10 Best Solar Companies in Caseyville, IL

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Last Updated: February 25, 2025

Every year, more Caseyville homeowners install rooftop solar panels to add value to their property and lower their carbon footprint. Switching to solar energy can reduce your monthly energy expenses and decrease your carbon output. Before you get started, you want to make sure you find a trustworthy installer. That’s why, after properly vetting providers, we put together a guide to the most trusted solar companies in Caseyville. These companies consistently deliver high-quality service.

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Top 10 Best Solar Companies in Caseyville

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

SunSent Solar

SunSent Solar Logo

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1710 Scherer Pkwy, St Charles, MO 63303 (636) 757-3083 sunsent.com

Informative resources

Clear pricing policy

Reliable customer support

Free quotes

Services Offered

Panel installation
Cleaning and maintenance
Financing assistance
Consultation
Skilled repairs
Battery storage

Sustainable Solar

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Our Rating

User Rating

16226 Veterans Memorial Pkwy, Wright City, MO 63390 (636) 489-2700 sustainablesolarllc.com

Clear pricing policy

Reliable customer support

Informative resources

Free quotes

Services Offered

Panel installation
Permit assistance
Skilled repairs
Financing assistance
Battery storage
Off-grid solar systems
System decommissioning
Grid-tied solar system

Helio Solar Power, LLC.

Helio Solar Power, LLC. Logo

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119 S Main St, St Charles, MO 63301 (888) 424-3546 heliosolarpower.com

Reliable customer support

Informative resources

Prompt service delivery

Clear pricing policy

Free quotes

Services Offered

Solar carports
Skilled repairs
Cleaning and maintenance
Battery storage
Panel installation
Financing assistance

Astrawatt Solar

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222 S Meramec Ave Suite 202-1100, St. Louis, MO 63105 (877) 937-4786 astrawatt.solar

Reliable customer support

Clear pricing policy

Informative resources

Free quotes

Services Offered

Tesla powerwall
Panel installation
Battery storage
Permit assistance
Consultation

StraightUp Solar of St. Louis

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11696 Lilburn Park Rd, St. Louis, MO 63146 (314) 218-2663 straightupsolar.com

Clear pricing policy

Informative resources

Free quotes

Services Offered

Panel installation
Battery storage
Consultation
Cleaning and maintenance
Grid-tied solar system
Financing assistance

EFS Energy

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1283 Research Blvd, St. Louis, MO 63132 (314) 771-5131 efsenergy.com

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Consultation
Panel installation
Financing assistance
Cleaning and maintenance

Solar city stl

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3636 S Geyer Rd #100, St. Louis, MO 63127 (636) 515-4895 solarcitystl.com

Informative resources

Reliable customer support

Free quotes

Services Offered

Financing assistance
Permit assistance
Cleaning and maintenance
Consultation
Panel installation
Battery storage

Route 66 Solar

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2110 Troy Rd Suite B1, Edwardsville, IL 62025 (618) 900-1280 route66solar.com

Informative resources

Clear pricing policy

Free quotes

Services Offered

Grid-tied solar system
System decommissioning
Financing assistance
Panel installation

Purelight Power of St. Louis

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User Rating

12747 Olive Blvd Suite 302, St. Louis, MO 63141 (314) 582-6129 purelightpower.com

Informative resources

Clear pricing policy

Free quotes

Reliable customer support

Services Offered

Panel installation
Permit assistance
Consultation
Financing assistance
Grid-tied solar system

Solar Luxury LLC

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Our Rating

User Rating

11252 Midland Blvd Apt 106, St. Louis, MO 63114 (314) 337-7071 solarluxurystl.com

Reliable customer support

Free quotes

Services Offered

Panel installation
Consultation
System decommissioning
Off-grid solar systems
Skilled repairs
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Solar Company

Adopting solar power lets homeowners cut utility bills while helping the environment by reducing your carbon footprint using clean energy. If you’re determining whether to go solar, consider these key factors for choosing an installer.

Check Licensing

It's imperative that your solar installer has the proper licensing. This helps ensure that the work is done correctly using current best installation practices. In Illinois, the state Commerce Commission regulates distributed generation energy contractors, including solar contractors.

Read Customer Reviews

Check review sites like the Better Business Bureau (BBB), TrustPilot, and Google Reviews to see feedback from past customers on local solar companies. Detailed reviews can help you assess a company's dependability and customer service. Use caution with companies that have barely any reviews or mostly negative ones.

Compare Multiple Quotes

Get free, detailed quotes from three to five solar companies. The quotes should describe all costs and identify the exact solar parts included. Comparing several quotes can help you find the most cost-effective option.

Ask About the Warranty

High-quality solar installations should have robust workmanship and performance guarantees. The workmanship warranty covers any installation issues like poor alignment, poor wiring, or cracks in the panels. The output warranty ensures an energy generation baseline. Strong warranties reflect a solar provider's confidence in its installations.

Evaluate Financing and Incentives

Solar panels can help decrease your electricity costs over time. When evaluating solar panel's cost and value, be sure to factor in these considerations.

  • Compare system purchase options: Solar panels can be purchased upfront or paid for over time through leases or loans. Confirm all terms when financing, including annual percentage rate (APR), fees, payment schedule, and ownership implications.
  • Research federal and state tax credits: A 26% federal tax credit on the full cost of solar systems is available through 2032. Many states also offer incentives. These credits can result in substantial savings for solar buyers.
  • Look into utility rebates: Local power companies may have extra rebates to motivate homeowners to install solar panels. Review the requirements to qualify and the rebate amounts with your local provider to figure out your potential savings.

Cost of Solar Installation in Caseyville

The cost of home solar panels in Caseyville depends on several factors, including your system's expected capacity and the type of solar technology being used. Generally speaking, a typical solar energy system will cost $3,760 per kilowatt, not including labor, preliminary work, or permit fees. Most solar systems in Caseyville are 6.1 kilowatts, and the typical Caseyville homeowners spends $16,000 after accounting for federal tax refunds. Some homeowners may prefer to lease solar panels and reduce upfront costs.

Caseyville Solar Incentives Guide

Incentive Type: Solar Renewable Energy Credit Program

Website: icc.illinois.gov

Incentive Amount:

Negotiated with procurement administrators

Incentive Type: Property Tax Incentive

Incentive Amount:

Varies

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

Frequently Asked Questions About Solar in Caseyville, IL

Generally speaking, a solar photovoltaic (PV) array can be used to power any household system or appliance that uses electricity. In the simplest case, you can use a solar water heating system.

With home solar PV, you can save money on your energy bill, lower your property's emissions, and gain additional energy independence.

Yes, you can use home solar energy alongside conventional power sources. In most parts of the country, solar panels are designed to supplement your existing energy sources, so you can reap the savings and environmental benefits that come from using solar energy without having to completely switch over.

Your installer can give you an estimate of what your energy bills will look like after you install solar panels. Generally, your energy bills will decrease significantly because you'll be using energy from the sun for free, instead of buying energy from the utility company. The average annual savings in Caseyville amount to $869.

Your payback period is the time to achieve an ROI on your solar panels. It will vary based on the average sunlight in your area, the rate your utility charges per kilowatt of power, and their rated capacity. Caseyville gets quite a bit of sunlight per day, so an average payback period could last up to 18.4 years per 5 kW of capacity.

While solar energy might not be the best option for some in wet or dark areas, the latest generation of equipment and energy storage systems could boost your property's solar viability enough where you could achieve a return on investment. A contractor could also recommend a different primary source of renewable energy like wind or geothermal to boost your generation.

Of course. Solar panels exist independently from the power grid in Caseyville and will continue to generate power even if the grid is having problems. Bear in mind, however, that a solar system won't take you through a nighttime outage if you don't have a storage system. Your contractor can discuss some economical options to keep your home's power access reliable through the worst conditions, including battery backups or an emergency generator.

Solar panels can be more efficient than other forms of renewable energy. They have inexpensive upkeep and today's systems can generate and manage energy under more conditions.

Other Caseyville, IL Home Services

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