15 Best Solar Companies in San Marcos, TX (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in San Marcos based on:
Customer review scores
Service area for San Marcos, TX
Company policies and services offered
Accreditations and certifications
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Average San Marcos homeowner saves $1,593/year with solar panels
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Best Solar Companies in San Marcos
Looking for the top solar companies in San Marcos? Installing solar panels is an exciting project that many homeowners find rewarding for their wallets, communities and the planet. One of the main reasons why many homeowners are thinking about switching to solar power is because it can significantly reduce your monthly utility bills which keep getting higher each year.
Here, we’ll make a list of some of the top solar companies in San Marcos to make your choice much easier.To get free quotes from the top solar companies in San Marcos, click the "get quote" button below.
EcoWatch Rankings for Solar Companies in San Marcos

512 Solar
Prompt Service Delivery
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Consultation
Skilled Repairs
Panel Installation
Cleaning and Maintenance

Smartworld Energy
Free Quotes
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Consultation
Cleaning and Maintenance
System Decommissioning
Skilled Repairs
Panel Installation


Lighthouse Solar
Informative Resources
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Solar Carports
Cleaning and Maintenance
Battery Storage
Consultation
Skilled Repairs

ATX Solar
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Battery Storage
Consultation
Financing Assistance
Panel Installation




The American Power Company
Reliable Customer Support
Free Quotes
Informative Resources
Clear Pricing Policy
Limited information available on website
Services Offered
Financing Assistance
Panel Installation



Greenstar Power
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Cleaning and Maintenance
Financing Assistance
Consultation
Permit Assistance
Skilled Repairs
Panel Installation

NATiVE Solar
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Informative Resources
Limited information available on website
Services Offered
Consultation
Battery Storage
Financing Assistance
Cleaning and Maintenance
Panel Installation


Freedom Solar Power - San Antonio Solar Panel Installers
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Informative Resources
Prompt Service Delivery
Limited information available on website
Services Offered
Panel Installation
Consultation
Off-Grid Solar Systems
Cleaning and Maintenance
Permit Assistance
Financing Assistance
Tesla Powerwall
Battery Storage
Skilled Repairs
Grid-Tied Solar System
Methodology: How We Ranked the Best Solar Companies in San Marcos
EcoWatch's solar experts analyzed each solar company in San Marcos 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 San Marcos
Below are some the criteria we examined specifically for Texas 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 San Marcos
For many people considering switching to solar, the decision of which solar company to choose comes down to total costs.Some key factors that influence how much it will cost to install a solar panel system on your home and how much money you could save over time include:
- Incentives: The federal solar investment tax credit, which everyone qualifies for, lets you deduct 0 of the cost of your solar system installation from your federal taxes. Additionally, not including incentives, you can save about $19,000 over 20 years on your energy bills.
- Typical energy usage: The more energy your home consumes on average and the higher your current energy bills are, the more benefits you’ll see from going solar.
- Your city: This affects the average daily sunlight your roof gets, which helps determine how many panels you need.
- The model of solar panel system you can afford: This is dependent on how much you’re willing to spend upfront.
There are lots of wonderful benefits of solar despite the initial cost of installation. It can help the Earth and your wallet. In addition, it can boost the value of your home, leading to even more benefits if you choose to sell your home later.
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Solar Incentives in San Marcos
One of the great things about installing a solar panel system is receiving incentives from the government.These incentives typically include cash rebates, tax breaks and/or solar renewable energy credits. They can reduce the cost of installing solar panels by 0, upwards of 50% depending on where you live. Take a look at our article on solar incentives to see what incentives you can take advantage of.
Environmental Impact of Switching to Solar in San Marcos
A lot of people want to do what they can for the planet, which for many is the chief reason they’re interested in installing solar panels.Something many might be asking themselves is how much can they really help save the environment by going solar anyway? The average person has a rather large carbon footprint. Between their car, which releases over 10,000 pounds of carbon dioxide emissions every year, and powering their home, it can be overwhelming to think about what to do. Using solar power is one of the easiest things you can do to help.Because solar panels don’t release carbon dioxide emissions into the atmosphere when creating electricity, they’re a good alternative to traditional energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 80 pounds each year. The great things about solar power are infinite — just like solar power is! That's why so many people have been happy with using solar energy.
EcoWatch's San Marcos, TX Solar Company Rankings FAQs
Which solar panel installer is the best in San Marcos?
The highest-rated local solar company in San Marcos is 512 Solar, with a rating of 5.00 stars.
What are the pros and cons of going solar?
The advantages of solar power are that it can decrease or, for some, 100% eradicate your electricity bills, raise your home’s value and lower your carbon footprint. The greatest disadvantages are that solar panels can be pricey to install, you may not save as much if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.
Are solar panels worth it?
Solar panels call for a significant upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.
How often do solar panels need to be replaced?
Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is the amount of energy they produce will have decreased significantly after that point. You can choose 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.