15 Best Solar Companies in Union, MO (2024 Reviews)

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

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

Average Union homeowner saves $1,379/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 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 Union

If you’re a homeowner looking to take advantage of the solar incentives in Union, it can be challenging to narrow down which company to go with. But, the hard work is worth it since adopting solar energy is often a good idea. Plus, the solar industry is thriving in Union, giving homeowners access to some of the most respected solar panel installers in the country.


If you want to take advantage of the great number of perks of solar, we’re here to help you narrow down your options to find the Union solar installer that’s right for you.If you want to receive free, no-obligation quotes from the top Union solar companies, you can click the button below to learn more.

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 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 Union

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

SunSent Solar

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

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

Streib Company

  • 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 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

4.9/5

StraightUp Solar of St. Louis

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

Services Offered

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

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

5.0/5

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

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

4.2/5

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

Sustainable Solar

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

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

3.0/5

Solar city stl

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • 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 Cleaning and Maintenance
  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • 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
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EcoWatch Rating

3.0/5

Helio Solar Power, LLC.

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Solar Carports
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs

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

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

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

4.9/5

Route 66 Solar

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

Services Offered

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

Website: https://route66solar.com/
Address: 2110 Troy Rd Suite B1, Edwardsville, IL 62025
Phone: 6189001280
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Solar Luxury LLC

  • 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 System Decommissioning
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Off-Grid Solar Systems
  • 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

AKA Solar LLC

  • 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 Consultation
  • Service icon Panel Installation

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

3.0/5

BKJ 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 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

five stars electric and solar LLC

  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • 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
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EcoWatch Rating

3.0/5

Pyramid Electrical Contractors, Inc.

  • Con icon Limited information available on website

Services Offered

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

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

Methodology: How We Ranked the Best Solar Companies in Union

EcoWatch's solar experts analyzed each solar company in Union 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 Union


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 Union

For many people considering switching to solar, the decision of which solar company to choose comes down to prices.A few important factors that affect how much it will cost to install solar panels on your home and how much it could save you over time are:

  • The amount of sunlight your house gets: Because of Union’s high amount of average daily sunlight, you should be able to save a decent amount on your power bills.
  • The make and model of solar panels you’re planning on getting: Higher-efficiency panels are more highly priced, so that will shape your budget for your solar project.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you receive a tax credit curretnly worth 0 of your total installation cost, your local government may offer additional tax exemptions, credits or rebates that will help you save even more. Not including incentives, you can save an average of $16,000 over the first 20 years with your solar panels, too.
  • average energy usage: The more energy your household consumes on average and the greater your current electricity bills are, the more likely you'll benefit from making the switch to solar.

Though a solar panel system costs a good chunk of money upfront, it can save you much more over time. The question of how much, though, depends on a number of factors, including the size of your solar panel system and incentives.

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Solar Incentives in Union

If you’re thinking about making the switch to solar power, a variety of government incentives and tax credits can greatly reduce the cost of the project and expedite the return on your investment.In addition to the federal solar investment tax credit, there are also some state- and city-level programs, which in most cases, stack with the federal incentive, so you can save even more. You can find out about the incentives you can take advantage of in our article on solar incentives

Environmental Impact of Switching to Solar in Union

Installing solar panels is a great way to do your part for a more eco-friendly future.You may be wondering – how much does making the switch help the planet anyway? One thing that can drastically shape your carbon footprint is how long your commute is and how much you drive altogether. If you switch to solar power and drive an electric car, you can vastly cut back on your carbon dioxide emissions by charging your car at home.Once you go solar, your carbon footprint can be reduced by about 100 pounds a year. For those who want to help 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 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 Union, MO Solar Company Rankings FAQs

Which solar panel installer is the best in Union?

The best local solar company in Union is SunSent Solar, with a rating of 4.90 stars.

Are solar panels really bad for the environment?

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

Are solar panels worth it?

Solar panels can be a beneficial investment for a majority of homeowners, but honestly, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your electricity bills are already reasonably low, solar panels might not be for you.

How long do solar panels last?

Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they should be disposed of. What this means is how much energy they produce will have decreased significantly after that point. You can opt to replace them once you've had them for that long or you can continue to use them at a lower efficiency after that time.

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.