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10 Best Solar Companies in Affton, MO

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

Last Updated: February 25, 2025

A new solar energy system could give you a renewable power source that will pay for itself in time. Solar power can reduce your energy costs and shrink your carbon footprint. However, it's important to choose a reputable solar installer. Luckily, we’ve conducted comprehensive research local solar installers and put together a guide to the best solar companies in Affton. These reputable providers are reliable options known for their quality services.

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 Affton

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

Clear pricing policy

Free quotes

Reliable customer support

Informative resources

Services Offered

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

Sustainable Solar

Sustainable Solar Logo

Our Rating

User Rating

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

Free quotes

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

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

Prompt service delivery

Reliable customer support

Informative resources

Free quotes

Services Offered

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

Astrawatt Solar

Astrawatt Solar Logo

Our Rating

User Rating

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

Consultation
Permit assistance
Tesla powerwall
Panel installation
Battery storage

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

Free quotes

Clear pricing policy

Informative resources

Services Offered

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

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
Consultation
Financing assistance
Cleaning and maintenance

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

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

Route 66 Solar

Route 66 Solar Logo

Our Rating

User Rating

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

Clear pricing policy

Informative resources

Free quotes

Services Offered

System decommissioning
Grid-tied solar system
Financing assistance
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

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Services Offered

Grid-tied solar system
Financing assistance
Panel installation
Permit 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

Consultation
Panel installation
Skilled repairs
System decommissioning
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

Going solar can be a great way to lower electricity costs and help the planet by reducing your carbon footprint using renewable energy. Here are some crucial factors to consider when deciding if a solar installer is reliable.

Check Licensing

Verify that your solar installer is properly licensed. This ensures that the work is done properly using current best installation practices. In Missouri, it's the responsibility of counties and cities issue contracting licenses. However, all contractors must register with the Missouri Secretary of State.

Read Customer Reviews

Look at review platforms such as the Better Business Bureau (BBB), TrustPilot, and Google Reviews to find out what previous customers have to say about local solar companies. Reviews can give you an idea of a company’s dependability and customer service. Be cautious of companies lacking reviews or with predominantly negative feedback.

Compare Multiple Quotes

Contact three to five solar companies to receive free, detailed quotes. Quotes should clearly outline all costs and specify the exact solar components included. By comparing multiple quotes, you can identify the option that best fits your budget.

Ask About the Warranty

Quality solar installations should have comprehensive workmanship and performance guarantees. The workmanship warranty covers any installation issues such as cracks in the panels, poor alignment, or poor wiring. The performance warranty ensures a specific energy output level. Strong warranties indicate that a solar installer trusts its installations.

Evaluate Financing and Incentives

Solar is great for helping you lower electricity bills over time. Be sure to consider these aspects when considering the final cost and value of solar panels.

  • Compare system purchase options: Solar panels may be paid for upfront or financed over time through loans or leases. Confirm all terms when financing, such as fees, payment schedule, annual percentage rate (APR), and ownership implications.
  • Research federal and state tax credits: A 26% federal tax credit for the full solar system cost is available through 2032. Many states provide incentives, too. The credits can lead to substantial savings for solar buyers.
  • Look into utility rebates: Some energy providers may provide additional rebates to motivate homeowners to install solar panels. Check the requirements and the rebate amounts offered by your local power company to estimate the possible savings.

Cost of Solar Installation in Affton

In Affton, solar panels cost an average of $3,370 per kilowatt, with an average system size of 7.2 kilowatts. The typical Affton homeowner spends $17,060 on their solar array after federal tax refunds. An estimate from a local provider will take into account additional information reflecting your desired system's capacity, panel type, size, and required preliminary work. In some cases, homeowners may prefer to lease solar panels to reduce upfront costs.

Affton Solar Incentives Guide

Incentive Type: Rebate Program

Website: powermoves.com

Incentive Amount:

Dual Fuel Heat Pump: $500
Variable Speed Pool Pump: $250
Air-Source Heat Pump: $250 - $750
Geothermal Heat Pump: $1,500
Heat Pump Water Heater: $400/unit
HVAC: Varies depending on ZIP code. See program website

Incentive Type: Rebate Program

Website: central.libertyutilities.com

Incentive Amount:

$0.25 per watt for systems operational between July 1, 2019, and December 31, 2023

Incentive Type: Property Tax Incentive

Incentive Amount:

100% exemption

Incentive Type: Rebate Program

Website: ameren.com

Incentive Amount:

Air-Source Heat Pump: $500-$900
Ductless Air-Source Heat Pump: $300-$500
Dual Fuel Heat Pump: $175-$200
Ground Source Heat Pump: $800-$2,000
Central Air Conditioner: $300-$500
Electronically Commutated Motor (ECM): $50-$100
Air Conditioner/Heat Pump Tune-Up: $75

Incentive Type: PACE Financing

Incentive Amount:

Financing contracts limited to 20 years or less; improvements must display a positive economic benefit over the life of the contract.

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 Affton, MO

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

It depends on your location and the kind of panels you plan to use. Since there's a moderate amount of snowfall in Affton, your best time to install solar panels is in the spring and fall.

Yes, it's possible to use home solar energy alongside conventional power sources. In most parts of the country, solar panels are designed to supplement your existing energy sources, which means 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 Affton amount to $1,273.

While solar energy might not be ideal 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.

Yes, solar panels will still be able to supply you with energy during a grid outage. To ensure that your solar system can keep working during a power outage, make sure to choose a quality solar provider and look for a solar system that includes a battery backup.

Solar panels are gaining wider adoption for their high efficiency and low maintenance costs. Depending on how much sunlight your property receives, you may find they're the best performing source of renewable energy compared to others.

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