15 Best Solar Companies in O'Fallon, MO (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in O'Fallon based on:
Customer review scores- Service area for O'Fallon, MO
- Company policies and services offered
- Accreditations and certifications
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Average O'Fallon homeowner saves $1,295/year with solar panels
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Best Solar Companies in O'Fallon
When deciding on the best solar installers, O'Fallon homeowners have more providers to choose from than ever before, which can be too much to get a handle on, but we’re here to make switching to solar power easier. Plus, the solar industry is thriving in O'Fallon, giving homeowners access to some of the best solar panel installers in the country.
As you begin your search for the best solar companies in O'Fallon, you might notice that there are a lot of providers to choose from. So, we’ve accumulated a curated list of the top solar companies in the area.Interested in seeing how much it’d cost to install solar panels on your roof? Click "get quote" below to get a free, no-obligation quote from a top O'Fallon solar installer.
EcoWatch Rankings for Solar Companies in O'Fallon
Astrawatt Solar
Clear Pricing Policy- Informative Resources
- Reliable Customer Support
- Free Quotes
Limited information available on website
Services Offered
Tesla Powerwall- Consultation
- Battery Storage
- Panel Installation
- Permit Assistance
SunSent Solar
- Reliable Customer Support
- Informative Resources
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
- Skilled Repairs
- Battery Storage
- Financing Assistance
- Cleaning and Maintenance
StraightUp Solar of St. Louis
- Clear Pricing Policy
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
- Grid-Tied Solar System
- Consultation
- Battery Storage
- Cleaning and Maintenance
- Financing Assistance
Streib Company
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Route 66 Solar
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- System Decommissioning
- Financing Assistance
- Grid-Tied Solar System
EFS Energy
- Reliable Customer Support
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Financing Assistance
- Panel Installation
- Consultation
Helio Solar Power, LLC.
- Reliable Customer Support
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Battery Storage
- Panel Installation
- Skilled Repairs
- Financing Assistance
- Solar Carports
Solar city stl
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Consultation
- Financing Assistance
- Panel Installation
- Permit Assistance
- Battery Storage
Pyramid Electrical Contractors, Inc.
- Limited information available on website
Services Offered
- Skilled Repairs
- Panel Installation
- Cleaning and Maintenance
Solar Luxury LLC
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Off-Grid Solar Systems
- Skilled Repairs
- Panel Installation
- System Decommissioning
- Consultation
Sustainable Solar
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- System Decommissioning
- Grid-Tied Solar System
- Skilled Repairs
- Panel Installation
- Permit Assistance
- Battery Storage
- Off-Grid Solar Systems
- Financing Assistance
AKA Solar LLC
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
BKJ Solar
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Purelight Power of St. Louis
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Financing Assistance
- Grid-Tied Solar System
- Permit Assistance
- Consultation
- Panel Installation
five stars electric and solar LLC
- Limited information available on website
Services Offered
- Panel Installation
Methodology: How We Ranked the Best Solar Companies in O'Fallon
EcoWatch's solar experts analyzed each solar company in O'Fallon 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 O'Fallon
Below are some the criteria we examined specifically for Missouri 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 O'Fallon
We know that for many homeowners, the decision to invest in solar hinges on installation costs.There are quite a few factors you should take into consideration when trying to figure out how much it will cost and how much you can save, such as:
- Typical energy usage: The more power your household consumes on average and the higher your current energy bills are, the more benefits you’ll see from going solar.
- Your income and budget: This affects what kind of solar panels you can purchase.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 0 of your total installation cost, your local government may offer additional tax exemptions, credits or rebates that will help you save even more. Not including incentives, you can save an average of $15,000 over 20 years with your solar system, too.
- Average daily sunlight: Since O'Fallon 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.
Solar is a valuable investment for most homeowners. You can generate your own electricity instead of paying for it from a utility company and make use of solar incentives and rebates, all while helping the Earth.
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For an idea of both how much you could save and help protect the Earth by switching to solar power, you can play around with the calculator below. You can also view our solar panel cost guide for O'Fallon, MO.
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Solar Incentives in O'Fallon
Although installing solar panels is typically a $15,000 to $25,000 investment, it can save you a substantial amount of money over many years due to reduced energy bills and government incentives.There are several federal, state and local rebates and tax credits that can earn you a decent amount of money back after installing a solar panel system. In our article on solar incentives, you can see the incentives you qualify for in O'Fallon.
Environmental Impact of Switching to Solar in O'Fallon
One of the best reasons to use solar power is to minimize your reliance on traditional energy sources like burning fossil fuels, which are destructive for the environment.A question many people might be wondering about is how much can they really help the environment by switching to solar power anyway? In a city like O'Fallon where energy use is rather high, installing solar panels is a good plan for households who are eco-conscious.Once you go solar, your carbon dioxide emissions can be reduced by about 100 pounds a year. As you can see, using solar power has so many other benefits apart from saving money. One of the main ones is that you can help save the environment too.
EcoWatch's O'Fallon, MO Solar Company Rankings FAQs
Which solar company is the best near me?
In O'Fallon, Astrawatt Solar is the top local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're looking to install solar panels on your house.
What are the pros and cons of solar power?
The advantages of solar power are that it can decrease or, for some, completely eradicate your electricity bills, raise the value of your home and lower your carbon footprint. The greatest disadvantages are that solar panels can be costly to install, you may not see as many savings if you don’t use a lot of electricity and whether you can install solar panels depends on your roof configuration.
Is it worth installing solar panels on my home?
Solar panels can be a beneficial 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 reasonably low, solar panels might not be for you.
How long do solar panels last?
On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a larger level 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.