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Energy Savings

Energy Efficient Design

SmartSun Glass

Homeowners in Long Island & throughout the U.S. turn to Renewal by Andersen® for energy efficient windows and doors that will save them money on monthly bills. Each window produced by Renewal by Andersen utilizes energy efficient materials that are designed to limit the amount of energy needed to maintain a comfortable living environment in your home.

Low-E Glass

Renewal by Andersen windows utilize one of two distinct Low-E glass packages. Here is a look at how much energy can be saved by these advanced glass packages:

  • High Performance™ Low-E4® glass is 45% more energy efficient in summer and 56% more energy efficient in winter as compared to ordinary dual panel glass.*
  • High Performance™ Low-E4® SmartSun™ glass is 70% more energy efficient in summer and 45% more energy efficient in winter as compared to ordinary dual panel glass.*

If your existing windows do not utilize Low-E glass, you can see just how much you are overpaying each month for energy. Replacing them can free up that money for other ventures.


Renewal by Andersen’s exclusive Fibrex® material offers the strength and insulating value of wood with the low maintenance features of vinyl. Fibrex material also blocks thermal transfer nearly 700 times better than aluminum to help reduce heating and cooling bills. Plus, Fibrex will not crack, pit, corrode, or rot* like wood or vinyl, which helps to eliminate energy leaks.

Custom Fit Windows

Even the most advanced window materials will not work at peak energy efficiency if not properly installed. That is why Renewal by Andersen custom fits each window to fit the home in which it is to be installed. This ensures a durable, weather-tight seal that prevents energy leaks.

All of these factors will contribute to energy savings when you turn to Renewal by Andersen of Long Island for window replacement on Long Island.

*Values are based on comparison of Renewal by Andersen® double-hung inserted window SHGC to the SHGC for clear dual pane glass non-metal frame default values from the 2006 and 2009 International Energy Conservation Code.

“Renewal by Andersen” and all other marks where denoted are trademarks of Andersen Corporation. © 2019 Andersen Corporation. All rights reserved.


"I was very impressed with Renewal by Andersen. They showed up in time and we received several follow up phone calls as the installation was being done as well as the sales representative stopping by to check in on the installation. The delivery/ installer was very professional. I would highly recommend Renewal By Andersen."

February, 18

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