15 Best Solar Companies in Gillespie, IL (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Gillespie based on:

  • Customer review scores
  • Service area for Gillespie, IL
  • Company policies and services offered
  • Accreditations and certifications

Average Gillespie homeowner saves $1,340/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Updated January 24, 2025

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 Gillespie

Looking for energy freedom in Gillespie? Installing solar panels can be a rewarding project since there are lots of perks when you go solar. Plus, the solar industry is thriving in Gillespie, giving homeowners access to some of the most respected solar panel installers in the country.


As you begin your search for the best solar companies in Gillespie, you’ll notice that there are a great number of providers to choose from. So, we’ve organized a carefully curated list of the top solar companies in the area.Read on to see our picks for the top solar companies in the city, or get connected to a certified solar company near you right away by clicking the button below.

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EcoWatch Rankings for Solar Companies in Gillespie

Best Local Installer
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EcoWatch Rating

5.0/5

Astrawatt 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 Panel Installation
  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Tesla Powerwall
  • Service icon Battery Storage

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

Route 66 Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon System Decommissioning
  • Service icon Financing Assistance

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

4.9/5

StraightUp Solar of St. Louis

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Cleaning and Maintenance

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

4.9/5

SunSent Solar

  • Pros icon Free Quotes
  • 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 Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Skilled Repairs
  • Service icon Panel Installation

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

4.9/5

Streib Company

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

Services Offered

  • Service icon Panel Installation

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

4.3/5

EFS Energy

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Cleaning and 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

Purcell Electric Company Inc

  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs
  • Service icon Panel Installation

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

3.0/5

WindSolarUSA, Inc.

  • 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 Consultation
  • Service icon Grid-Tied Solar System
  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Financing Assistance

Website: https://windsolarusa.com/
Address: 104 N 6th St, Springfield, IL 62701
Phone: 2178254206
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Helio Solar Power, LLC.

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Solar Carports

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

Solar city stl

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

Services Offered

  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Battery Storage

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

Skydrop Energy

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

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: http://www.skydropenergy.com/
Address: 24049 Burr Oaks Ln, Athens, IL 62613
Phone: 2175569269
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 Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs

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

3.0/5

Solar Luxury LLC

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Off-Grid Solar Systems
  • Service icon System Decommissioning
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Consultation

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

Services Offered

  • Service icon Panel Installation

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

AKA Solar LLC

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: http://www.akasolarusa.com/
Address: 119 S Main St, St Charles, MO 63301
Phone: 3143148925

Methodology: How We Ranked the Best Solar Companies in Gillespie

EcoWatch's solar experts analyzed each solar company in Gillespie 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 Gillespie


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 Gillespie

We know that for lots of homeowners, the decision to invest in solar hinges on installation costs.The installation cost is just one important factor you should keep in mind when looking into installing solar panels. How much it'll cost and how much you can save depend on things including:

  • Incentives: Tax-paying citizens who buy and install a solar system this year can save 0 of their overall solar costs by using the federal solar investment tax credit. You can also save about $16,000 on your energy bills over 20 years excluding incentives.
  • How much sunlight your roof gets: If your roof gets limited direct sunlight, your solar panel system won’t be able to make as much energy, which will give you lower savings on energy bills than a house with a roof that gets plenty of sunlight.
  • System size and type: Some models are more pricy than others, so the one you decide on can raise or lower your initial investment. Plus, the more solar panels you need to buy, the more it'll cost.
  • How much energy costs for you: If your local power rates are quite high, there's a better chance you'll end up with a higher return on your investment in a solar system. In Gillespie, you can save an average of $851 a month on your electricity bills.

There are several good benefits of solar in spite of the initial cost of installation. It can help the environment and your wallet. Plus, it can raise the value of your home, leading to even more benefits if you choose to sell your home later.

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Solar Incentives in Gillespie

Because solar power is a cleaner source of energy than burning fossil fuels, there are various 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 pair the ITC with other state and city rebates and benefits. For comprehensive information about incentives for homeowners in Gillespie, see our article on solar incentives.

Environmental Impact of Switching to Solar in Gillespie

One of the most compelling reasons to tap into solar power is to decrease your reliance on nonrenewable energy sources like burning fossil fuels, which are damaging for the environment.But you may be curious – how much exactly can you help by going solar? For homeowners who want to do their part for the planet, switching to solar power is an easy decision, especially since Gillespie produces a very high amount of carbon dioxide emissions from its energy generation.Although solar panel manufacturing releases carbon dioxide emissions, the panels make up for it by considerably decreasing the amount of CO2 you would have been responsible for if you still used traditional energy. In Gillespie, you can reduce your carbon footprint by 100 pounds a year with solar panels. Since solar power is plentiful and produces electricity without a carbon footprint, installing solar panels is one easy step you can take to help protect the environment.

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EcoWatch's Gillespie, IL Solar Company Rankings FAQs

What is the best solar installation company in Gillespie?

The best local solar company in Gillespie is Astrawatt Solar, with a rating of 5.00 stars.

What are a few of the main advantages and disadvantages of going solar?

A few of the biggest pros are that it decreases your electricity bills, it’s good for the environment, and it can give you a decent return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, the startup costs are high and solar panels aren’t always aesthetically pleasing.

How long does it take for solar to pay for itself?

The average payback period for solar panel installation is about 15.7 years, but the exact period depends on the cost of electricity where you are, incentives and net metering programs.

What is solar panel capacity and how much do I need for my house?

Solar panel capacity is the amount of energy the panels can produce under ideal conditions (a sunny day around noon). The average household has to get between 20 and 35 panels to account for their typical energy usage.

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.