15 Best Solar Companies in South Barrington, IL (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in South Barrington based on:
Customer review scores
Service area for South Barrington, IL
Company policies and services offered
Accreditations and certifications
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Average South Barrington homeowner saves $1,132/year with solar panels
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Best Solar Companies in South Barrington
Hoping to go solar but not sure which solar panel installer would be best for you? Although it can be difficult to pick a solar company, the effort will pay off because going solar has many fantastic benefits. Over 20 years of offsetting your energy costs with solar panels, you can save about $13,000 on your electricity bills.
To help you sort through the huge variety of South Barrington solar installers, we’ve narrowed down a list of the top ones.Keep reading to see our picks for the top solar companies in the city, or get connected with a certified solar company near you right away by clicking the button below.
EcoWatch Rankings for Solar Companies in South Barrington

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



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

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


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


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

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

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

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

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


Phoenix Exteriors Roofing & Solar
Clear Pricing Policy
Free Quotes
Reliable Customer Support
Prompt Service Delivery
Informative Resources
Limited information available on website
Services Offered
Skilled Repairs
Panel Installation
Financing Assistance
Methodology: How We Ranked the Best Solar Companies in South Barrington
EcoWatch's solar experts analyzed each solar company in South Barrington 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 South Barrington
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 South Barrington
The cost of putting up solar panels has dropped greatly in the past few years, but it’s still a large investment for most homeowners.There are quite a few factors you should consider when determining how much it will cost and how much you can save, including:
- System size and type: Some models are more expensive than others, so the one you get can raise or lower your initial investment. Plus, the more solar panels you need to get, the more it'll cost.
- The amount of sunlight your house gets: Thanks to South Barrington’s high amount of average daily sunlight, you should be able to save a decent amount on your power bills.
- How much energy you use: If your family regularly uses a lot of energy, you'll reap more rewards from going solar.
- Incentives: Something that can make your solar project cost less 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 on your utility bills, which can give you an average of $13,000 of savings over 20 years.
As a result of solar panels decreasing in cost as well as local and federal solar incentives, they are a sound investment for the majority of homeowners.
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For an estimate of both how much you could save and help protect the Earth by switching to solar power, you can give the calculator below a try. You can also view our solar panel cost guide for South Barrington, IL.
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Solar Incentives in South Barrington
Since solar power is a cleaner source of energy than traditional energy sources, there are several government incentives in place to encourage its adoption.State and city solar incentives depend on the location and, sometimes, utility company. Many states offer rebates for solar power systems, in addition to the federal solar tax credit. You can learn about the incentives you can use in our article on solar incentives
Environmental Impact of Switching to Solar in South Barrington
There are lots of reasons to trade traditional energy for solar power, like saving money on electricity bills and helping to reduce your carbon footprint.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in South Barrington, though. For those who want to help cut back on greenhouse gas emissions, switching to solar power is a no-brainer, especially since South Barrington produces a high amount of carbon dioxide emissions from its energy generation.Since solar panels don’t release carbon dioxide emissions into the atmosphere when generating electricity, they’re a good substitute for traditional energy sources. In fact, you could expect to reduce your carbon dioxide emissions by about 90 pounds each year. If you want to do your part for the environment, you’ll likely understand that there are many good things about adopting solar power other than just saving money on bills. You can also help preserve the environment, which some would argue is priceless.
EcoWatch's South Barrington, IL Solar Company Rankings FAQs
What is the most reputable solar panel company in South Barrington?
The best local solar company in South Barrington is ilumen Solar, with a rating of 5.00 stars.
What are the advantages and disadvantages of solar power?
A few of the biggest pros are that it reduces your power bills, it’s environmentally friendly, and it provides a significant return on your investment (ROI). The most notable cons are that solar panels don’t work as well when there’s limited direct sunlight, they cost a lot upfront and solar panels can be an eyesore.
Is it worth installing solar panels on my home?
Solar panels can be a fruitful investment for lots of homeowners, but truthfully, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your power bills are already fairly low, solar panels might not be for you.
What are the different kinds of solar panels?
There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. As for 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 layout, 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.