15 Best Solar Companies in St. Peters, MO (2023 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 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 St. Peters

When choosing between the best solar installers, St. Peters homeowners have more providers to choose from than ever before, which can be overwhelming, but we're here to make making the switch to solar energy that much easier. Over 20 years of offsetting your energy costs with solar panels, you can save about $15,000 on your electricity bills.

If you're thinking about going solar, the first step to take is to find the best solar companies in St. Peters and compare quotes. That's why we did the hard work and made a list of the best solar companies so you don't have to. To get free quotes from the top-rated solar companies in St. Peters, click the "get quote" button 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 St. Peters

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

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 Clear Pricing Policy
  • Pros icon Free Quotes
  • 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 Integrated roofing
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Business installations
  • 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

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

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

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

4.7/5

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

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

Services Offered

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

YMGI Group / YMGI HVAC & Solar Supply

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

Website: http://ymgigroup.com/
Address: 601 Arrow Ln, O'Fallon, MO 63366
Phone: 6362726800
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 Expert panel installation
  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Home installations
  • Service icon Business 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 Expert panel installation
  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Energy storage solutions
  • Service icon Home installations

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

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

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

4.2/5

EFS Energy

  • 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 Business installations
  • Service icon Expert panel installation
  • Service icon Home installations

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

4.9/5

Astrawatt Solar

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

Services Offered

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

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

4.8/5

B-Raines Slate & Solar Roofing Co.

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

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

3.0/5

BKJ Solar

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

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

4.9/5

Unique Visions Solar Tint

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

Website: https://www.uvsolartint.com/
Address: 1B, 1039 S Big Bend Blvd Unit 1B, 1039 S Big Bend Blvd Unit 1B, MO 63117
Phone: 3146489944

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 know that for many homeowners, the decision to invest in solar rests on installation costs. Some important things that impact how much it will cost and how much you could save include:

  • Choice of solar panels: The type of solar panels you get 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 space isn't a constraint for your project, you can go with a higher number of more affordable panels.
  • How much power your household needs: If your family needs to use a lot of energy, you'll see more savings from going solar.
  • Average daily sunlight: Since St. Peters 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 your electricity bills will be.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 30% of your total 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 $15,000 over the first 20 years with your system, too.

Though a solar panel system costs a good chunk of money upfront, it can save you a considerable amount over the lifespan of your panels. The question of how much, though, depends on a number of factors, including the kind of solar panels you get and incentives.

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Solar Incentives in St. Peters

Although installing solar panels is typically a big investment, it can save you much money over many years due to lower power bills and government incentives. These incentives normally include cash rebates, tax credits and/or performance-based incentives. They can lower the cost of installing solar panels by 30%, upwards of 50% depending on your location. Check out our article on solar incentives to find out what incentives are available to you.

Environmental Impact of Switching to Solar in St. Peters

One of the most compelling reasons to switch to solar power is to decrease your dependence on traditional energy sources like burning fossil fuels, which are harmful for the environment. A question many people might have in mind is how much can they really help save the environment by going solar anyway? If your home uses lots of energy, you can help the environment even more by switching to solar power. After you go solar, your carbon dioxide emissions can be lowered by about 100 pounds each year. The advantages of solar power are abundant — just like solar power is! That's why so many St. Peters residents have been happy with using solar energy.

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 St. Peters, MO Solar Company Rankings FAQs

Which solar panel installer is the best near me?

The top local solar company in St. Peters is YMGI Group / YMGI HVAC & Solar Supply, with a rating of 3.00 stars.

What is the negative environmental impact of making solar panels?

Producing solar panels requires chemicals and produces toxic waste that can be dangerous for the environment, which is the main downside of solar panels.

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

The average payback period for solar panel installation is about 11.2 years, but the exact period depends on local electricity costs, incentives and net metering programs.

What are the different types of solar panels?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. In terms of efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by the layout of your roof, how much you're willing to spend and desired energy output.

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.