15 Best Solar Companies in Castle Hills, TX (2024 Reviews)

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

  • Customer review scores
  • Service area for Castle Hills, TX
  • Company policies and services offered
  • Accreditations and certifications

Average Castle Hills homeowner saves $1,597/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

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 Castle Hills

When choosing between the best solar installers, Castle Hills homeowners have more options to choose from than ever before, which can be a lot to consider, but we’re here to make making the switch to solar power that much easier. After 20 years of offsetting your energy costs with a solar system, you can save about $19,000 on your utility bills.


In this article, we’ll help you narrow down the best options in your area.To get a sense of how much it could cost to put solar panels on your roof, you can click the button below to be connected to a certified installer near you.

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Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch Rankings for Solar Companies in Castle Hills

Best Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Smartworld 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 Skilled Repairs
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon System Decommissioning
  • Service icon Panel Installation

Website: https://smartworldenergy.com/
Address: 10300 Heritage Blvd Suite 102, San Antonio, TX 78216
Phone: 2108535656
Outstanding Local Installer
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EcoWatch Rating

5.0/5

RENERGY Solar & Energy Storage Systems

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

Services Offered

  • Service icon Panel Installation

Website: http://www.renergysolar.com/
Address: 5 Pfeiffer Rd, Boerne, TX 78006
Phone: 8307558699
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Delta Solar Power

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

Services Offered

  • Service icon Panel Installation

Website: http://deltasolarpower.com/
Address: 6836 San Pedro Ave Suite 205, San Antonio, TX 78216
Phone: 2106877675
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Erco DER Services - Solar Energy - Energia Solar

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

Services Offered

  • Service icon Panel Installation

Website: https://erco.energy/us
Address: 10518 Gulfdale St, San Antonio, TX 78216
Phone: 2106393818
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Atma Energy

  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://atma-energy.com/
Address: 1430 N Flores St # 200, San Antonio, TX 78212
Phone: 2102472862
Outstanding Local Installer
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EcoWatch Rating

4.7/5

IES Texas Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Skilled Repairs

Website: https://www.iestxsolar.com/
Address: 8718 Business Ct, Converse, TX 78109
Phone: 2106518294
Outstanding Local Installer
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EcoWatch Rating

4.6/5

NATiVE Solar

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

Website: https://nativesolar.com/
Address: 3998 US-290 d, Dripping Springs, TX 78620
Phone: 8552536284
Outstanding Local Installer
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EcoWatch Rating

4.5/5

Texas Solar

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

Services Offered

  • Service icon Panel Installation

Website: http://txsolar.com/
Address: 5631 University Heights Blvd Ste 107, San Antonio, TX 78249
Phone: 2102456600
Outstanding Local Installer
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EcoWatch Rating

4.4/5

TriSMART Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage

Website: https://www.trismartsolar.com/
Address: 2463 Freedom Dr, San Antonio, TX 78217
Phone: 2106222805
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Freedom Solar Power - San Antonio Solar Panel Installers

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Skilled Repairs
  • Service icon Grid-Tied Solar System
  • Service icon Off-Grid Solar Systems
  • Service icon Cleaning and Maintenance
  • Service icon Permit Assistance
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Tesla Powerwall
  • Service icon Panel Installation

Website: https://freedomsolarpower.com/locations/san-antonio-solar-company
Address: 17750 Lookout Rd Suite 605, Schertz, TX 78154
Phone: 2103612883
Outstanding Local Installer
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EcoWatch Rating

4.3/5

Advanced Solar & Electric

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

Services Offered

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

Website: http://www.advancedsolar.com/
Address: 105 TX-539 Loop, Cibolo, TX 78108
Phone: 2105561399
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.2/5

Wells Solar

  • 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 Financing Assistance
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Tesla Powerwall
  • Service icon Consultation
  • Service icon Skilled Repairs

Website: https://wellssolar.com/
Address: 1777 NE Interstate 410 Loop Suite 600, San Antonio, TX 78217
Phone: 2109604282
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.1/5

ADT Solar

  • 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 Panel Installation

Website: https://www.adtsolar.com/
Address: 17245 Jones Maltsberger Rd, San Antonio, TX 78247
Phone: 8334091007
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Erus Energy

  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Skilled Repairs
  • Service icon Panel Installation

Website: https://www.erusenergy.com/
Address: 84 NE Interstate 410 Loop, San Antonio, TX 78216
Phone: 2104370651
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

CAM Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Tesla Powerwall

Website: https://www.gocamsolar.com/
Address: 6631 Topper Run, San Antonio, TX 78233
Phone: 2102273456

Methodology: How We Ranked the Best Solar Companies in Castle Hills

EcoWatch's solar experts analyzed each solar company in Castle Hills 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 Castle Hills


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 Castle Hills

For many people considering switching to solar, the decision of which solar company to go with comes down to pricing.A few key factors that dictate the cost of installing a solar panel system on your home and how much money you could save over time are:

  • How much sunlight your roof gets: This, plus how your roof is set up, affects affect how much electricity your solar panels can make.
  • Incentives: The federal solar investment tax credit currently lets you lower your taxes by 0 of the project cost. Your state and even local utility companies may also have incentives and rebates that you can benefit from. Plus, you can save about $19,000 over 20 years on your utility bills, before factoring in incentives.
  • Your income and budget: This affects what type of solar panels you can buy.
  • average energy usage: The more electricity your household consumes on average and the greater your current energy bills are, the more likely you'll benefit from going solar.

Even though a solar panel system costs a sizable 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 several factors, like the kind of solar panels you get and your current power bills.

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Solar Incentives in Castle Hills

Although solar power is typically a large investment, it can save you a significant amount of money over several years due to reduced energy bills and government incentives.In addition to the federal solar investment tax credit, there are also some local benefits, which in the majority of cases, stack with the federal incentive, so you can save even more. Our article on solar incentives goes over more information on the incentives you can take advantage of in Castle Hills.

Environmental Impact of Switching to Solar in Castle Hills

There are tons of reasons to trade traditional energy for solar power, like saving some money on electricity bills and helping to reduce your carbon footprint.But how much can installing solar panels actually help the environment? Switching to clean energy for electricity instead of using nonrenewable energy is a great way to lower your carbon footprint if you want to help reduce Castle Hills' sizable level of greenhouse gas emissions.In fact, if you install solar panels, you could be looking at reducing your carbon dioxide emissions by about 80 pounds each year. Since solar energy is plentiful and makes electricity without releasing carbon emissions, adding solar panels to your home is one easy step you can take to help protect the environment.

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Best Solar Financing

Blue Raven Solar

★★★★★
4.5
  • Industry-leading in-house financing
  • Competitive pricing
  • Excellent reputation
  • Doesn't offer solar batteries

Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Castle Hills, TX Solar Company Rankings FAQs

Which solar company is the best in Castle Hills?

The highest-rated local solar company in Castle Hills is Smartworld Energy, with a rating of 5.00 stars.

What are some of the major pros and cons of going solar?

A few of the biggest pros are that it decreases your power bills, it’s good for the environment, and it can give you a significant return on your investment (ROI). The most notable cons are that solar panels don’t work as well when there’s limited direct sunlight, there is a high upfront cost and solar panels can be an eyesore.

Is it worth installing solar panels on my house?

Solar panels call for a considerable upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a collection of factors like how much you pay for electricity and the amount of direct sunlight your roof gets.

What are the different kinds of solar panels?

The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also more expensive. Polycrystalline panels are less expensive but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other kinds can’t, such as on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, roof configuration 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.