How Soundproof Windows Work

There are many proven ways to soundproof windows.

Some are easy to do yourself without buying anything. But if you’re serious in soundproofing your windows, you might need a lot more materials to use.

Although different approaches and products may provide different noise-reducing experiences, soundproofing your windows will be a worthy task to pursue.

In this article, we’ll show you how soundproof windows work. Then, we’ll also walk you through different soundproofing solutions you can do on your windows.
Mikkel Holm, Founder of TheDIYClub.com

Let’s start! 😀

Why do you need to soundproof your windows? 

Although it may be different for every household, experts say soundproofing your windows can reduce the noises getting into your room by up to 50%.

What does 50% of noise reduction mean to you? How much are you willing to pay to reduce annoying noises coming from through your window?

For some, it will be a better sleep at night. To others, it’s an increase in productivity.

Surely, there are a lot more benefits than disadvantages to soundproofing your windows.
Mikkel Holm, Founder of TheDIYClub.com

How do soundproofing windows work?

As mentioned above, there are many ways to start soundproofing your windows.

Sounds travel through vibration, whether through solid walls or through the air. And guess what? Most windows have gaping cracks or gaps in between.

To reduce the sounds coming in through your windows, you should put a barrier between the sound and the hearer.
Mikkel Holm, Founder of TheDIYClub.com

Soundproofing your window comes at different materials and prices. Generally, soundproofing is done by filling gaps in the frames of the wall and trapping or blocking out soundwaves.

Popular ways in soundproofing include:

  • Adding up mass (getting a thicker wood or glass)
  • Adding up air space
  • Using laminated glass to bounce sound vibrations resulting in reduced transmission of sound waves

How to soundproof your windows?

There may be a lot of solutions here to soundproofing your windows. Examine each one and choose which suits your household better.

Also, the solutions listed here work best when they work together.

1. Eliminates gaps on windows using caulks or weatherstripping

Sound travels in many ways. One of the most common ways is through the air.

Your windows have one or more gaping holes or spaces where sound can get in.

srhome self-adhesive-weatherstrip

Caulks and weatherstrippings are the best materials for fixing such issues. They are also pretty cheap and affordable. In fact, for the solutions with materials you need to buy, they are the cheapest of them all.

Caulks and Weatherstripping

2. Hang soundproof curtains

Although soundproof curtains look exactly like ordinary curtains, they are heavier and thicker due to the materials incorporated into it.

This is one of the most accessible soundproofing solutions you can do. Aside from soundproofing capabilities, most of these curtains can block out light coming from outside.

best home fashion thermal insulated blackout curtains

However, watch out for their maintenance and washing. Since they’re heavier and thicker, they are harder to wash than your regular curtains.

Soundproof Curtains

3. Cover the windows soundproof blankets

Soundproof blankets are very much related to soundproof curtains.

These blankets are commonly called moving blankets. Normally, they are used to wrap furniture and appliances for protection during transport.

audimute sound absorption sheet dampening blanket

When companies knew about the potential use of moving blankets in soundproofing, they started creating ones for studio use.

But don’t worry, there are cheaper ones you can buy that are still effective against sound.

Mikkel Holm, Founder of TheDIYClub.com

Also one of the cheapest solutions to improving the acoustics and noise management in your room. They also come in different sizes, colors, and materials. Mainly fabric but some of them, like acoustic curtains, are induced with MLVs to improve their noise dampening properties.

Soundproof Blankets

4. Use soundproofing window kits

If you are up to a little DIY project, you may enjoy using soundproofing window kits.

They are usually made of foam or sponge which are very good noise-absorbing materials. Some are made up of clear plastic sheet for insulation.

frost king shrink window kit

Installing these on the gaps and other areas of your window can be done with little to no experience.

Most window kits are used to insulate the windows and keep cold rafts out or warm air through. It’s good to remember that most soundwaves are carried through the air. So insulation provides a bit of soundproofing.

Window Kits

5. Add extra layers of glass

Mass is a key factor to dampen and lessen noise. Adding extra of which material you’re using (in this case, glass) is a sure way to lessen noise coming in from your windows.

Adding extra layers of glass could be more expensive than other options mentioned above, but are much more reliable if you’re looking into noise management per se.

Also, this might need labor from a professional window installer which may cost you more.

The major benefit is that you can keep the lighting in your room as opposed to using blankets or putting up soundproofing curtains.
Mikkel Holm, Founder of TheDIYClub.com

6. Rearrange your furniture

Sound travels through the air and bounces off of the obstacles along its way. When this happens, it loses some of its power and dies down faster.

Rearranging your furniture could be a cheap, free alternative for some of the options on this list.
Mikkel Holm, Founder of TheDIYClub.com

By carefully and mindfully placing furniture to sound path causes an immediate obstacle where sound waves can bounce off losing some of its energy.

Here are some tips:

  • Try mixing and matching different texture and position. Uneven surfaces can be a great dampener of echo and sound waves.
  • Consider getting them close to your windows as much as possible.

7. Replace your window with double or triple-pane windows

This is a much more aggressive way of managing noises.

Aside from costing you a good amount of cash, this solution requires heavy construction.

These panes help manage your room’s temperature. So you save energy by using less air-conditioning during summer and heater during winter.

But its main function is to block out the annoying noises coming from outside your room. On several occasions, they can bring the noise down to 50%, which is a great performance!

Just make sure that before these panes get installed, there are no cracks and gaps in your windows. There’s actually no point in installing these if you haven’t addressed the main issue.
Mikkel Holm, Founder of TheDIYClub.com

8. Take out the window

If you’re still not satisfied with any of the options mentioned above, this is the ultimate solution to finally get a soundproof room.

You might want to consider taking the whole window down and block the entire window and fill the space with an installation of drywall or your preferred soundproofing material.

The obvious downside of this is that you will not have a window. That means lesser noise but also no sunlight and fresh air coming in and out of your room. But if you’re converting it to a home studio or home theater, this could be a good solution.
Mikkel Holm, Founder of TheDIYClub.com

Wrapping things up…

As you see, there are many ays you can soundproof a window. But manage your expectations as some of the options mentioned will not be 100% efficient.

There’s no one-size-fits-all approach in dampening the noises going through your window. However, any of the suggestions above can help reduce and manage sounds and help you enjoy an uninterrupted activity.

Consider your budget and your expectations in choosing a viable solution in your noise management at home. You can try one to three suggestions found in this article for a better outcome.
Mikkel Holm, Founder of TheDIYClub.com