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The Lang Exterior, Inc.™ Guide to Energy Efficient Windows

Energy Efficient Argon is an inert gas which means it does not react with many other elements, and is about 25% more dense than air. That is why we offer … Continue reading

April 1, 2014

What is the most energy efficient replacement window?

Krypton vs. Argon One of the most sought after qualities in a replacement window is energy efficiency. Most people however wouldn’t know how energy efficiency can be achieved with different window … Continue reading

April 3, 2012

Learn About Lang’s Enhanced Glass Package

Are you interested in becoming more energy efficient? With Lang’s New Enhanced LowE and Argon Package you can save money on your energy bills, and become more energy efficient. In these … Continue reading

March 29, 2012