15 Best Solar Companies in Lake St. Louis, MO (2023 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Lake St. Louis based on:

  • Customer review scores
  • Service area for Lake St. Louis, MO
  • Company policies and services offered
  • Accreditations and certifications

Average Lake St. Louis homeowner saves $1,295/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated September 15, 2023

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 Lake St. Louis

Looking to go solar but still deciding on which solar panel installer would be the best one for you? Although it can be hard to pick a solar company, the search will pay off because going solar has many great perks. Because solar panels produce their own electrical power, they can greatly offset your electricity bill each month, if not totally eliminate it. In fact, you could look forward to about $15,000 of savings over 20 years.

If you want to start making use of the great number of perks of solar, we're here to help you narrow down your options to find the Lake St. Louis solar installer that's the right price for you. To receive free quotes from the best solar companies in Lake St. Louis, you can click "get quote" below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

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

Best Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch Rankings for Solar Companies in Lake St. Louis

Best Local Installer
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EcoWatch Rating

3.0/5

Solar & Roofing By Contemporary | Solar Energy | Roof Replacements | Solar Panels

  • 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 Professional reinstallation
  • Service icon Expert panel installation
  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Skilled repairs

Website: https://www.contemporarystl.com/solar
Address: 810 Eastbrook Ln, O'Fallon, MO 63366
Phone: 6367573563
Outstanding Local Installer
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EcoWatch Rating

3.0/5

YMGI Group / YMGI HVAC & Solar Supply

  • 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 Expert panel installation
  • Service icon Home installations
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Integrated roofing

Website: http://ymgigroup.com/
Address: 601 Arrow Ln, O'Fallon, MO 63366
Phone: 6362726800
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Sunsent 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 Expert panel installation
  • Service icon Skilled repairs
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Energy storage solutions

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

Sun Solar St. Louis

  • 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 Home installations
  • Service icon Tailored solutions
  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Expert panel installation

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

4.0/5

Helio Solar Power, LLC.

  • Pros icon Prompt Service Delivery
  • 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 Home installations
  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Skilled repairs
  • Service icon Energy storage solutions
  • Service icon Expert panel installation

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

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 Tailored solutions
  • Service icon Professional reinstallation
  • Service icon Integrated roofing
  • Service icon Skilled repairs
  • Service icon Expert panel installation
  • Service icon Energy storage solutions
  • Service icon Home installations

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

4.7/5

StraightUp 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 Energy storage solutions
  • Service icon Skilled repairs
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions

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

4.8/5

Solar Luxury LLC

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

Services Offered

  • Service icon Professional reinstallation
  • Service icon Skilled repairs
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Home installations

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

AKA Solar LLC

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

Services Offered

  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Home installations

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

5.0/5

Greentech Renewables St. Louis

  • 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 Home installations
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Expert panel installation

Website: https://www.greentechrenewables.com/location/st-louis-mo
Address: 8921 Frost Ave, Berkeley, MO 63134
Phone: 3143071392
Outstanding Local Installer
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EcoWatch Rating

4.2/5

EFS Energy

  • 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 Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Energy storage solutions

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

5.0/5

Solar City STL

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

Services Offered

  • Service icon Integrated roofing
  • Service icon Business installations
  • Service icon Home installations
  • Service icon Skilled repairs
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Energy storage solutions

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

Astrawatt 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 Expert panel installation
  • Service icon Home installations
  • Service icon Tailored solutions

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

3.0/5

Purelight Power of St. Louis

  • Pros icon Free Quotes
  • 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 Integrated roofing
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Home installations

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

4.8/5

B-Raines Slate & Solar Roofing Co.

  • 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 Expert panel installation
  • Service icon Business installations
  • Service icon Integrated roofing
  • Service icon Skilled repairs
  • Service icon Home installations
  • Service icon Tailored solutions

Website: http://www.b-raines.com/
Address: 231 S Bemiston Ave #800, Clayton, MO 63105
Phone: 3145007663

Methodology: How We Ranked the Best Solar Companies in Lake St. Louis

EcoWatch's solar experts analyzed each solar company in Lake St. Louis 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 Lake St. Louis


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 Lake St. Louis

For lots of homeowners, the decision to invest in a solar energy system comes down to the cost. Some significant things that influence the cost and possible savings include:

  • Whether or not your roof gets a lot of direct sunlight: This, plus the configuration of your roof, affects affect how much power your solar panels can generate.
  • Incentives: The federal solar investment tax credit, which everyone qualifies for, lets you deduct 30% of the cost of installing your solar panel system from your taxes. Plus, not including incentives, you can save about $15,000 over 20 years on your energy bills.
  • Your income and budget: This affects what kind of solar panels you can buy.
  • Energy consumption: Solar may be a high-cost investment for households that don't need a lot of energy each month.

So is a solar system worth it? Whether you'd like to decrease your energy bills, greenhouse gas emissions or both, solar panels are a good investment for many Lake St. Louis homeowners.

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Solar Incentives in Lake St. Louis

There are many good reasons why going solar is a great investment. One of them includes some government incentives that can save you money. When you install solar panels on your house, you become eligible to claim the federal tax credit, or ITC. This credit currently lets you reduce your tax bill by 30% of the cost of your solar panels. Plus, there may often be some regional incentives that you can use to further cut back on the cost of solar of solar panels. Check out our article on solar incentives to find out what incentives you can take advantage of.

Environmental Impact of Switching to Solar in Lake St. Louis

If you're planning on adding solar panels to your home, one of the major reasons why may be to reduce your carbon dioxide emissions. Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Lake St. Louis, though. Regardless of your location, you can help the planet by switching to solar energy, but homes that use a lot of energy will have an even greater impact. In Lake St. Louis, the average person can lower their carbon footprint by 100 pounds a year after going solar. For homeowners who are worried about the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Solar Financing

Blue Raven Solar

★★★★★
4.5

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

Best Warranty Coverage

ADT Solar

★★★★★
4.0

  • Industry-leading warranty coverage
  • Expansive service area
  • Some reported communication issues
  • No leases or PPAs

EcoWatch's Lake St. Louis, MO Solar Company Rankings FAQs

Which solar panel installer is the best in Lake St. Louis?

In Lake St. Louis, Solar & Roofing By Contemporary | Solar Energy | Roof Replacements | Solar Panels is the most reputable local solar company. Our team of experts rates it 3.00 stars, so it's a great choice if you're looking to add solar panels to your house.

What are the pros and cons of solar power?

A few of the biggest pros are that it reduces your power bills, it's good for the environment, and it provides a decent return on your investment (ROI). The most notable cons are that solar panels don't produce electricity at night, they cost a lot upfront and solar panels can look clunky on your roof.

Is it worth installing solar panels on my roof?

Solar panels require a significant upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a collection of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.

How efficient is a solar panel system?

Solar panel efficiency is the amount of solar energy 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 to meet 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.