15 Best Solar Companies in St. Peters, MO (2025 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
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Average St. Peters homeowner saves $1,295/year with solar panels
Why you can trust EcoWatch
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.
EcoWatch Rankings for Solar Companies in St. Peters
Astrawatt Solar
Clear Pricing Policy- Free Quotes
- Informative Resources
- Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation- Battery Storage
- Permit Assistance
- Tesla Powerwall
- Consultation
SunSent Solar
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Skilled Repairs
- Cleaning and Maintenance
- Battery Storage
- Consultation
- Panel Installation
StraightUp Solar of St. Louis
- Free Quotes
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Financing Assistance
- Consultation
- Battery Storage
- Cleaning and Maintenance
- Grid-Tied Solar System
- Panel Installation
Streib Company
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Route 66 Solar
- Informative Resources
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Grid-Tied Solar System
- Financing Assistance
- Panel Installation
- System Decommissioning
EFS Energy
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Panel Installation
- Financing Assistance
- Consultation
Helio Solar Power, LLC.
- Free Quotes
- Reliable Customer Support
- Clear Pricing Policy
- Prompt Service Delivery
- Informative Resources
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Financing Assistance
- Battery Storage
- Panel Installation
- Solar Carports
- Skilled Repairs
Solar city stl
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Consultation
- Financing Assistance
- Permit Assistance
- Panel Installation
- Battery Storage
- Cleaning and Maintenance
Pyramid Electrical Contractors, Inc.
- Limited information available on website
Services Offered
- Panel Installation
- Cleaning and Maintenance
- Skilled Repairs
Solar Luxury LLC
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Skilled Repairs
- System Decommissioning
- Panel Installation
- Off-Grid Solar Systems
- Consultation
Sustainable Solar
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Off-Grid Solar Systems
- Financing Assistance
- Permit Assistance
- Panel Installation
- System Decommissioning
- Battery Storage
- Skilled Repairs
- Grid-Tied Solar System
AKA Solar LLC
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
BKJ Solar
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
Purelight Power of St. Louis
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Grid-Tied Solar System
- Permit Assistance
- Financing Assistance
- Consultation
- Panel Installation
five stars electric and solar LLC
- Limited information available on website
Services Offered
- Panel Installation
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.
EcoWatch's St. Peters, MO Solar Company Rankings FAQs
Which solar installation company is the best in St. Peters?
In St. Peters, Astrawatt Solar is the most reputable local solar company. Our team of experts rates it 5.00 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.