Permit Assistance
- Panel Installation
- Financing Assistance
- Cleaning and Maintenance
Semper Solr
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
- Consultation
RxSun
- Reliable Customer Support
- Clear Pricing Policy
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Panel Installation
- Permit Assistance
- Battery Storage
- Consultation
- Financing Assistance
Certasun
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Battery Storage
- Permit Assistance
- Consultation
- Panel Installation
Ailey Solar Electric, Inc.
- Informative Resources
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Consultation
Kapital Electric, Inc.
- Informative Resources
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Permit Assistance
- Panel Installation
- Battery Storage
- Tesla Powerwall
- Consultation
- Cleaning and Maintenance
Windfree Solar Co
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Consultation
- Battery Storage
- Panel Installation
Summit Solar
- Informative Resources
- Limited information available on website
Services Offered
- Grid-Tied Solar System
- Panel Installation
Methodology: How We Ranked the Best Solar Companies in Thornton
EcoWatch's solar experts analyzed each solar company in Thornton 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 Thornton
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 Thornton
For many readers, the decision of which solar installer to choose comes down to costs.A few key factors that determine how much it will cost to install solar panels on your home and how much money you could save over time are:
- The type of solar panels you can buy: This depends on how much you’re willing to spend upfront.
- Incentives: One thing that can make your solar project cost less is the solar investment tax credit (ITC), which is a tax credit that lets you deduct from your taxes a percentage of the project cost. You can also save on your power bills, which can result in an average of $13,000 of savings over 20 years.
- Average daily sunlight: Since Thornton 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 your electricity bills will be.
- Electricity consumption: The average household in Thornton uses a decent amount of, and so may save on their energy bills.
Though a solar panel system costs a decent chunk of money upfront, it can save you thousands of dollars in the long term. The question of how much, though, depends on a number of factors, like the size of your house and your current power bills.
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Adopting solar energy can significantly impact both the environment and your utility bills. To see how much, use the calculator below. You can also view our solar panel cost guide for Thornton, IL.
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Solar Incentives in Thornton
Since solar power is a cleaner source of energy than traditional energy sources, there are various government incentives in place to encourage its adoption.In addition to the federal tax credit incentive, there are also some local incentives, which in the majority of cases, can be claimed in addition to the federal incentive, so you can save even more. For more information about local incentives, visit our article on solar incentives.
Environmental Impact of Switching to Solar in Thornton
One of the best reasons to switch to solar energy is to cut your dependence on nonrenewable energy sources like burning fossil fuels, which are hazardous for the environment.But how much can installing solar panels actually help the environment? A significant thing to think about is your overall carbon footprint. For example, if you spend a lot of time driving to work, your footprint may be larger, so adopting solar power for your home can help offset that.Once you go solar, your carbon emissions can be lowered by about 90 pounds a year. As you can see, investing in solar has so many other perks apart from saving money. One of the major ones is that you can help save the Earth too.
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 Thornton, IL Solar Company Rankings FAQs
What is the top solar installer in Thornton?
In Thornton, SunPower by Sun N Us is the best local solar company. Our team of experts rates it 3.00 stars, so it's a great choice if you're planning on installing solar panels on your roof.
What is the negative environmental impact of solar panels?
Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the manufacturing process. Chemicals can make solar panels difficult to dispose of safely once they’ve reached the end of their lifespan. Making solar panels 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 usually pay for themselves in about 18.6 years, but your solar payback period will vary depending on your utility costs. The higher your typical electricity bill, the faster your solar panel system will pay for itself.
How long do solar panels last?
On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but efficiency goes down by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher amount of energy production.
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.