15 Best Solar Companies in O'Fallon, IL (2024 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, IL
  • Company policies and services offered
  • Accreditations and certifications

Average O'Fallon homeowner saves $1,219/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 2024

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in O'Fallon

If you’re a homeowner looking to make use of the solar incentives in O'Fallon, it can be difficult to narrow down which installer to decide on. But, the process is worth it since adopting solar energy is typically a good idea. The average home can save $14,000 over 20 years when you use solar power. And because solar panels have a lifespan of about 25 to 30 years, your total cost savings will be well above that overall.


Here, we’ll make a list of some of the best solar companies in O'Fallon to make your choice a bit easier.To get a sense of what it could cost to install solar panels on your roof, you can click the button below to be connected to a certified installer near you.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0

  • 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 O'Fallon

Best Local Installer
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EcoWatch Rating

4.9/5

Route 66 Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Residential Panels
  • Service icon Energy Efficiency Audit

Website: https://route66solar.com/
Address: 2110 Troy Rd Suite B1, Edwardsville, IL 62025
Phone: 6189001280
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Pyramid Electrical Contractors, Inc.

  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Panels
  • Service icon Maintenance
  • Service icon EV Charger
  • Service icon Full-Service
  • Service icon Skilled Repairs
  • Service icon Residential Panels
  • Service icon Emergency Services

Website: http://www.pyramidelectrical.com/
Address: 300 Monticello Pl, Fairview Heights, IL 62208
Phone: 6186321180
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Astrawatt Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Tesla Powerwall
  • Service icon Residential Panels
  • Service icon Consultation

Website: https://www.astrawatt.solar/
Address: 222 S Meramec Ave Suite 202-1100, St. Louis, MO 63105
Phone: 8779374786
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Streib Company

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Full-Service
  • Service icon Residential Panels
  • Service icon Commercial Panels

Website: http://streibco.com/
Address: 9225 Watson Industrial Park, St. Louis, MO 63126
Phone: 3144877474
Outstanding Local Installer
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EcoWatch Rating

4.9/5

StraightUp Solar of St. Louis

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Tesla Powerwall
  • Service icon Commercial Panels
  • Service icon Maintenance
  • Service icon EV Charger
  • Service icon Residential Panels
  • Service icon Battery Storage

Website: https://straightupsolar.com/st-louis-city-county/
Address: 11696 Lilburn Park Rd, St. Louis, MO 63146
Phone: 3142182663
Outstanding Local Installer
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EcoWatch Rating

4.2/5

EFS Energy

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Maintenance

Website: https://efsenergy.com/
Address: 1283 Research Blvd, St. Louis, MO 63132
Phone: 3147715131
Outstanding Local Installer
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EcoWatch Rating

3.0/5

five stars electric and solar LLC

  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels

Website: https://five-stars-electric-and-solar-llc.business.site/
Address: 3725 michigan ave Chesterfield Missouri Fenton Missouri University City, 3725 Michigan Ave, St. Louis, MO 63118
Phone: 3146857515
Outstanding Local Installer
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EcoWatch Rating

4.9/5

SunSent Solar

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance
  • Service icon Residential Panels

Website: https://www.sunsent.com/
Address: 1710 Scherer Pkwy, St Charles, MO 63303
Phone: 6367573083
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Solar city stl

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance
  • Service icon Battery Storage
  • Service icon Commercial Panels
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Residential Panels
  • Service icon Permit Assistance

Website: https://solarcitystl.com/
Address: 3636 S Geyer Rd #100, St. Louis, MO 63127
Phone: 6365154895
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Solar Luxury LLC

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon Residential Panels
  • Service icon Off-Grid Solar Systems
  • Service icon System Decommissioning

Website: http://www.solarluxurystl.com/
Address: 11252 Midland Blvd Apt 106, St. Louis, MO 63114
Phone: 3143377071
Outstanding Local Installer
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EcoWatch Rating

3.0/5

BKJ Solar

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels

Website: http://bkjsolar.com/
Address: 907 Harbor Oaks Ct, Hazelwood, MO 63031
Phone: 3148995527
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Helio Solar Power, LLC.

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance
  • Service icon Skilled Repairs
  • Service icon Solar Carports
  • Service icon Battery Storage
  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Financing Assistance

Website: http://www.heliosolarpower.com/
Address: 119 S Main St, St Charles, MO 63301
Phone: 8884243546
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Purelight Power of St. Louis

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Commercial Panels
  • Service icon Financing Assistance
  • Service icon Permit Assistance
  • Service icon Residential Panels

Website: https://purelightpower.com/st-louis-solar-installation/
Address: 12747 Olive Blvd Suite 302, St. Louis, MO 63141
Phone: 3145826129
Outstanding Local Installer
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EcoWatch Rating

3.0/5

AKA Solar LLC

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Panels
  • Service icon Consultation
  • Service icon Residential Panels

Website: http://www.akasolarusa.com/
Address: 119 S Main St, St Charles, MO 63301
Phone: 3143148925
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Purcell Electric Company Inc

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Family-Operated Business
  • Con icon Limited information available on website

Services Offered

  • Service icon Solar Panel Upgrades
  • Service icon Skilled Repairs
  • Service icon Emergency Services
  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Maintenance

Website: http://purcellelectricco.com/
Address: 106 W Main St #1518, Salem, IL 62881
Phone: 6185488145

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 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 O'Fallon

When picking a solar company, most homeowners or business owners wonder about the costs above all.There are a few factors you should consider when trying to figure out the overall cost and how much you can save, including:

  • The amount of sunlight your rooftop gets: Thanks to O'Fallon’s high amount of average daily sunlight, you should be able to save a decent amount on your power bills.
  • 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 $14,000 over 20 years with your solar panels, too.
  • Choice of solar panels: The kind of solar panels you want will affect your total cost. High-efficiency monocrystalline panels will cost more upfront but can also lead to more savings over the lifetime of your system. If space isn't a constraint for your project, you can go with a higher number of more affordable panels.
  • Energy consumption: Installing a solar system may be a high-cost investment for homes that don’t need too much energy a month.

There are many good benefits of solar even with the upfront cost of installation. It can help the planet and your finances. In addition, it can boost the value of your home, giving you even more benefits if you want to sell your home later.

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Solar Incentives in O'Fallon

Because solar power is better for the environment than burning fossil fuels, there are several government incentives available to encourage people to make the switch.You can 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 state and city incentives. You can learn about the incentives you can take advantage of in our article on solar incentives

Environmental Impact of Switching to Solar in O'Fallon

There are a few main reasons why many people are considering solar energy: to help their wallet and the environment.Something many people might be wondering about is how much can they really help protect the environment by switching to solar power anyway? A key thing to be mindful of is your overall carbon footprint. For example, if your commute is very long, your footprint may be larger, so switching to solar power for your home can help offset that.After you go solar, your carbon footprint can be lowered by about 100 pounds a year. As you can see, going solar has so many other rewards apart from saving money. One of the most important ones is that you can help save the planet too.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's O'Fallon, IL Solar Company Rankings FAQs

What is the most reputable solar panel company in O'Fallon?

The best local solar company in O'Fallon is Route 66 Solar, with a rating of 4.90 stars.

Are solar panels actually good for the environment?

Solar panels can be detrimental for the environment when manufacturers use toxic chemicals in the construction. 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?

The average payback period for solar panel installation is about 17.3 years, but the exact period depends on the cost of electricity where you are, incentives and net metering programs.

How long do solar panels last?

Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is the amount of energy they produce will have decreased by about 0.8% each year since installing them. You can decide to replace them once you've had them for that long or you can keep using them at a lower efficiency after that time.

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.