About Window Soundproofing

Updated April 17, 2017

If you're worried about noisy neighbours, traffic or the dog next door, there may be a solution that does not involve replacing your windows.

Soundproofing Windows

Soundproofing your windows can help reduce outside noise by up to 90 per cent, as opposed to replacing the window. Window replacement would only reduce noise by an average of 15 per cent. A soundproof window is a second window that is installed inside your home, with a remaining buffer between the panes. With soundproof windows, you can still open and close them as usual.

How it Works

When soundproofing the window, a laminate glass is used. That material, and the air existing between the windows, stops the vibrations. Laminate is placed on the exterior facing pane of the new glass to reduce noise levels.


Cost depends upon who you buy the window from or if you are a do-it-yourself person. If you go online and purchase Soundproof Windows, the price can range between £227 to £585, according to the size of the window. The company has dealers around the country, so you may contact them for installation, which can take as little as 30 minutes. If you purchase glass and laminate from a local store, such as Home Depot, the price is significantly reduced. Windows range from £78 to £390 depending upon the size. You can install the window yourself or call a local contractor for installation.


Soundproofing your windows will make your home energy efficient, reducing energy costs by up to 60 per cent. The soundproofing requires a tighter seal, thus reducing energy loss. The laminate helps to keep ultraviolet rays from coming through the windows.


Placing a removable, soundproofing plug is an alternative to the soundproof window or laminate. It is a 2-inch thick foam that is placed on a box frame that fits in the sill of your window. Place the box in the window, foam side out, so if you need more soundproofing mat it is easy to add. This alternative will not only cut out sound, but also sunlight. You may remove it at your desire. Both methods will ensure a quiet retreat for you and your family, with no outside interruptions.

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