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10 Best Solar Companies in Washington, MO

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Written By David Cusick

Last Updated April 2024

A rooftop solar array will provide you with a renewable power source that will eventually pay for itself. Adopting solar energy can help you save money and shrink your carbon footprint, but you want to make sure you find a qualified installer. Luckily, we’ve conducted comprehensive research local solar providers and compiled a guide to the best solar companies in Washington. These reputable providers are smart choices homeowners can depend on.

Our Recommended Providers

Top Pick
4.7/5
  • High-quality Maxeon solar panels
  • Nearly 30 years in business
  • Great customer service
Best Financing Options
4.3/5
  • BluePower Plus+ financing program
  • Good selection of quality panels
  • Most affordable options

Top 10 Best Solar Companies in Washington

Sustainable Solar

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

Free quotes

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

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

SunSent Solar

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

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

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

Solar city stl

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

Prompt service delivery

Reliable customer support

Free quotes

Clear pricing policy

Informative resources

Services Offered

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

StraightUp Solar of St. Louis

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

Free quotes

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

Purelight Power of St. Louis

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

Free quotes

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

Helio Solar Power, LLC.

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

Reliable customer support

Prompt service delivery

Informative resources

Free quotes

Clear pricing policy

Services Offered

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

Solar Luxury LLC

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

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Services Offered

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

EFS Energy

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

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Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Cleaning and maintenance
Financing assistance
Consultation
Panel installation

Astrawatt Solar

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

Clear pricing policy

Free quotes

Informative resources

Services Offered

Panel installation
Consultation
Permit assistance
Tesla powerwall
Battery storage

Streib Company

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

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

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

Putting solar panels on your roof could cut your electricity payments while benefiting the planet by reducing your carbon footprint through renewable energy use. Key considerations when looking at local solar installers are as follows.

Check Licensing

It's imperative that your solar installer has the proper licensing. This help guarantee that the work is done correctly using current best installation practices. In Missouri, it's purely up to cities and counties issue contracting licenses. However, all contractors must register with the Missouri Secretary of State.

Read Customer Reviews

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

Compare Multiple Quotes

To find a solar installer that fits your budget, get free, detailed quotes from three to five 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

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

Evaluate Financing and Incentives

Going solar can help decrease your energy expenses. Be sure to weigh these aspects when determining the cost and value of solar panels.

  • Look into utility rebates: Local power companies may have extra discounts to encourage homeowners to go solar. Review the requirements to qualify and the rebate amounts with your local provider to calculate your potential savings.
  • Research federal and state tax credits: There’s a 26% federal tax credit available for the full cost of solar systems until 2032. Many states also offer incentives. The credits can add up to significant savings for solar buyers.
  • Compare system purchase options: Homeowners may purchase solar panels outright or spread out payments over time with leases or loans. Be sure to verify key details like payment schedule, fees, annual percentage rate (APR), and what ownership means when financing solar panels.

Cost of Solar Installation in Washington

Solar panel costs vary based on your system's capacity and the solar technology being used. The average solar system in Washington has a capacity of 7.2 kilowatts. Homeowners in the area should expect to pay around $3,370 per kilowatt; the average Washington homeowners spends roughly $16,974 on a new solar system after accounting for federal tax breaks. (Some homeowners prefer to lease solar panels to reduce their upfront costs.) A personalized quote from a local solar installer will account for things like the panel type, capacity, and size of the planned system, and should include costs for permit fees, labor, and preliminary work.

Washington 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 Washington, MO

Generally speaking, a solar photovoltaic (PV) system 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.

There are many advantages of home solar energy. You can raise your property values, reduce emissions, and qualify for tax benefits. With the right storage equipment, solar panels can also give you additional energy security and offer some protection from power outages.

Of course. The grid in Washington 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 Washington amount to $1,183.

You might be pleasantly surprised at how quickly you can get a return on investment from your solar panels. The sun shines frequently in Washington, meaning your payback period could last 14.3 years per 5 kW of capacity on the high end.

The specific types of maintenance you need will depend on the type of panels you're using. Regardless of type, you should inspect your panels for damage and clean them regularly. Many solar contractors in the Washington area offer low-cost maintenance plans to help you keep your panels healthy and make the most of your system.

Solar panels are gaining in popularity for their low upkeep costs and high efficiency under a variety of conditions. 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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