
Energy-Efficient Windows
Transform Your Space
Stay Cool. And Warm. Save Big.
Energy-efficient windows are one of the smartest upgrades for Texas homeowners. Built to block excess heat while welcoming natural light, these windows feature multi-pane glass, Low-E coatings, and insulated frames that work together to lower energy bills and improve comfort year-round.
At Longhorn Windows, we tailor every window—from sleek casements to picture-perfect views—for performance in Texas’s extreme climate. Each style is customizable for energy efficiency without sacrificing durability or design.
Ready to stay cooler and save more? Call (832) 530-4485 today to schedule your free consultation and discover the benefits of Longhorn’s energy-efficient windows.


The Most Energy-Efficient Windows
Creates one of the tightest air seals when closed; perfect for preventing air infiltration. Performs best in both summer and winter.
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.
Fixed (non-operable), so there are no moving parts to let air in or out. Highly efficient, especially when paired with Low-E coatings.
Multiple glass panels can reduce insulation value, but high-efficiency glass packages and professional sealing bring strong performance overall.
Similar performance to double-hung, though the horizontal movement may allow slightly more air leakage. Still strong when paired with proper materials.

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 insulated and energy-efficient windows better for Texas homes?
Insulated, temperature-control windows use advanced glass, gas fills, and durable frames to reduce heat transfer. This helps keep your home cooler in summer and warmer in winter, making them ideal for Texas homes.
How much can I save on cooling bills with energy-efficient windows?
Homeowners in Houston, Sugar Land, and nearby areas often see significant reductions in monthly energy bills. Insulated, energy-efficient windows pay for themselves through year-round comfort and reliable long-term savings.
Why do insulated windows sometimes fog up between the panes?
Fogging occurs when the seal between panes breaks and moisture leaks inside the glass unit. High-quality insulated windows, combined with professional installation, prevent this issue and preserve long-term efficiency.
Which window styles provide the best temperature control?
Double-hung windows improve airflow, while picture, bay, and bow windows boost insulation and style. Choosing insulated window designs helps maximize temperature control and comfort for Texas homes year-round.
Are rebates or tax credits available for energy-efficient or insulated windows in Texas?
Yes, many homeowners qualify for federal tax credits and local rebates on insulated window upgrades. Professional installation ensures your new energy-efficient windows meet all requirements for these savings.
