How to Soundproof a Window

how to soundproof a window

If you’re interested in window soundproofing, you may not know where to begin. Of course, you could hire professionals who know how to soundproof windows, but if you’re a DIY enthusiast, you probably see an opportunity to save some money here by doing it yourself.

You could sidestep the window soundproofing issue by installing soundproof windows, but this kind of extensive remodeling may not be what you’re looking for, and you’ll definitely have to bring in professionals for that.

We have conducted years of research into window soundproofing methods and we have not found anything that fully soundproofs a window while allowing it to be transparent. The tips reviewed below are your best options to reduce sound transfer between the outside world and your home, but we cannot fully guarantee complete soundproofing as the technology does not exist.

Why Would Someone Be Interested in Soundproofing Windows?

Noise pollution can be a huge problem, especially if you live in a highly populated area or a high-occupancy apartment. Sounds like construction, music that neighbors may play at all hours of the day or night, crying children or even the general sounds of daily life may intrude into your home and become a nuisance. You might find your sleep, concentration and conversations disrupted.

Your window is designed to let things into your home — mostly light and air — but it also lets in sound, even when it’s closed. Taking steps to soundproof your window can go a long way toward reducing that interfering noise, leading you to more restful nights, reduced stress and more pleasant social interactions.

How to Get Started With DIY Window Soundproofing

You’ll want to start by sealing off any air gaps in your window with foam or Acoustic Sealant. Proper insulation is the key to soundproofing your window. Add thick insulation tape to the bottom of the window and the area where the window meets the sill. Once any areas where sound can get through are fully covered and sealed with soundproof foam, tape or insulation, you should be protected from most noise pollution.

The next step is to soundproof the walls surrounding the window. You have a number of choices when it comes to how to do this, from adding soundproofing barriers to soundproofing acoustical panels and soundproofing tape. You can find a full assortment of the materials you might use to do the job at

DIY Window Soundproofing Tips

  • Before beginning, make sure your window is in good repair. If you have a crack in the window, that may be how a lot of the sound is coming in. You can try to repair the crack, but in this situation, it’s probably a good idea to get the pane replaced before beginning any soundproofing efforts.
  • Once you’ve insulated the window for sound, you may want to invest in a blackout curtain. Blackout curtains are designed to prevent light from getting into your apartment or home when you’re trying to sleep, but you can find some that are designed to block noise, as well. The combination of a soundproof window and a noise-cancelling curtains should give you the relief you need.

For successful DIY soundproofing, it’s crucial that you have the right materials. You can find all manner of high-quality, highly effective sound-absorbing and sound-deadening materials at Soundproof Cow.

We carry soundproofing seals and sweeps, soundproofing foam, soundproofing insulation and just about everything else you could need to complete your DIY window soundproofing project. To look at the selection of great soundproofing materials in order to start your window soundproofing, head over to Soundproof Cow now.

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