15 Best Solar Companies in Maryville, IL (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Maryville based on:
Customer review scores
Service area for Maryville, IL
Company policies and services offered
Accreditations and certifications
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Average Maryville homeowner saves $1,037/year with solar panels
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Best Solar Companies in Maryville
As a homeowner in Maryville, you may be interested in switching to solar energy and curious about the best solar companies in your city. Solar could be a good choice since it comes with many benefits. Plus, environmentally conscious leadership has encouraged a growing solar market, and many of the best solar companies are looking to capitalize on it. That's why Maryville provides many options for solar installers.
In this article, we’ll let you in on the top Maryville solar installers so you can make the best decision for your home’s sustainable energy needs.We suggest shopping around for quite a few quotes and comparing them to see which is the best installer for your home. To get started with free, no-obligation quotes from vetted solar installers in Maryville, click the link below.
EcoWatch Rankings for Solar Companies in Maryville

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

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


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

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

EFS Energy
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Consultation
Panel Installation
Financing Assistance
Cleaning and Maintenance


Helio Solar Power, LLC.
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Informative Resources
Prompt Service Delivery
Limited information available on website
Services Offered
Panel Installation
Financing Assistance
Solar Carports
Battery Storage
Skilled Repairs
Cleaning and Maintenance

Solar city stl
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Financing Assistance
Permit Assistance
Consultation
Battery Storage
Panel Installation
Cleaning and Maintenance


Solar Luxury LLC
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Consultation
Skilled Repairs
System Decommissioning
Off-Grid Solar Systems

Sustainable Solar
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Battery Storage
System Decommissioning
Permit Assistance
Financing Assistance
Off-Grid Solar Systems
Grid-Tied Solar System
Panel Installation
Skilled Repairs



Purelight Power of St. Louis
Informative Resources
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Grid-Tied Solar System
Financing Assistance
Consultation
Panel Installation
Permit Assistance
Methodology: How We Ranked the Best Solar Companies in Maryville
EcoWatch's solar experts analyzed each solar company in Maryville 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 Maryville
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 Maryville
For most homeowners, whether or not to invest in solar energy boils down to the cost.There are quite a few factors you should consider when determining the overall cost and how much you can save, including:
- Incentives: The federal solar investment tax credit currently lets you reduce your taxes by 0 of the project cost. Your state and city may also have incentives and rebates that you can benefit from. Additionally, you can save about $12,000 over 20 years on your utility bills, not including incentives.
- Average daily sunlight: Since Maryville gets a decent amount of average daily sunlight, your solar panels can generally produce enough energy to power your whole home, which affects how much you can save on your energy bills.
- Electricity consumption: The average home in Maryville uses a decent amount of, and so may save on their energy bills.
- The model of solar panels you want to get: More high-tech panels are more expensive, so that will influence your budget for your solar project.
Although a solar panel system costs a decent chunk of money upfront, it can save you a considerable amount over time. The question of how much, though, depends on several factors, such as the size of your house and your local electricity rates.
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Solar Incentives in Maryville
In an effort to increase solar panel installation and usage, federal and local governments – and even some utility companies – offer incentives to help make solar power more economical and accessible.In addition to the federal solar investment tax credit, there are also some state- and city-level programs, which in most cases, stack with the federal incentive, so you get to save even more. Our article on solar incentives has more in-depth information on the incentives you can benefit from in Maryville.
Environmental Impact of Switching to Solar in Maryville
Lots of people want to do their part to help the environment, which in many cases is the main motivation to install a solar system.But – how much exactly can you help the planet by going solar? No matter where you are, you can help protect the planet by switching to solar energy, but homes that consume lots of energy will have an even greater impact.In Maryville, the average homeowner can reduce their carbon footprint by 100 pounds a year after going solar. For homeowners who care about the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.
EcoWatch's Maryville, IL Solar Company Rankings FAQs
Which solar installation company is the best near me?
The top local solar company in Maryville is Astrawatt Solar, with a rating of 5.00 stars.
What is the negative environmental impact of making 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 recycle safely once they’ve reached the end of their lifespan. Solar panel manufacturing requires 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?
The average payback period for solar panel installation is about 20.3 years, but the exact period is influenced by the cost of electricity where you are, incentives and net metering programs.
What is the efficiency of solar panels?
Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating of about 15 to 25%. If your panels are more efficient, you'll need less 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.