12 Best Solar Companies in Limestone, IL (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 12 in Limestone based on:
Customer review scores
Service area for Limestone, IL
Company policies and services offered
Accreditations and certifications
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Average Limestone homeowner saves $994/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Limestone
On the hunt for the top solar companies in Limestone? Installing a solar panel system is an exciting venture that many homeowners find beneficial for their wallets, communities and the planet. Over 20 years of offsetting your energy costs with a solar system, you can save about $12,000 on your electricity bills.
The cost of installing solar panels can vary substantially based on your home’s configuration and your overall energy needs.Keep reading to see our picks for the top solar companies in the city, or connect with a vetted solar company near you right away 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 Limestone

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

Sun Collectors
Clear Pricing Policy
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Grid-Tied Solar System
Panel Installation
System Decommissioning
Cleaning and Maintenance
Consultation

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

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

Route 66 Solar
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance
Grid-Tied Solar System
Panel Installation
System Decommissioning

SunPower by Legacy Solar, LLC
Clear Pricing Policy
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance
Panel Installation


WindSolarUSA, Inc.
Free Quotes
Informative Resources
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Consultation
Panel Installation
Grid-Tied Solar System
Permit Assistance
Financing Assistance

Skydrop Energy
Informative Resources
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Permit Assistance
Consultation
Cleaning and Maintenance
Panel Installation

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


EFS Energy
Informative Resources
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Consultation
Cleaning and Maintenance
Panel Installation
Financing Assistance
Methodology: How We Ranked the Best Solar Companies in Limestone
EcoWatch's solar experts analyzed each solar company in Limestone 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 Limestone
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 Limestone
For many readers, the decision of which solar installer to choose comes down to pricing.Some key factors that affect the cost of installing a solar panel system on your home and how much money you could save over time are:
- Energy consumption: Installing a solar system may be too steep of an option for homes that don’t need a good amount of energy per month.
- The kind of solar panels you’re planning on getting: More efficient panels have higher prices, so that will influence your budget for your solar project.
- The amount of sunlight your roof gets: If your rooftop doesn’t see much direct sunlight, your solar system won’t be able to produce as much energy, which will give you lower savings on electric bills than someone with a roof that gets plenty of sunlight.
- Incentives: Those who install a solar system this year can save 0 of their total solar spend by using the federal solar investment tax credit. You can also save about $12,000 on your energy bills over 20 years not including incentives.
Because of solar panels now being cheaper than ever as well as various solar incentives, they are a cost-effective investment for many homeowners.
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Adopting a renewable source of 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 Limestone, IL.
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Solar Incentives in Limestone
Because solar power is more sustainable than traditional energy sources, there are quite a few government incentives available to encourage its adoption.You qualify for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar panel system. You can also potentially stack the ITC with other local incentives. For more information about incentives that apply to you, see our article on solar incentives.
Environmental Impact of Switching to Solar in Limestone
If you’re considering adding solar panels to your home, one of the primary reasons why may be to reduce your carbon footprint.Something many homeowners might be thinking about is how much can they really help save the environment by going solar anyway? 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 switching to solar energy for your home can help offset that.Because solar panels don’t release CO2 emissions into the atmosphere when generating electricity, they’re a good swap for traditional energy sources. In fact, you could lower your carbon dioxide emissions by about 100 pounds each year. The benefits of solar power are abundant — just like solar power is! That's why so many homeowners have been happy with committing to solar.
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 Limestone, IL Solar Company Rankings FAQs
What is the best solar company in Limestone?
The top local solar company in Limestone is Sunrun Solar, with a rating of 4.70 stars.
What are the biggest advantages and disadvantages of switching to solar?
The main advantages of solar power are that it can reduce or, in some cases, totally eradicate your electricity bills, improve the value of your home and reduce your carbon footprint. The greatest disadvantages are that solar panels can be pricey to install, you may not save as much if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.
Are solar panels worth it?
Solar panels can be a great investment for a majority of homeowners, but frankly, they might not be worth it for everyone. If your home doesn't get enough sunlight or your energy bills are already reasonably low, solar panels might not be for you.
How efficient is a solar panel system?
Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating between 15 and 20%. If your panels are more efficient, you'll need fewer of them to meet your home's energy needs.
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.