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10 Best Solar Companies in Collinsville, IL

More than 130 people have received a free quote in the last 60 days.

Last Updated: February 25, 2025

Every year, more Collinsville residents use rooftop solar panels to provide a dependable source of power and lower their carbon footprint. Going solar allows you to cut your utility bills and shrink your environmental impact. But you'll want to find a reputable installation company first. Luckily, we’ve conducted comprehensive research local solar installers and compiled a guide to the best solar companies in Collinsville. These reliable providers are smart choices homeowners can depend on.

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.

Top 10 Best Solar Companies in Collinsville

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

Our Rating

User Rating

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

Informative resources

Free quotes

Clear pricing policy

Reliable customer support

Services Offered

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

Sustainable Solar

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Our Rating

User Rating

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

Free quotes

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

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

Helio Solar Power, LLC.

Helio Solar Power, LLC. Logo

Our Rating

User Rating

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

Clear pricing policy

Reliable customer support

Prompt service delivery

Free quotes

Informative resources

Services Offered

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

Astrawatt Solar

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Our Rating

User Rating

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

Informative resources

Clear pricing policy

Free quotes

Reliable customer support

Services Offered

Tesla powerwall
Battery storage
Consultation
Permit assistance
Panel installation

StraightUp Solar of St. Louis

StraightUp Solar of St. Louis Logo

Our Rating

User Rating

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

Clear pricing policy

Informative resources

Free quotes

Services Offered

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

EFS Energy

EFS Energy Logo

Our Rating

User Rating

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

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Panel installation
Cleaning and maintenance
Financing assistance
Consultation

Solar city stl

Solar city stl Logo

Our Rating

User Rating

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

Reliable customer support

Free quotes

Informative resources

Services Offered

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

Route 66 Solar

Route 66 Solar Logo

Our Rating

User Rating

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
Financing assistance
System decommissioning
Panel installation

Purelight Power of St. Louis

Purelight Power of St. Louis Logo

Our Rating

User Rating

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

Reliable customer support

Clear pricing policy

Free quotes

Informative resources

Services Offered

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

Solar Luxury LLC

Solar Luxury LLC Logo

Our Rating

User Rating

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

Free quotes

Reliable customer support

Services Offered

Panel installation
System decommissioning
Consultation
Skilled repairs
Off-grid solar systems
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 benefiting the planet by reducing your carbon footprint using clean energy. If you’re evaluating if you want 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 issues licenses to distributed generation energy contractors, including solar contractors.

Read Customer Reviews

Check consumer review platforms like TrustPilot, the Better Business Bureau (BBB), and Google Reviews to see customer feedback about local solar companies. Detailed reviews can help you evaluate a company's reliability and customer service. Use caution with installers that have very few reviews or mostly negative ones.

Compare Multiple Quotes

Contact 3–5 solar companies to get free, detailed quotes. Quotes should clearly outline all costs and list the exact solar components included. By comparing multiple quotes, you can identify the best value based on your budget.

Ask About the Warranty

Top-notch solar installations should have strong workmanship and performance warranties. A workmanship warranty covers installation issues, such as poor alignment, cracks in the panels, or poor wiring. A performance warranty ensures a minimum energy output. Comprehensive warranties indicate that a solar company believes in its work.

Evaluate Financing and Incentives

Solar power can help reduce your electricity costs over time. When weighing solar panel's cost and value, be sure to consider these considerations.

  • Compare system purchase options: Homeowners may purchase solar panels upfront or finance payments over time with leases or loans. Be sure to verify key details like fees, payment schedule, annual percentage rate (APR), and what ownership means when financing solar panels.
  • Look into utility rebates: More discounts might be available from electric companies looking to encourage homeowners to switch to solar power. Contact your local utility provider to learn rebate values and eligibility rules, so you can determine your possible savings.
  • Research federal and state tax credits: A 26% federal tax credit on total solar system costs is available through 2032. Many states offer incentives, too. The credits can result in substantial savings for solar buyers.

Cost of Solar Installation in Collinsville

In Collinsville, solar panels cost an average of $3,760 per kilowatt, with an average system size of 6.1 kilowatts. The typical Collinsville homeowner spends $16,101 on their solar array after federal tax refunds. An estimate from a local provider will consider additional information based on your desired system's capacity, required preliminary work, size, and panel type. In some cases, homeowners may prefer to lease solar panels to reduce upfront costs.

Collinsville Solar Incentives Guide

Incentive Type: Property Tax Incentive

Incentive Amount:

Varies

Incentive Type: Solar Renewable Energy Credit Program

Website: icc.illinois.gov

Incentive Amount:

Negotiated with procurement administrators

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 Collinsville, IL

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

With home solar PV, you can save money on your energy bill, lower your property's emissions, and be better prepared if there's an outage to the local grid.

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

You might be pleasantly surprised at how quickly you can get a return on investment from your solar panels. The sun shines frequently in Collinsville, meaning your payback period could last 20.3 years per 5 kW of capacity on the high end.

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 to 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.

When it comes to taxes, the federal government offers a tax credit of up to 30% of the panels' cost. Depending on where you live, you could also claim or apply for state or property tax incentives. As for insurance, your monthly premium may be slightly higher because solar panels increase your property's value. You should talk with your accountant or insurance agent for information specific to your case.

The most common types of home solar panels in Collinsville include monocrystalline, thin-film and polycrystalline. Monocrystalline panels are balanced and efficient, while polycrystalline and thin-film panels pair good performance with greater upfront value. Ask your local provider about which solar panels they work with.

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