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Climate Seal™ Acoustic Series Window Insert

Climate Seal™ Acoustic Series window insert. Easily removed for cleaning of the primary window while retaining exceptional performance.
X-brand permanent acoustic window. 3X thicker aluminum fixed window eliminated the ability to access the primary window when needed. Performance not equivalent to Climate Seal™ Acoustic Series window insert.

Born from our original Climate Seal™ Thermal Series, the Climate Seal™ Acoustic Series window insert specifically focuses on sound abatement across all frequency levels with exceptional performance while maintaining its discreet look and superior thermal properties. While the Climate Seal™ Thermal Series abates sound by up to 60% from pre-existing levels, the Acoustic Series boasts up to 80% sound reduction with an STC rating as high as 49, which rivals or exceeds the performance of many other competitive products and does so at a significantly reduced cost and aesthetic impact.

The Climate Seal™ Acoustic Series model is an ideal choice for many residential, commercial, and historical applications. Whether you live on a busy street, airplane flight path, or wish to maintain the comfort level of your hotel guests, the Climate Seal™ Acoustic Series window insert will perform extremely well, regardless of the application. Other acoustical window products have you call for a secondary and permanent window layer. We feel this is excessive, bulky and unattractive without an appreciable improvement above and beyond our Climate Seal™ Acoustic Series system. The Climate Seal™ Acoustic Series window insert is easily removed in seconds for access to the primary window for cleaning or maintenance and is just as easily re-applied to protect you from irritating and excessive decibel levels.

Below is a comprehensive breakdown of our performance ratings and results. We've also included a “before & after” scenario on three different primary window applications to illustrate how effective the Climate Seal™ Acoustic Series can be when applied over your primary window. Just like all of our other Climate Seal™ family of products, the Acoustic Series is fully customizable. Custom paint colors and glazing options, wood veneers as well as custom shapes and sizes are all available to ensure performance and aesthetics are not compromised.

Main features


Strong, yet Lightweight

Custom fit

Unique “Bellows” Creates Tight Fit


Keeps In Heat During Winter and Out During Summer

Test Data/Measuring Instructions

Climate Seal Sound Rating – STC
Window Assembly STC* Test
Double Hung Window Double Hung Window 24
Double Hung Window w/Climate Seal Insert 37 ASTM E90
Triple Casement Window Triple Casement Window 27
Triple Casement Window w/Climate Seal Insert 44 ASTM E90
Fixed Window Store Front/Hotel Fixed Window 33 ASTM E90
Store Front/Hotel Fixed Window
w/Climate Seal Insert – 2.5″ Airspace
38 ASTM E90
Store Front/Hotel Fixed Window
w/Climate Seal Insert – 4.5″ Airspace
46 ASTM E90
Store Front/Hotel Fixed Window
w/Climate Seal Insert – 6.5″ Airspace
51 ASTM E90
*STC (Sound Transmission Class) – a rating to represent how well a building partition attenuates airborn sound. The higher the STC number, the greater amount of sound that is lost. This rating targets a noise spectrum surrounding speech levels.
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