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DIY Window Soundproofing

Updated February 21, 2017

If you want to have soundproof windows, the easiest way to do it is to install foam in your existing windows. Unfortunately, for some people, this process can be too expensive. This is especially true if you decide you'd like to hire a professional to soundproof your windows for you. If you want to save time and money and enjoy the tranquillity provided by a soundproof room, learn how to do the task yourself. Soundproofing your window will only take a few hours.

Check your window and determine the exact space to target for soundproofing. Run your hand near the edges of the window and feel for air. These tiny spaces are the spots where the outdoor sounds come from. Apply the caulk using the caulking gun on the edges that need sealing.

Measure the exact height and width of the windows using your measuring tape. Use these measurements when cutting out a portion of the 2-inch-thick foam with your utility knife. Follow the exact dimensions that you recorded. Double-check for inaccuracies. The foam cut-out must have the exact same dimensions as the window.

Place the foam cut-out within your window frame. Do not press it too hard against the window. See to it that there’s enough space for air in between the foam and the window. The trapped air will serve as an additional barrier to the sound coming from outside. This is also the reason why you need to accurately cut the foam according the exact size of your window frame.

Seal the edges of the foam with glue or masking tape. The foam will serve as your new window, while the tape or glue will serve as your caulking. See to it that all the edges are covered and there are no cracks where sound or air could pass through.

Tip

As much as possible, use tape when sealing the edges of the foam, especially if you only want to soundproof your windows temporarily. This helps you easily remove the foam anytime you want.

Things You'll Need

  • Caulking gun
  • Caulk
  • Measuring tape
  • 2-inch-thick foam
  • Utility knife
  • Masking tape or glue
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About the Author

Aryeh Raphael has a degree in journalism and has worked with Fortune 1000 companies helping them to increase their online brand exposure through innovative website design, content creation, advertising and marketing. Additionally, Raphael is a writer for a slew of high-traffic blogs, including eHow and Tech Crunch.