
If you live in South Texas, you know just how intense the summer heat can get. The sun beats down day after day, and your attic can quickly turn into a furnace, forcing your air conditioner to work overtime just to keep your home comfortable.
That’s where radiant barriers come in. These innovative systems are designed to reflect heat away from your home, keeping your living spaces cooler and reducing the strain on your HVAC system.
What Is a Radiant Barrier and How Does It Work?
A radiant barrier is a special kind of insulation designed to reflect radiant heat away from your attic rather than absorbing it. Unlike traditional insulation that slows heat transfer, radiant barriers bounce the heat back toward the roof, keeping your attic cooler. This is especially important in Texas, where the sun’s rays can raise attic temperatures dramatically.
When your attic stays cooler, the temperature inside your home stays more stable. This means your air conditioning system doesn’t have to work as hard, which directly translates into energy savings. In fact, radiant barriers can reflect up to 97% of radiant heat, which can lower attic temperatures by as much as 70 degrees Fahrenheit. That’s a game-changer when it comes to your monthly energy bills.

Why Choose Radiant Barriers Over Other Insulation?
Radiant barriers complement traditional insulation rather than replace it. For example, we install R-30 blown-in fiberglass insulation in attics to create a thermal blanket that absorbs heat, while the radiant barrier reflects it. Together, they form a powerful duo that keeps your home comfortable year-round.
Plus, radiant barriers don’t degrade or lose effectiveness over time like some materials can. At Green Energy of San Antonio, we install radiant barriers made from durable materials designed to last a lifetime. This means you’re investing in a long-term solution that keeps paying off year after year.
How Much Can You Really Save With a Radiant Barrier?
Energy savings are the bottom line for most homeowners. While results vary depending on your home’s size, insulation, and air conditioning system, many of our customers see up to 35% savings on their annual cooling costs after installing a radiant barrier.
Reflecting radiant heat reduces the strain on your AC unit, meaning it runs less often and uses less electricity. Over time, those savings add up to hundreds of dollars back in your pocket. And when you combine radiant barriers with energy-efficient window replacements and proper attic insulation, the impact on your energy bills can be even more significant.
Real Savings, Real Comfort
It’s not just about the money saved. Many homeowners find that their homes feel noticeably cooler and more comfortable after installing a radiant barrier. That’s because the temperature inside the living spaces stays more consistent, without those hot spots near the ceiling or upper floors. It’s a win-win: lower bills and a more enjoyable home environment.
Why Made-in-the-USA Quality Matters
When it comes to products like radiant barriers and insulation, quality is everything. Every product we offer at Green Energy of San Antonio is made right here in the USA. This means you get materials that meet high manufacturing standards and are built to last in our tough Texas climate.
Choosing quality products also means fewer worries about replacements or repairs down the road. Our radiant barriers come with a lifetime warranty, so you can have peace of mind knowing your investment is protected. Plus, our installation process is clean and efficient, with no disruption to your Wi-Fi or cell phone signals.
Why We Don’t Cut Corners
We believe that every home deserves the best, and that’s why we never take shortcuts. From the moment you reach out for a free estimate to the final installation, our team treats your home like it’s our own. We show up on time, respect your space, and make sure the job is done right the first time. That’s the kind of craftsmanship and integrity that sets us apart.

More Than Just Radiant Barriers: Other Ways We Help You Save Energy
While radiant barriers are a fantastic way to reduce energy costs, they work best as part of a comprehensive approach to home efficiency. At Green Energy of San Antonio, we also offer:
- R-30 Attic Insulation: Our blown-in fiberglass insulation fills gaps and creates a thermal blanket that complements the radiant barrier.
- Energy-Efficient Window Replacement: We replace old, drafty windows with high-quality vinyl windows designed to reduce noise and improve insulation. These windows can cut your utility bills by up to 35%, keeping your home cooler in summer and warmer in winter.
Keep in mind, we only do retrofit window replacements, so these are perfect for upgrading your current windows to more energy-efficient models. We have a minimum of five windows per replacement project to ensure the best value and impact.
How These Services Work Together
Think of your home’s energy efficiency like a puzzle. Radiant barriers reduce heat gain from the roof, insulation slows heat transfer through the attic, and energy-efficient windows prevent heat from sneaking in or out through the walls. When combined, these upgrades create a more comfortable home that costs less to cool and heat.
Getting Started with Green Energy of San Antonio
If you’re ready to start saving on your energy bills and enjoy a cooler, more comfortable home, we’re here to help. We offer free, no-pressure estimates with a six-month exact price guarantee, so you know exactly what to expect. Plus, our flexible financing options, including 0% interest plans, make it easier for families to invest in these long-lasting improvements.
We proudly serve San Antonio and surrounding communities like Boerne, Canyon Lake, Cibolo, Kerrville, New Braunfels, San Marcos, Schertz, Seguin, Universal City, and Wimberley. Whether you’re interested in radiant barrier installation, attic insulation, or window replacement, our local team is ready to guide you every step of the way.
Why Choose Us?
As a family-owned business with over 20 years of experience, we understand the unique challenges South Texas homeowners face. Our commitment to honesty, quality, and customer care has earned us over 90 five-star reviews. We don’t just sell products; we build relationships and help families live better.
Ready to see how radiant barriers and other energy-saving upgrades can transform your home? Visit Green Energy of San Antonio today and schedule your free consultation. Let’s make your home more comfortable and affordable to maintain.
Making Your Home Work Smarter, Not Harder
At the end of the day, radiant barriers really do work for cutting energy costs. They reflect heat, reduce attic temperatures, and ease the burden on your cooling system. When combined with quality attic insulation and energy-efficient windows, you’re looking at a home that stays comfortable year-round and saves you money.
Investing in these upgrades means investing in your home’s future. You’ll enjoy lower energy bills, increased property value, and a healthier living environment. And with products proudly made in the USA and installed by a trusted local team, you can rest easy knowing you made the right choice.
Take Control of Your Energy Costs with Green Energy of San Antonio
Ready to beat the Texas heat and enjoy substantial savings on your energy bill? At Green Energy of San Antonio, we specialize in providing top-tier energy efficiency solutions tailored to your unique needs. From radiant barrier installations to high-quality window replacements and attic insulation, our services are designed to maximize your home's energy efficiency and comfort. Don't wait to start saving and living more comfortably. Start saving on your energy bill today.

