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Energy Smart

Gentek windows are performance-engineered for advanced energy savings.  Quality-crafted frame and sashes, heavy-duty multi-layer weatherstripping, airtight insulating chambers, compression bulb seal and the PPG Intercept® Warm-Edge Spacer System together help block air infiltration for reduced heating and cooling costs.

For even greater energy savings, choose Gentek windows with one of our BarrierXP® insulating glass packages.  BarrierXP combines multi-layer low-emissivity (Low-E) glass and argon gas along with the PPG Intercept Warm-Edge Space System for maximum energy savings.  Many BarrierXP insulating glass packages meet the latest ENERGY STAR® requirements.  Consult your window professional for the optimal glass package required for your home and climate zone.

ENERGY STAR is a government-backed voluntary partnership program sponsored by the U.S. EPA and the U.S. DOE, which promotes environmental protection and superior energy efficiency in products, buildings and homes.


  • An average household spends more than 40% of its annual energy budget on heating and cooling costs. Gentek windows with BarrierXP insulating glass are over 50% more energy efficient than clear glass units.
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