15 Best Solar Companies in Weldon Spring, MO (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Weldon Spring based on:

  • Customer review scores
  • Service area for Weldon Spring, MO
  • Company policies and services offered
  • Accreditations and certifications

Average Weldon Spring homeowner saves $1,295/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Weldon Spring

As a homeowner or business owner in Weldon Spring, you may be interested in switching to solar energy and wondering about the best solar companies in your local area. Solar could be a good idea since it has many benefits. Because Weldon Spring has a great capacity for solar energy generation, installing solar panels is financially rewarding for many homeowners.


Here, we’ll list out some of the best solar companies in Weldon Spring to make your decision a bit easier.Want to know how much it’d cost to install a solar system on your roof? Click "get quote" below to get a free, no-obligation quote from a highly rated Weldon Spring solar installer.

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Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

EcoWatch Rankings for Solar Companies in Weldon Spring

Best Local Installer
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EcoWatch Rating

5.0/5

Astrawatt Solar

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Tesla Powerwall

Website: https://www.astrawatt.solar/
Address: 222 S Meramec Ave Suite 202-1100, St. Louis, MO 63105
Phone: 8779374786
Outstanding Local Installer
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EcoWatch Rating

4.9/5

SunSent Solar

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Skilled Repairs
  • Service icon Panel Installation

Website: https://www.sunsent.com/
Address: 1710 Scherer Pkwy, St Charles, MO 63303
Phone: 6367573083
Outstanding Local Installer
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EcoWatch Rating

4.9/5

StraightUp Solar of St. Louis

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System
  • Service icon Cleaning and Maintenance

Website: https://straightupsolar.com/st-louis-city-county/
Address: 11696 Lilburn Park Rd, St. Louis, MO 63146
Phone: 3142182663
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Streib Company

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation

Website: http://streibco.com/
Address: 9225 Watson Industrial Park, St. Louis, MO 63126
Phone: 3144877474
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Route 66 Solar

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon System Decommissioning
  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon Financing Assistance

Website: https://route66solar.com/
Address: 2110 Troy Rd Suite B1, Edwardsville, IL 62025
Phone: 6189001280
Outstanding Local Installer
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EcoWatch Rating

4.3/5

EFS Energy

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance

Website: https://efsenergy.com/
Address: 1283 Research Blvd, St. Louis, MO 63132
Phone: 3147715131
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Helio Solar Power, LLC.

  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Skilled Repairs
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Solar Carports

Website: http://www.heliosolarpower.com/
Address: 119 S Main St, St Charles, MO 63301
Phone: 8884243546
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Solar city stl

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Battery Storage

Website: https://solarcitystl.com/
Address: 3636 S Geyer Rd #100, St. Louis, MO 63127
Phone: 6365154895
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Pyramid Electrical Contractors, Inc.

  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance

Website: http://www.pyramidelectrical.com/
Address: 300 Monticello Pl, Fairview Heights, IL 62208
Phone: 6186321180
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Solar Luxury LLC

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon Off-Grid Solar Systems
  • Service icon Panel Installation
  • Service icon System Decommissioning

Website: http://www.solarluxurystl.com/
Address: 11252 Midland Blvd Apt 106, St. Louis, MO 63114
Phone: 3143377071
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sustainable Solar

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon System Decommissioning
  • Service icon Grid-Tied Solar System
  • Service icon Skilled Repairs
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Off-Grid Solar Systems
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: http://sustainablesolarllc.com/
Address: 16226 Veterans Memorial Pkwy, Wright City, MO 63390
Phone: 6364892700
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

AKA Solar LLC

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: http://www.akasolarusa.com/
Address: 119 S Main St, St Charles, MO 63301
Phone: 3143148925
Outstanding Local Installer
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EcoWatch Rating

3.0/5

BKJ Solar

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation

Website: http://bkjsolar.com/
Address: 907 Harbor Oaks Ct, Hazelwood, MO 63031
Phone: 3148995527
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Purelight Power of St. Louis

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Grid-Tied Solar System
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Financing Assistance

Website: https://purelightpower.com/st-louis-solar-installation/
Address: 12747 Olive Blvd Suite 302, St. Louis, MO 63141
Phone: 3145826129
Outstanding Local Installer
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EcoWatch Rating

3.0/5

five stars electric and solar LLC

  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation

Website: https://five-stars-electric-and-solar-llc.business.site/
Address: 3725 michigan ave Chesterfield Missouri Fenton Missouri University City, 3725 Michigan Ave, St. Louis, MO 63118
Phone: 3146857515

Methodology: How We Ranked the Best Solar Companies in Weldon Spring

EcoWatch's solar experts analyzed each solar company in Weldon Spring based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Weldon Spring


Below are some the criteria we examined specifically for Missouri solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Weldon Spring

For most homeowners, whether or not to invest in solar energy comes down to the cost.The installation cost is just one important factor you should take into account when looking into getting solar panels. How much it'll cost and how much you can save depend on things such as:

  • Your current electricity bills: Solar panels can greatly decrease, or entirely get rid of, your utility bills. In Weldon Spring, you can save an average of $1,291 a month.
  • Your energy consumption: If your family needs to use a lot of energy, you'll benefit more from installing solar panels.
  • Choice of solar panels: The type of solar panels you buy will affect your total cost. High-efficiency monocrystalline panels are more expensive upfront but can also save you more money over the lifetime of your system. If you don’t need to maximize efficiency, you can go with a higher number of more affordable panels.
  • Average daily sunlight: Since Weldon Spring gets a decent amount of average daily sunlight, your solar panels can generally generate enough energy to power your whole home, which affects how much you can save on your energy bills.

There are several great benefits of solar despite the initial cost of installation. It can help the environment and your wallet. Additionally, it can boost the value of your home, resulting in even more benefits if you choose to sell your home later.

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Solar Incentives in Weldon Spring

If you’re considering switching to solar energy, a number of government incentives and state programs can greatly lower your project costs and expedite the return on your investment.On top of the federal solar investment tax credit, there are also some local incentives, which in the majority of cases, can be claimed in addition to the federal incentive, so you can save even more. For detailed information about incentives for homeowners in Weldon Spring, see our article on solar incentives.

Environmental Impact of Switching to Solar in Weldon Spring

Swapping traditional energy for solar is a great way to do what you can for a more sustainable future.Something many homeowners might be thinking about is how much can they really help save the environment by going solar anyway? The amount of energy you use is a key factor to consider. The more electricity you use, the greater your impact when you make the switch to solar power.Once you go solar, your carbon emissions can be lowered by about 100 pounds every year. Since solar power is renewable and produces electricity without releasing carbon emissions, making the switch to solar power is one easy step you can take to help protect the environment.

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Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

EcoWatch's Weldon Spring, MO Solar Company Rankings FAQs

What is the top solar panel company in Weldon Spring?

The top local solar company in Weldon Spring is Astrawatt Solar, with a rating of 5.00 stars.

What are the best and worst things about solar power?

The greatest advantages of solar power are that it can decrease or, for some, completely eradicate your electricity bills, raise your home’s value and lower your carbon footprint. The biggest disadvantages are that solar panels can be costly to install, you may not see as many savings if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.

How long does it take for solar to pay for itself?

The average payback period for solar panel installation is about 14.6 years, but the exact period varies depending on local electricity costs, incentives and net metering programs.

When should I put up solar panels?

Although summer is the most popular time people install solar panels, the ideal time is actually winter. You can save money since there's less demand during the winter months, and it lets you be up and running with solar for the higher power bills you may get during the summer.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.