15 Best Solar Companies in Oakville, MO (2024 Reviews)

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

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

Average Oakville homeowner saves $1,408/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated April 21, 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 Oakville

When deciding on the best solar installers, Oakville homeowners have more providers to choose from than ever before, which can be too much to get a handle on, but we’re here to make making the switch to solar energy less confusing. Because of Oakville's great level of sunshine on average, there are lots of solar companies to choose from.


In this article, we’ll help you find the top options in your area.To help you know if solar panels are something you should get for your home, you can get a free, no-obligation quote from one of the best solar companies in Oakville by clicking the 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 Oakville

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Streib Company

  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • 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
ecowatch badge icon

EcoWatch Rating

5.0/5

Astrawatt Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Permit Assistance
  • 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
ecowatch badge icon

EcoWatch Rating

3.0/5

Solar city stl

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

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

4.9/5

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

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

4.2/5

EFS Energy

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

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

five stars electric and solar LLC

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • 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
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

SunSent Solar

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

Services Offered

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

3.0/5

Solar Luxury LLC

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

Services Offered

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

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

4.9/5

Route 66 Solar

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

Services Offered

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

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

3.0/5

Purelight Power of St. Louis

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

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

Pyramid Electrical Contractors, Inc.

  • Con icon Limited information available on website

Services Offered

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

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

Helio Solar Power, LLC.

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

Services Offered

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

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

BKJ Solar

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • 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
ecowatch badge icon

EcoWatch Rating

3.0/5

AKA Solar LLC

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • 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

Sustainable Solar

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

Services Offered

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

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

Methodology: How We Ranked the Best Solar Companies in Oakville

EcoWatch's solar experts analyzed each solar company in Oakville 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 Oakville


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 Oakville

For many readers, the decision of which solar installer to go with comes down to total costs.A few important factors that influence the cost of installing solar panels on your home and how much it could save you over time include:

  • Your home's orientation toward the sun: This, and your roof configuration, affects affect how much electricity your solar panels can produce.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you deduct 0 of your overall installation cost, your state or local government may offer additional tax exemptions, credits or rebates that will help you save even more. Aside from incentives, you can save an average of $17,000 over the first 20 years with your solar system, too.
  • average energy usage: The more power your household uses on average and the larger your current electricity bills are, the more likely you'll benefit from making the switch to solar.
  • Your current energy bills: Solar panels can dramatically lower, or totally get rid of, your utility bills. In Oakville, you can save an average of $1,291 a month.

Solar is a worthwhile investment for most homeowners. You can make your own power instead of paying for it from the grid and take advantage of solar incentives and rebates, all while helping the planet.

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Solar Incentives in Oakville

If you’re planning on switching to solar energy, a variety of government incentives and state programs can immensely bring down the installation costs and speed up the return on your investment.When you install solar panels, you can take advatage of the federal tax credit, or ITC. This credit currently lowers your tax bill by 0 of the cost of your solar panels. Plus, there are often some regional incentives that you can benefit from to further cut back on the cost of solar of solar panels. For more information about incentives that apply to you, see our article on solar incentives.

Environmental Impact of Switching to Solar in Oakville

There are tons of reasons to make the switch to solar energy, like saving some money on utility bills and helping to lower your carbon footprint.But how much can installing solar panels actually help the environment? According to the EPA, electricity generation is the second biggest source of greenhouse gas emissions and about 62% of our electricity comes from burning fossil fuels. Using solar power can help reduce that statistic in a city like Oakville that is responsible for a large amount of carbon dioxide emissions each year.Since solar panels don’t release CO2 emissions into the atmosphere when generating electricity, they’re a good alternative to nonrenewable energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 100 pounds each year. If you care about the environment, you’ll most likely get that there are many advantages to adopting solar energy other than just saving money on bills. You can also help protect the environment, which some would argue is more valuable.

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 Oakville, MO Solar Company Rankings FAQs

What is the most reputable solar panel installation company in Oakville?

In Oakville, Streib Company is the top local solar company. Our team of experts rates it 4.90 stars, so it's a good choice if you're looking to add solar panels to your home.

What are the advantages and disadvantages of solar power?

A few of the biggest pros are that it lets you spend less on your power bills, it’s eco-friendly, and it provides a decent return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, the startup costs are high and solar panels aren’t always aesthetically pleasing.

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

Solar panels usually pay for themselves in about 13.4 years, but your solar payback period will vary depending on your utility costs. The more your typical power bill, the faster your solar panel system will recoup your installation costs.

What is the efficiency of solar panels?

Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating between 15 and 20%. If your panels are more efficient, you'll need less of them for your home's energy needs.

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.