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The Pros and Cons of Argon-Filled Windows

Insulated windows can be filled with either argon or krypton, with argon the more popular choice. Why do manufacturers prefer argon over krypton? And what are the benefits of argon-filled windows?

Cost and Energy Efficiency

Argon and krypton are odorless, colorless, non-toxic gases that help prevent heat transfer. The primary reason why manufacturers prefer argon that it’s cheaper. Krypton is more expensive because it has higher insulative capabilities than argon. As such, compared to krypton-filled windows, argon-filled windows are less energy-efficient. However, this doesn’t mean argon windows are inferior to krypton-filled windows.

Glass Coatings and Insulative Frame Materials

To increase argon-filled windows’ energy-efficiency, manufacturers often add glass coatings and use frame materials with excellent insulative capabilities. Keep in mind that one feature alone won’t make your windows energy-efficient. When looking for an energy-efficient window, you need to take into account the total window performance.

Renewal by Andersen offers a wide range of energy-efficient frame materials and glass coatings. Our exclusive Fibrex® composite has excellent insulative capabilities, while our High-Performance™ Low-E4® SmartSun™ glass is our most energy-efficient glass option. Compared to a standard dual-pane window, windows with Low-E4 SmartSun glass are 70% and 49% more energy-efficient in summer and winter, respectively.

Renewal by Andersen’s Signature Service

To learn more about your window options, you can schedule a free consultation with one of our design experts. As part of our Signature Service, Renewal by Andersen offers free consultations so we can learn more about our customers’ needs and manufacture custom windows according to their preferences.

Want to learn more about our Signature Service? Renewal by Andersen of Oklahoma offers a wide variety of premium windows, including Fibrex and picture windows. To schedule a free consultation with our design experts, call us at (918) 921-9211 or leave us a message here. We serve homeowners in Tulsa, OK, and the surrounding communities.


"Our new windows are absolutely wonderful! We were pleased with the entire process and the product and would recommend Renewal by Andersen to anyone."

Mike & Kathy, Edmond| OK
November 5

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