The Acoustic Window Insert Series specifically focuses on sound abatement across all frequency levels with exceptional performance while maintaining its discreet look and superior thermal properties.  The Acoustic Window Insert 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.


Size: Custom manufactured to fit seamlessly into existing window assembly.
Dimensions: 3/4″ wide

Custom paint & glazing options.
Also available with wood veneers.



  • Exterior grade PVC extrusion with impact resistance and U.V. stabilization for durability and strength.
  • 3/4″ Wide × 1″ Deep frame. Acoustic Series can receive up to 1/4″ thick glazing.
  • Mitered Corners (except extreme out-of-square applications) to ensure maximum performance and sound abatement.
  • High performance “closed cell” acoustical weather strip foam to further dampen sound vibrations between the primary window frame and the Climate Seal™ steel attachment angle.
  • Half the weight of glass competitors, which can make removal very dangerous with their system.

Other acoustical window products have you call for a secondary and permanent window layer, which we feel is excessive, bulky and unattractive without an appreciable improvement above and beyond our Acoustic Window Insert Series system. The Acoustic Window Insert Series 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.


The Acoustic Window Insert Series 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 Acoustic Window Insert Series window will perform extremely well, regardless of the application.




Acoustic Window Insert 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″ AS
38 ASTM E90
Store Front/Hotel Fixed Window
w/Climate Seal Insert 4.5″ AS
46 ASTM E90
Store Front/Hotel Fixed Window
w/Climate Seal Insert 6.5″ AS
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.