Top Solar Companies in St. Louis, Missouri

Top Solar Companies in St. Louis, Missouri

Find the Best Solar Installers in St. Louis, Missouri

St. Louis, Missouri
Finding the perfect solar installer in St. Louis, Missouri just got easier. Skip the endless research – our guide does the heavy lifting by showcasing the top solar companies right here in St. Louis, Missouri. We combine in-depth analysis with feedback from local customers to present you with the best options.
Discover companies with proven track records, excellent customer reviews, and a commitment to service and quality. Here’s our curated list of St. Louis, Missouri’s most reliable solar installers to start your solar journey with confidence.
1
4.3Expert Score
Market leader

Solar is the only way to go. Redefining your connection with energy is Day & Night Solar. Control your energy expenses right away! Our goal is to provide customers a turnkey solar solution that entirely satisfies their requirements and goals by using our knowledge, experience, and connections throughout the world to make the switch to renewable energy beneficial for both them and the environment.

Pros
  • Professionalism and Competence
  • Customer Recommendations
  • Guiding Customers
Cons
  • Underperforming Systems
  • Lack of Support
  • Dishonesty and Miscommunication
Year Founded2009
Company Websitedayandnightsolar.com
Areas ServedOH
Services Offeredsolar panel installation, battery storage solutions, solar panel maintenance and energy efficiency audit
Panel OptionsMonocrystalline Panels, Polycrystalline Panels, Thin-Film Panels, Bifacial Panels
Battery Installationslithium-ion batteries
CertificationsNABCEP, SEIA, Manufacturer Certifications

Day & Night Solar is our top choice in with a score of 4.3. Here’s why:

  • Started in 2009, they know solar inside and out and really care about their customers.
  • They provide a wide range of solar services — solar panel installation, battery storage solutions, solar panel maintenance and energy efficiency audit — whatever you need to get a system set up and running.
  • They work all over OH, bringing solar energy to local homes and businesses.
  • Day & Night Solar is doing quality work, has a good online reputation, and is trusted by locals, as shown by many positive reviews.

See full Day & Night Solar review.

2
4.3Expert Score
Market leader

St. Louis-based EFS Energy installs solar panels across the Midwest. Our primary goal is to see our clients become self-sufficient in their energy needs via the installation of solar photovoltaic systems. Custom solar panel installations for businesses, homes, and farms are our forte. Solar power is cheaper than ever, and there are several ways to pay for it. Get going on the path to energy autonomy today with help from EFS.

Pros
  • Experienced solar panel contractor
  • Variety of financing options available
  • Offers discounts for upfront payments and referrals
Cons
  • High installation cost
  • Limited availability of models with solar panels
  • Longer payback period
Year Founded2011
Company Websiteefsenergy.com
Areas ServedMO, IL
Services OfferedInstallation, Solar Repair & Maintenance, Community Sola
Panel Optionsmonocrystalline, polycrystalline, and thin-film
Battery Installationslithium-ion batteries
CertificationsNABCEP, BBB

EFS Energy is our top choice in with a score of 4.3. Here’s why:

  • Started in 2011, they know solar inside and out and really care about their customers.
  • They provide a wide range of solar services — Installation, Solar Repair & Maintenance, Community Sola — whatever you need to get a system set up and running.
  • They work all over MO, IL, bringing solar energy to local homes and businesses.
  • EFS Energy is doing quality work, has a good online reputation, and is trusted by locals, as shown by many positive reviews.

See full EFS Energy review.

3
4.4Expert Score
Market leader

With over 15 years of experience installing solar energy systems, StraightUp Solar is a Missouri and Illinois solar installation business. We fulfill your solar dream with end-to-end service by putting people and the earth first as a certified B Corp. We’re fired up to deliver on every solar photovoltaic (PV) project we give, from design to development to installation and beyond. You may start working on a unique solar solution that suits your requirements by requesting a free quotation for your home or place of business.

Pros
  • Comprehensive service offerings
  • Innovative technological solutions
  • Simple and effective consultations
Cons
  • Support issues after installation
  • Not suitable for all types of roofs
Year Founded2006
Company Websitestraightupsolar.com
Areas ServedIL, MO
Services OfferedInstallation, Financing, Electrical Contracting, Solar Repair & Maintenance, Community Solar
Panel Optionssingle-crystal, polycrystalline and thin-film
Battery Installationslithium-ion batteries
CertificationsBBB, SEIA, NABCEP, B-Corp

StraightUp Solar is our top choice in with a score of 4.4. Here’s why:

  • Started in 2006, they know solar inside and out and really care about their customers.
  • They provide a wide range of solar services — Installation, Financing, Electrical Contracting, Solar Repair & Maintenance, Community Solar — whatever you need to get a system set up and running.
  • They work all over IL, MO, bringing solar energy to local homes and businesses.
  • StraightUp Solar is doing quality work, has a good online reputation, and is trusted by locals, as shown by many positive reviews.

See full StraightUp Solar review.

4
4.7Expert Score
Market leader

Tick Tock Energy offers support to businesses and people that want to manage their energy. We assist you in lowering utility expenses by maximizing energy efficiency, creating your own energy using solar and wind power, and managing your energy to cut consumption and utility prices.

Pros
  • Long term investment
  • Government incentives
  • Comprehensive Services
Cons
  • Weather dependency
  • Space Requirements
  • Maintenance and repair
Year Founded2006
Company Websiteticktockenergy.com
Areas ServedIL, IN, MO
Services OfferedInstallation, Financing, Energy Auditing, Construction, Electrical Contracting, General Contracting, Solar Repair & Maintenance
Panel Optionsmonocrystalline, polycrystalline, and thin-film panels
Battery Installationslithium-ion batteries, lead-acid batteries, and nickel-cadmium batteries
CertificationsBBB, NABCEP

Tick Tock Energy is our top choice in with a score of 4.7. Here’s why:

  • Started in 2006, they know solar inside and out and really care about their customers.
  • They provide a wide range of solar services — Installation, Financing, Energy Auditing, Construction, Electrical Contracting, General Contracting, Solar Repair & Maintenance — whatever you need to get a system set up and running.
  • They work all over IL, IN, MO, bringing solar energy to local homes and businesses.
  • Tick Tock Energy is doing quality work, has a good online reputation, and is trusted by locals, as shown by many positive reviews.

See full Tick Tock Energy review.

5
4Expert Score
Market leader

In 2008, Missouri Solar Applications was established. Since then, we have offered solar energy and energy-saving solutions to homes, companies, and other buildings across Missouri and neighboring states. We exclusively provide top-tier goods and services, demonstrating our concern for the caliber of your system.

Pros
  • Quality Solar Panels
  • Eco-Friendly Approach
  • American-Made Products
Cons
  • Limited Service Coverage
  • Pricing
  • Lack of Follow-Up
Year Founded2008
Company Websitemosolarapps.com
Areas ServedMO
Services OfferedFinancing
Panel Optionsmonocrystalline and polycrystalline solar panels
Battery Installationslithium-ion batteries
CertificationsNABCEP

Missouri Solar Applications is our top choice in with a score of 4.0. Here’s why:

  • Started in 2008, they know solar inside and out and really care about their customers.
  • They provide a wide range of solar services — Financing — whatever you need to get a system set up and running.
  • They work all over MO, bringing solar energy to local homes and businesses.
  • Missouri Solar Applications is doing quality work, has a good online reputation, and is trusted by locals, as shown by many positive reviews.

See full Missouri Solar Applications review.

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How Much Can Solar Panels Save Me in St. Louis, Missouri?

Finding out how much you can save on solar in Missouri is not a straightforward answer. It depends on several factors, including the solar billing of your utility company, the size of a potential solar system on your roof, and your household’s energy consumption. While most solar installers will try to cover all your electricity needs, the actual savings will depend on your home’s unique conditions. To get a personal estimate of how much you could potentially save by going solar, fill out a simple form on our website, use Google’s Project Sunroof solar savings calculator, or consult with a couple of local solar installation companies for a personalized savings calculation.

Solar Financing Explained

You can pay for solar panels in a couple of ways.

  • Cash
  • Installer solar loans
  • Personal loans
  • Cash-out refinance or HELOC
  • Solar Leases or Power Purchase Agreements (PPA)

First, there is a cash purchase, which in most cases provides the best price and long-term savings, but the upfront payment is not always what you can afford. If you want to own your solar panels and don’t have about $15,000 to $20,000 in the bank, you’ll have to choose solar panel financing.

You can consider a personal loan, a home equity line of credit, or a solar loan offered by the solar company. However, keep in mind that these loans come with interest and additional fees. Solar loans often are tied to dealer fees, which can increase the total cost of your solar system by 20% or more in exchange for a lower interest rate. To ensure you get the best possible deal, it is wise to compare the dealer fees and interest rates offered by different installers. This way, you can make an informed decision based on the most favorable terms available.

Some companies offer solar leases or PPAs that require zero upfront cost. But in such case, you don’t own solar panels and you are not eligible for any solar rebates or the federal tax credit. And, because you have to pay the solar company monthly, your total solar savings will be lower. Ask for detailed savings calculations from a solar installer to decide on the best option. In most cases, you will still be paying less for electricity.



Frequently Asked Questions

How We Rank Solar Installers

Our main goal is to provide homeowners like you with top-rated solar companies you can trust. Our solar experts analyzed thousands of local and nationwide installers to get to the bottom of who is best in a specific location. The solar company ranking methodology is based on gathering input from homeowner surveys, consulting with industry experts, and extensive research into the solar energy market. Here are the things we believe are the most important to consider when choosing a solar company.

In short, here’s how we pick top installers:

    • Company that has been in business for over five years as it indicates stability, reliability, and successful installations.
    • Local solar companies over big national ones covering multiple areas as they can provide better personal attention and know more about the solar needs and regulations in their area.
    • Companies with hands-on experience and a wealth of projects under their belt are more likely to deliver efficient and timely installations that cater to specific customer needs.
    • Companies that handle their own installations instead of outsourcing to subcontractors ensure a higher caliber of work and nurture a culture of excellence and accountability in service.
    • Select a company that has a good overall reputation and reviews on sites like SolarReviews, BBB, Google Maps, and Yelp.
    • Companies that offer a wide selection of high-quality solar panels and related products and work with reputable brands.
    • Companies that provide flexible financing options such as solar loans, leases, or power purchase agreements.
    • Installers that provide substantial workmanship warranties and system performance guarantees.

Read more: Our Methodology.

What to Look for In a Solar Company:

To ensure that you partner with a great provider that can meet your needs of going solar, look for the following:

    • Make sure the solar installer has industry-standard certifications, such as those from the North American Board of Certified Energy Practitioners (NABCEP), indicating that they meet the gold standard in renewable energy installations. Also, verify if they are licensed, bonded, and insured for residential solar projects in your area. If subcontractors are involved, check their credentials as well.
    • Prioritize installers with a proven track record in solar installations, ideally with at least 5+ years of experience. Ask about the number of systems they’ve installed and their project portfolio. A competent installer should openly discuss the solar panels, inverters, and batteries they use if they help to take advantage of local solar incentives and rebates, and warranty coverage specifics.
    • Your installer should be forthcoming about the installation process and answer any questions you might have, like “How many solar panels will I need? Why?”, “Can you give me a detailed cost breakdown based on my energy consumption?”, “What solar panel brands do you install? Why?”, etc. They should also be transparent about their use of subcontractors, detailing their roles and how their work will be supervised.
    • A preliminary evaluation of your roof’s condition is the groundwork. The installer should advise on necessary repairs to ensure it’s ready for solar panel installation and clarify responsibilities for any potential roof damage during the process. Discuss aesthetic concerns, such as the placement of solar panels around roof vents or the possibility of relocating vents for a more visually appealing setup.
    • Check the installer’s reputation through online reviews and testimonials. They should be able to connect you with past customers willing to share their experiences. Personal recommendations from friends or neighbors who’ve gone solar can also be invaluable.
    • Solar installation costs can vary widely, so obtaining multiple quotes is advisable. Experienced installers will adjust their offers to your home’s specifics—size, energy needs, etc. For an objective cost comparison, calculate the price per watt of the proposed system, giving you a standardized basis to evaluate different quotes.

Should You Choose a Local Solar Installer or a Big National Company?

Always choose a local solar company over a big national corporation. Small local companies that operate in a distinct local area are better than multistate and national solar companies and large corporations. It’s the small local companies that get the best reviews on our website, and it’s the national multistate companies that get very poor reviews. Why so, you may ask? 

Solar is a local service business, for the most part, and it is extremely difficult to run a solar company and offer good customer service to many locations from a central office.

Local ones have a community connection, they know better the incentives and regulations in the area, and they simply care more about you than large businesses trying to get into your pocket and overprice you. While multistate solar companies might try to convince you by financial stability and “quality of installations across different locations”, try to choose a local company that meets all your criteria.

What Does a Solar Installation in St. Louis, Missouri Look Like?

Here’s how a solar system installation will look like once the design for your solar system is approved:

    • First, a solar installer should estimate your energy needs and analyze your annual and monthly electricity consumption, which you can find on utility bills measured in kilowatt-hours (kWh). Such calculations will help to understand potential savings, payback period, and the system size you need.
    • A home energy audit is something every experienced solar company would do to understand the size and output needed.
    • Next question on the list: are your house’s roof conditions good enough for installation? A solar installer should carefully inspect the roof and ensure its conditions and orientation are good to go, how and where to better place solar panels and wire the system.
    • Next, they will design the system and show you how it’s going to look.
    • You will usually need a permit to install solar panels from your local authorities, and the solar provider should handle all the paperwork.
    • The entire process might take up to 3 months, depending on the state and local regulations, while the system installation is usually up to 3 days (might take longer depending on roof conditions and system complexity).
    • The installation crew should always clean up and remove any debris, leaving your house in good condition.
    • When the system is installed, it should be checked and approved by local municipality inspection.
    • If you’re connecting your system to the grid, it has to be wired to your local utility system. You’ll apply for connection through your utility company, which will also want to inspect your system to ensure it’s following utility guidelines. Some installers may help you with this step, so always ask. Once you have all the permits, your system will be up and running, powering your home with solar.
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James Savino

James Savino

As our Chief Writer & Data Scientist James combines his extensive knowledge of renewable energy with a talent for clear, engaging writing. He's instrumental in crafting content that educates and inspires our audience about solar energy.

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