15 Best Solar Companies in St. Peters, MO (2024 Reviews)

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

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

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

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated May 20, 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 St. Peters

When choosing between the best solar panel companies, St. Peters homeowners have more providers to choose from than ever before, which can be overwhelming, but we’re here to make switching to solar energy that much easier. Solar power isn't just good for the environment — your finances will be better off too. Once you switch to solar power, you can save an average of $15,000 over 20 years, and this doesn't even include incentives.


In this article, we’ll list out the top St. Peters solar installers so you can make the best choice for your home’s solar energy needs.Want to know how much you would pay to install solar panels on your roof? Click "get quote" below to get a free, no-obligation quote from a top St. Peters solar installer.

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 St. Peters

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

SunSent Solar

  • Pros icon Clear Pricing Policy
  • 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 Consultation
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Financing Assistance

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

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

EcoWatch Rating

3.0/5

Helio Solar Power, LLC.

  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • 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 Financing Assistance
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Battery Storage
  • 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

4.2/5

EFS Energy

  • 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 Consultation
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • 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

AKA Solar LLC

  • 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 Consultation
  • Service icon Panel Installation

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

EcoWatch Rating

5.0/5

Astrawatt Solar

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

Services Offered

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

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

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

4.9/5

Streib Company

  • 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 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

3.0/5

Solar Luxury LLC

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Off-Grid Solar Systems
  • Service icon Consultation
  • 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

BKJ Solar

  • 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 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

Solar city stl

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

Services Offered

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

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

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

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

Services Offered

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

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

five stars electric and solar LLC

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • Pros icon Free Quotes
  • 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

3.0/5

Pyramid Electrical Contractors, Inc.

  • Con icon Limited information available on website

Services Offered

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

Website: http://www.pyramidelectrical.com/
Address: 300 Monticello Pl, Fairview Heights, IL 62208
Phone: 6186321180

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

EcoWatch's solar experts analyzed each solar company in St. Peters 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 St. Peters


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 St. Peters

We get that for most homeowners, the decision to invest in solar comes down to installation costs.The installation cost is just one important factor you should consider when looking into installing solar panels. How much it'll cost and how much you can save depend on things such as:

  • Choice of solar panels: The kind of solar panels you need 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 space isn't a constraint for your project, you can opt for a higher number of more affordable panels.
  • Your energy consumption: If your home needs to use a lot of energy, you'll see more savings from going solar.
  • How much sunlight your roof gets: This, along with the configuration of your roof, affects affect how much electricity your solar panels can make.
  • 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.

As a result of solar panels decreasing in cost as well as several solar incentives, they are a cost-effective investment for many homeowners.

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Solar Incentives in St. Peters

There are a lot of reasons why going solar is a great investment. One of them consists of some government incentives that can help save you some money.On top of the federal solar investment tax credit, there are also some local incentives, which in almost all cases, stack with the federal incentive, so you can save even more. You can find out about the incentives available to you in our article on solar incentives

Environmental Impact of Switching to Solar in St. Peters

Switching to solar energy can have a meaningful effect on the environment.But you may be curious – how much exactly can you help by using solar power? If your household consumes a lot of energy, you can help the environment even more by switching to solar power.Although solar panel manufacturing emits carbon dioxide, the panels make up for it by greatly reducing the amount of CO2 you would have produced if you still used nonrenewable energy. In St. Peters, you can reduce your carbon footprint by 100 pounds a year with solar panels. As you can see, going solar has so many other benefits besides saving money. One of the main ones is that you can help save the environment too.

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 St. Peters, MO Solar Company Rankings FAQs

Which solar installation company is the best in St. Peters?

In St. Peters, SunSent Solar is the most reputable local solar company. Our team of experts rates it 4.90 stars, so it's a solid choice if you're planning on installing solar panels on your house.

Are solar panels really eco-friendly?

Producing solar panels needs to use chemicals and produces toxic waste that can be bad for the environment, which is the main downside of solar panels.

How long does it take to see a return on your investment after buying solar panels?

Solar panels typically pay for themselves in about 14.6 years, but your solar payback period will depend on your utility costs. The more your typical power bill, the quicker your solar panel system will recoup your installation costs.

When should I install solar panels?

Despite summer being the most common time people install solar panels, the best time is actually winter. You can save money since there's less demand during the winter months, and it allows you to 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.