Energy-Efficient Windows
Transform Your Space
Stay Cool. And Warm. Save Big.
Energy-efficient windows are one of the smartest upgrades you can make for your Texas home. Designed to block unwanted heat while letting in natural light, these advanced windows feature multi-pane glass, Low-E coatings, insulated frames, and argon gas fills—all working together to lower your energy bills and boost indoor comfort year-round. Whether you're battling triple-digit summers in Houston or seeking quieter, cozier interiors in Pearland, these windows do more than just look good—they work hard for your home.
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At Longhorn Windows, we specialize in high-performance window solutions tailored to Texas’ unique climate. From sleek casements to expansive picture windows, every style can be customized for maximum energy efficiency without compromising on style or durability.
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Ready to stay cooler and save more? Call (832) 530-4485 today to schedule your free consultation and discover how our energy-efficient windows can transform your space.
The Most Energy-Efficient Windows
#1
Creates one of the tightest air seals when closed; perfect for preventing air infiltration. Performs best in both summer and winter.
#3
Fixed (non-operable), so there are no moving parts to let air in or out. Highly efficient, especially when paired with Low-E coatings.
#5
Similar performance to double-hung, though the horizontal movement may allow slightly more air leakage. Still strong when paired with proper materials.
#7
Tempered glass is about safety, not inherently about insulation. But when combined with double-pane and Low-E coatings, it can perform well.
#9
Common and affordable, but only the bottom sash opens, making it harder to clean and seal. Less efficient than double-hung unless heavily upgraded.
#2
Offers better ventilation control and air sealing than single-hung. Can be upgraded with insulated frames and Low-E glass.
#4
Multi-layer laminated glass not only protects against storms but also blocks UV rays and heat transfer. Often comes with energy-efficient glazing by default.
#6
Multiple glass panels can reduce insulation value, but high-efficiency glass packages and professional sealing bring strong performance overall.
#8
Performance depends entirely on design. Can be extremely efficient if built with high-performance materials—but also may include unconventional shapes or larger glass areas that increase solar gain.
#10
Strong and durable, but aluminum conducts heat easily—making it less ideal for Texas climates unless built with thermal breaks (which can raise cost).
Casement windows offer a clean, modern look with superior energy efficiency—perfect for maximizing natural light while keeping your Texas home cool and comfortable.
Double-hung windows combine timeless style with modern energy-saving features—perfect for improving airflow and efficiency in Texas homes.
Need some answers? Here are some FAQs.
What makes a window energy-efficient for Texas homes?
Energy-efficient windows are built to block heat while keeping your home cool. Key features include double or triple-pane glass, Low-E (low-emissivity) coatings, argon gas fills, and insulated frames made from vinyl, fiberglass, or thermal-break aluminum. These upgrades reduce heat transfer—crucial for surviving the brutal Texas summers without driving up your energy bill.
How much can I save on cooling bills in Houston, Sugar Land, or nearby areas?
ENERGY STAR®-rated windows can cut your energy use by 7–15% annually—which could mean hundreds in yearly savings, especially during peak summer months. Many homeowners also qualify for federal tax credits and local utility rebates, making the upgrade even more cost-effective.
Which window styles are best for energy efficiency?
Longhorn Windows offers multiple styles that can be optimized for energy savings, including casement, double-hung, picture, sliding, bow & bay, and even impact or tempered glass. No matter your style, we can customize it with energy-efficient glass, insulated frames, and performance coatings tailored for Texas conditions.
Can I get rebates or tax credits for installing energy-efficient windows in Texas?
Yes! ENERGY STAR® windows installed by Longhorn may qualify for federal tax credits up to $1,200/year under the Inflation Reduction Act, plus local utility rebates in certain areas. Our team helps you handle all paperwork to maximize your benefits.
Is professional installation really that important for energy-efficient windows?
Absolutely. Even the best energy-saving window won’t perform if it’s installed poorly. Longhorn’s certified installers ensure a precision fit, airtight seal, and proper flashing, so your windows meet ENERGY STAR standards and deliver real savings—not drafts or condensation.