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3 Top Picks for the Most Energy-Efficient Window Styles

As homeowners become more energy-conscious, they’re increasingly aware of the importance of conserving and sustainably managing our nation’s energy resources. By choosing highly energy-efficient windows and doors, you’ll be doing your part to conserve energy and achieve a “greener” home by minimizing the cost of heating and cooling.

energy efficient windows in winter

Designed for Efficiency

Some window designs are inherently more efficient than others due to their design. Investing in the following styles from Renewal by Andersen of Northeast PA will give your home the added beauty, security and comfort you want.

  • Picture windows. Since picture windows don’t open, they’re the most energy-efficient window style you can install. Due to their large size, glass choice is an especially important consideration with picture window units. Renewal by Andersen® Low-E4 SmartSun™ with HeatLock™ Glass offers the ultimate efficiency for picture windows in the Northern Zone.
  • Casement windows. Casements are second only to picture windows when it comes to energy efficiency. Renewal by Andersen casement windows swing smoothly outward and close just as easily with a low-profile lever that fits neatly into the frame when not in use. Meanwhile, a multi-point locking system presses the sash tightly against the frame, resulting in a weather-tight seal with minimal air leakage. The harder the wind blows, the tighter a casement window seals!
  • Double-hung windows. Both sashes on a double-hung window are operable, so it’s imperative that they seal tightly. Renewal by Andersen double-hung windows are designed with air and water barriers and weatherstripping around the perimeter of the sash to cut down on air infiltration.

How to Determine a Window’s Efficiency

With ever-increasing utility costs to consider, it’s important to maximize your savings by choosing the most efficient window that meets your needs. That’s where the ENERGY STAR® label comes into play. Windows with the ENERGY STAR label have been independently tested to perform to strict efficiency standards set by the U.S. Department of Energy. When you see this label, you’ll know you’re purchasing an energy-efficient product.

Get Help From the Pros

Renewal by Andersen of Northeast PA takes pride in offering a wide selection of windows and replacement doors. These exceptional products meet or exceed ENERGY STAR energy efficiency performance criteria. To find out more, call us today at (610) 355-4055 and schedule a free, no-obligation replacement window consultation in Bethlehem, Allentown or surrounding areas in Northeast PA.


"Our installation team, Josh and Mike, did a phenomenal job with the installation, cleanup, and "orientation" after the work was completed! We were totally satisfied with everyone that we dealt with before and after the installation...and would surely recommend Renewal by Andersen to anyone contemplating a window replacement project!"

Kathy B.
Nazareth, PA

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