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10 Best Solar Companies in St. Louis, MO

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Written By David Cusick

Last Updated April 2024

Rooftop solar energy is becoming increasingly popular for St. Louis homeowners. A new solar energy system can help you add value to your property, provide a dependable source of power, and decrease your carbon footprint. Adopting solar energy can reduce your monthly energy expenses and shrink your carbon output. Before you get started, you want to make sure you find a qualified installer. Luckily, we've reviewed the options and assembled a guide to the best and most trustworthy solar installation companies in St. Louis.

Our Recommended Providers

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  • Most affordable options

Top 10 Best Solar Companies in St. Louis

Astrawatt Solar

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

Free quotes

Informative resources

Clear pricing policy

Services Offered

Panel installation
Permit assistance
Consultation
Tesla powerwall
Battery storage

Streib Company

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9225 Watson Industrial Park, St. Louis, MO 63126 (314) 487-7474 streibco.com

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Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Panel installation

five stars electric and solar LLC

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3725 michigan ave Chesterfield Missouri Fenton Missouri University City, 3725 Michigan Ave, St. Louis, MO 63118 (314) 685-7515 five-stars-electric-and-solar-llc.business.site

Prompt service delivery

Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Panel installation

EFS Energy

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

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Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Panel installation
Consultation
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

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Prompt service delivery

Informative resources

Free quotes

Reliable customer support

Services Offered

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

StraightUp Solar of St. Louis

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

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

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

Solar Luxury LLC

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

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Clear pricing policy

Free quotes

Reliable customer support

Services Offered

System decommissioning
Consultation
Off-grid solar systems
Skilled repairs
Panel installation

Pyramid Electrical Contractors, Inc.

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300 Monticello Pl, Fairview Heights, IL 62208 (618) 632-1180 pyramidelectrical.com

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Cleaning and maintenance
Skilled repairs
Panel installation

Purelight Power of St. Louis

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

Reliable customer support

Free quotes

Informative resources

Clear pricing policy

Services Offered

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

BKJ Solar

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907 Harbor Oaks Ct, Hazelwood, MO 63031 (314) 899-5527 bkjsolar.com

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Reliable customer support

Clear pricing policy

Free quotes

Services Offered

Panel installation
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 reduce electricity costs and help the planet by reducing your carbon footprint using renewable energy. Here are some key factors to consider when deciding if a solar installer is trustworthy.

Check Licensing

Hiring a licensed solar installer is critical. This help guarantee 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

Check review sites 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 companies that have very few reviews or mostly negative ones.

Compare Multiple Quotes

To find a solar company that works with your budget, ask for free, detailed quotes from at least three providers. The quotes should list all costs as well as all solar equipment included. Comparing several quotes helps you identify the most cost-effective option.

Ask About the Warranty

Quality solar installations should have strong workmanship and performance guarantees. A workmanship guarantee addresses any installation defects (such as poor alignment, poor wiring, or cracks in the panels), while a performance warranty ensures a certain level of energy production. Strong warranties demonstrate a company's confidence in its work.

Evaluate Financing and Incentives

Switching to solar power can help reduce your energy expenses over time. Be sure to weigh these aspects when judging the cost and value of solar panels.

  • Compare system purchase options: Homeowners may purchase solar panels outright or spread out payments over time with a lease or loan. Be sure to confirm key details like fees, annual percentage rate (APR), payment schedule, and what ownership means when financing solar panels.
  • Research federal and state tax credits: A 26% federal tax credit for solar the applies to the full system cost is available through 2032. Many states also have incentives. These credits offer substantial savings for solar customers.
  • Look into utility rebates: Some utility companies may provide additional discounts to encourage homeowners to adopt solar power. Check the requirements and the rebate amounts offered by your local electric provider to estimate your potential savings.

Cost of Solar Installation in St. Louis

In St. Louis, solar panels cost an average of $3,370 per kilowatt, with an average system size of 7.2 kilowatts. The typical St. Louis homeowner spends $17,065 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 panel type, size, capacity, and required preliminary work. In some cases, homeowners may prefer leasing solar panels to reduce upfront costs.

St. Louis 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: Rebate Program

Website: cuivre.com

Incentive Amount:

Water Heater: $50
Ground-Source Heat Pumps: $750/ton
Ground-Source Heat Pump Replacement: $150/ton
Dual Fuel Heat Pumps: $150/ton
Basement/Crawl space/slab insulation: 50% of installed cost
Advanced Thermostat: 50% of installed cost
Heat Pump Water Heater: 50% of installed cost
Window Air Conditioning: 50% of installed cost
Business Lighting Rebate: Varies, visit program website or contact utility for details

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 St. Louis, MO

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

There are a number of benefits to home solar energy. You can save money, qualify for tax benefits, and raise your property values. With the right storage equipment, solar panels can also offer you additional energy security and offer some protection from power outages.

Yes. The grid in St. Louis already uses a large share of renewable energy sources, and you may be able to sell your excess generated energy to your utility for additional cost savings.

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 St. Louis amount to $1,260.

You might be pleasantly surprised at how quickly you can get a return on investment from your solar panels. The sun shines frequently in St. Louis, meaning your payback period could last 13.5 years per 5 kW of capacity on the high end.

Your recommended maintenance will vary based on the type of solar panels you have. With any system, you should clean and inspect each panel four times a year. Your solar installation company might offer comprehensive plans where they'll do the maintenance for you.

The answer ultimately depends on your specific situation. You can take advantage of a federal tax credit of up to 30% of the system's cost, as well as state or local incentives depending on where you are. As for insurance, you'll need to inform your insurance company about your new solar panels. Your premium may increase due to added property values, but you'll have peace of mind if a covered event happens to the system.

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

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