15 Best Solar Companies in Weldon Spring, MO (2024 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 February 01, 2024

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

Hoping to go solar but not sure which solar panel installer would be best for your needs? Although it can be difficult to settle on a solar company, the effort will pay off because going solar has many good benefits. Because Weldon Spring has a great capacity for solar energy generation, going solar is financially rewarding for many homeowners.


If you’re considering going solar, the first step you should take is to find the best solar companies in Weldon Spring and compare quotes. The great news is we went ahead and came up with a list of the best solar companies for you.To get free quotes from the best solar companies in Weldon Spring, click the "get quote" button below.

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

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

Best Technology

Tesla Energy

★★★★★
3.2

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch Rankings for Solar Companies in Weldon Spring

Best Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Sun Solar St. Louis

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

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Financing Assistance
  • Service icon Solar Carports
  • Service icon Tesla Powerwall

Website: http://www.ussunsolar.com/
Address: 10855 Metro Ct, Maryland Heights, MO 63043
Phone: 4174131786
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

StraightUp Solar

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

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Battery Storage
  • Service icon Maintenance
  • Service icon EV Charger
  • Service icon Tesla Powerwall

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

3.0/5

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 Maintenance
  • Service icon Residential Panels

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

EcoWatch Rating

4.9/5

Streib Company

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

Services Offered

  • Service icon Full-Service
  • Service icon Residential Panels
  • Service icon Commercial Panels

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

EcoWatch Rating

3.0/5

Helio Solar Power, LLC.

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Solar Carports
  • Service icon Maintenance
  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Financing Assistance
  • Service icon Battery Storage

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

EcoWatch Rating

3.0/5

Purelight Power of St. Louis

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

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Commercial Panels
  • Service icon Permit Assistance
  • Service icon Residential Panels

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

EcoWatch Rating

3.0/5

AKA Solar LLC

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

Services Offered

  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Consultation

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

EcoWatch Rating

3.0/5

EFS Energy

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

Services Offered

  • Service icon Maintenance
  • Service icon Commercial Panels
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Residential Panels

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

EcoWatch Rating

3.0/5

Solar Luxury LLC

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

Services Offered

  • Service icon Consultation
  • Service icon Residential Panels
  • Service icon System Decommissioning
  • Service icon Off-Grid Solar Systems
  • Service icon Skilled Repairs

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

Astrawatt Solar

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

Services Offered

  • Service icon Tesla Powerwall
  • Service icon Consultation
  • Service icon Residential Panels

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

EcoWatch Rating

3.0/5

Solar City STL

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

Services Offered

  • Service icon Consultation
  • Service icon Maintenance
  • Service icon Battery Storage
  • Service icon Residential Panels
  • Service icon Financing Assistance
  • Service icon Commercial Panels
  • Service icon Permit Assistance

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

EcoWatch Rating

3.0/5

B-Raines Slate & Solar Roofing Co.

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

Services Offered

  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Residential Panels
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Skilled Repairs
  • Service icon Business installations

Website: http://www.b-raines.com/
Address: 231 S Bemiston Ave #800, Clayton, MO 63105
Phone: 3145007663
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

BKJ Solar

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

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels

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

EcoWatch Rating

4.9/5

Route 66 Solar

  • 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 Residential Panels
  • Service icon Financing Assistance
  • Service icon Energy Efficiency Audit

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

EcoWatch Rating

3.0/5

Sustainable Solar

  • Pros icon Free Quotes
  • 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 Residential Panels
  • Service icon Skilled Repairs
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • Service icon Off-Grid Solar Systems

Website: http://sustainablesolarllc.com/
Address: 16226 Veterans Memorial Pkwy, Wright City, MO 63390
Phone: 6364892700

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

When deciding on a solar company, most homeowners or business owners wonder about the costs the most.The cost and possible savings vary depending on some important factors such as:

  • How much you spend on energy: The typical household in Weldon Spring pays around $1,300 a year on energy alone, so you could gain that much in savings.
  • Incentives: The federal solar investment tax credit, which can save you some money, allows you to deduct 0 of the cost of installing your solar panel system from your taxes. Additionally, not including incentives, you can save about $15,000 over 20 years on your energy bills.
  • 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 lead to more savings 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.
  • The amount of sunlight your roof gets: If your roof doesn’t get a lot of direct sunlight, your solar system won’t be able to produce as much energy, which will leave you with lower savings on electricity bills than a house with a roof that gets lots of sunlight.

Though a solar panel system costs a good chunk of money upfront, it can save you thousands of dollars in the long term. The question of how much, though, depends on several factors, such as the size of your house and your energy consumption.

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Solar Incentives in Weldon Spring

There are many reasons why adopting solar power is beneficial. One of them involves some government incentives you can take advantage of.Local solar incentives vary by location and, sometimes, utility company. Many states offer rebates for solar panels, in addition to the federal solar tax credit. You can learn about the incentives you can use in our article on solar incentives

Environmental Impact of Switching to Solar in Weldon Spring

If you want to add solar panels to your home, one of the primary reasons why may be to reduce your reliance on nonrenewable energy.Something many might have in mind is how much can they really help the environment by going solar anyway? If your family uses lots of energy, you can impact the environment even more by switching to solar energy.Since solar panels don’t release carbon dioxide emissions into the atmosphere when generating electricity, they’re a good trade for nonrenewable energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 100 pounds each year. For those who are worried about the environment, the upfront cost of solar is a small price to pay for the offset carbon emissions.

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

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

Best Technology

Tesla Energy

★★★★★
3.2

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's Weldon Spring, MO Solar Company Rankings FAQs

What is the best solar panel installer in Weldon Spring?

The best local solar company in Weldon Spring is Sun Solar St. Louis, with a rating of 5.00 stars.

What are the biggest pros and cons of installing solar panels?

A few of the biggest pros are that it lowers your power bills, it’s eco-friendly, and it can give you a significant return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, the installation cost is pricey and solar panels can be an eyesore.

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

Solar panels usually pay for themselves in about 14.6 years, but your solar payback period will vary depending on your utility costs. The more your typical power bill, the quicker your solar panel system will pay for itself.

When is the best time of year to install solar panels?

You can put up solar panels whenever it's convenient for you, but consider doing so in the winter when there's less demand. With fewer homeowners contracting installers, you could potentially see faster installation times and more savings.

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.