Noise Blocking Window Film: What Is It and How Does It Work?

noise blocking window film

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Noise is an inevitable part of our lives. It’s everywhere around us.

That’s why we try to think of as many solutions as possible to control the sound level in our homes.

If you have been with me reading my various tips on soundproofing, you have seen that practically every part of your house can be treated for soundproofing.

Doors, window frames, machines, glass panes, etc, whatever comes to your mind, you can make it more silent and create a peaceful atmosphere.

Here I shall tell you more about noise blocking window film. You will find out what it is and how it works as well as how to pick the best soundproof window film for your situation.

Moreover, I have found some interesting scientific discoveries on this subject to share with you.

noise blocking window film

What is noise blocking window film?

You are probably familiar with the fact there are many different types of windows based on their material and number of layers.

These are the factors which significantly influence the soundproofing properties of that window.

Some of them will have a more significant soundproofing effect, some will be more thermally efficient.

It’s an interlayer film sandwiched between two external layers.

The layer in the middle is the one with sound insulation properties and it is known as a core layer.

The “main task” of this core layer is to reduce sound transmission and block noise.

Most window films are made out of plastic vinyl or environmental PVC or with sticky adhesive that can reduce the vibrations in the window by creating an even tighter seal on the edges.

Not only that, window soundproofing films can have decorative features along with energy saving properties.

3 Best Soundproof Window Films

While some people prefer a dark room with soundproof curtains, others enjoy sunlight coming into the room during the day.

There are few things you can do to improve the soundproof properties of your windows with window film. Even though they are very thin, a soundproof window film works by reducing vibrations in the glass pane. It slows down vibrations coming from sound hitting your windows.

Let's look at some of the options available. 

  1. Yuzzy Magnetic Insulation Kit 

The Yuzzy Magnetic Window Insulation Kit is made out of fiberglass and completely seals the entire window frame and acts as a sound dampening film.

We love this window film from Yuzzy because it's really hassle free and easy to install. It's not your typical glue film that leaves everything messy. Instead this wonderful window film uses magnetic strips that snap to the frame.

noise blocking window film is a type of soundproof window film

Simply peel off the protective seal and press the magnetic film into the window frame. Cut off the excessive grooved tape for perfect finish.

The magnets are permanent but can be easily removed if you need access for cleaning purposes. You can use a wet wipe or vacuum cleaner with no issues.

This glass film stops additional vibrations in the glass by filling dead air space. This results in less energy being transferred.


  • Very easy installation
  • Cheap insulation kit for most windows
  • Includes flame retardant fiberglass mesh, magnetic tape, plastic strip, two bags of accessories  
  • Very durable
  • Waterproof
  • Chemical resistant


  • May be hard to fix in certain windows
  1. Volcanics Window Privacy Film

If you like stylish decorations you will love this frosted 3D window film from Volcanics.

When it comes to window films, Volcanics really stands out with it's rainbow-like effect that not only reduces sound vibrations but also blocks up to 96% of UV light.

This will help your furniture and floors stay fresh for a long time, preventing the colors from fading.

We fancy the elegant look of this film on our windows giving them a fresh look.

If you are dealing with rattling windows, this film will provide a tighter seal making any room quieter.

best window soundproofing film to reduce noise


  • Rainbow effect
  • Blocks 96% UVA rays
  • Reduces glare by 79%
  • 100% privacy protection


  • Does not let natural light in
  • Soundproofing could be better
  1. Duck Brand Window Shrink Film

If you are dealing with drafty spaces, the Duck Shrink Film is the way to go.

Old buildings such as houses in windy areas produce a lot of humming sounds indoors.

This shrink film will not only keep off the draft, improving the overall sound quality indoors, but it will also save you on heat bills as it has a thermic effect in freezing temperatures.

Once installed properly, you will notice substantial noise reduction in your home.

We've installed this film from Duck Brand in a house in Northeast on a hill where there are strong winds blowing half of the year.

Not only did we not see the films with curtains up, the rattling sound in the window panes was reduced significantly.

Before the curtains would move when the wind was blowing hard, not they never move.

Overall, this film reduces noise significantly in buildings with windy conditions.

Duck Brand is easily attachable to the outer perimeter of the window pane which fills up dead air space for a soundproofing effect.


  • Different size available
  • Cheap
  • Easy to install
  • Stops drafts and blocks exterior sound


  • Can rip off sometimes

How does noise blocking window film work?

The whole process is pretty much simple. The sound travels and comes across an obstacle, in this case, a window.

A window with sound-blocking film absorbs the sound and the moment the sound is inside the room, it’s already significantly less loud.

Just to mention, there are also films with different insulation properties. So, you can also find films which reduce the heat and the light.

They can come either as one, or multipurpose (such as heat and sound insulation or heat and light insulation).

window plug

Speaking in terms of frequency, a human most distinctively hears ranges from 1000 to 4000Hz.

As for the noise blocking window film, it can reduce the noise up to 5 decibels.

That’s something a human ear can hear as a significant difference.

It’s very important to note that not all the windows can be made as multi-layered.

If this option sounds attractive, look for manufactures which are specialized in making such windows.

Benefits of noise blocking window film

As you can see, this surely is an interesting mechanism for noise reduction.

Making the world a bit quieter gives each one of us much needed peace and comfort.

Here's why this film is an excellent solution:

Soundproofing properties

The added layer reduces vibrations in the glass, lowering the amount of outside noise.

Gives more privacy

Many products are beautifully decorated in different shapes and patterns as well as having a stained look.


Most films work with single glass, double glazed windows, laminated glass or thick heavy glass.

Energy saving

Some window films are energy efficient and due to being able to keep heat inside the room.

Blocks UV Rays

Most window films can block up to 99% of harmful UV rays and prolong the life of your furniture and floors.

Improves sound quality

Rattling and vibrating glass can significantly deteriorate the sound quality in music studios. This problem can be easily solved with glass film.

Decorates your windows

Window panes don't have to be boring anymore with stylish window films. Many of them feature lamination and interesting effects such as rainbows or stained glass.

  • Reduces the noise significantly.
  • Gives more privacy.
  • Can be used with different types of glass.
  • Some of them are thermally efficient.
  • It’s perfect for offices and meeting rooms.
Benefits Of Noise Blocking Window Film

The amazing science behind noise blocking film

Some people decided to push the limits and make this already fantastic invention even more outstanding. But is it really the best soundproofing material out there?

A group of scientists in Singapore, I may freely say, made the pure art out of noise blocking film for windows.

Their idea was to create a transparent film which will not only block undesired noise but play music as well.

That’s right! You will not only eliminate the nerve-wracking sounds but you get to enjoy the most relaxing music.

This window film is made of polymer strengthened with transparent lamination.

It uses the same principle as noise-canceling headphones.

window frame with soundproof window film

This means that the film moves in response to changes in electrical voltage.

However, there’s even more than this.

There are two layers of windows in staggered position and their task is to channel the outdoors noise.

The noise goes through a short passageway between the layers and before it gets into the room, the speakers lining the window “destroy” the noise.

This means that the window can remain open. It’s a significant breakthrough, particularly during warm summer days!

An innovative technology like this is indeed promising. It’s not only technically innovative and superb but financially acceptable.

The scientists are so far worried that perhaps it will be a bit difficult for people to accept it, as this window is a bit more complicated than the normal one.

Cost to Soundproof a Window

However, when things are practical such as this one is, and above all- when they solve the issue of noise coming from outside, accepting them shouldn’t be a problem!

The Importance Of STC Ratings

If you are already into soundproofing tips and tricks (after all, you are reading this), you have surely seen STC ratings mentioned rather often. What is it about?

Simply put, Sound Transmission Class (STC for short) is used to determine the ability of a certain material to reduce the sound waves.

Materials with high STC can block more sound.

Why do I mention this here?

Believe it or not, a window is where the noise comes through the most, so it is of vital importance to be familiar with STC ratings for materials the window’s made of.

Moreover, find out at least the approximate values of materials you are planning to use for soundproofing windows.

And finally, doors, walls, etc, they all have some STC rating, and it’s important to take them into consideration as well.

stc ratings for windows

Only when you know all these, will you be able to determine how useful certain material will be, and what to expect from it.

When you decide whether noise blocking window film is the right solution for you, a few key aspects should be considered:

  • Budget
  • Number of windows you want to treat with soundproofing material
  • The level of noise you want to reduce

Alternative solutions for soundproofing windows

When you start looking for different ways of soundproofing a window, you will see that solutions are numerous.

They differ in price and materials used. Some of them are more, some less aesthetically appealing.

Noise blocking window film is an excellent thing, however, it may be a bit pricey.

If you want to find the most appropriate solution both in terms of money and the specific way to soundproof a window, you need to answer a few questions:

  • What’s the frequency of the sound I am trying to eliminate/reduce?
  • Do I need to soundproof only one or multiple windows?
  • How much money am I willing to spend?
  • Am I going to have it done by professional or by myself?

Once you answer them, you will definitely be a step closer to finding the right solution. Mind the aspect of aesthetics.

Some solutions may compromise the elegance of your space, and that’s not what you want.

You want both things to be balanced, to work in harmony.

double pane windows

Additional Ideas For Window Soundproofing

  • Use noise reduction curtains
  • Seal all the gaps in your window
  • Replace the windows completely
  • Use acoustic foam
  • Window plugs
  • Window films
  • Mass loaded vinyl
  • Double window glazing
  • Soundproof blankets
  • Install external storm windows

Final Word On Noise Blocking Window Film

Whatever does the job in reducing the annoying noise, I say, try it, it’s worth it!

As we all live too fast, surrounded by constant noise, having it silenced even a bit means a lot.

And if your budget allows you to, you can even enjoy having that amazing discovery - a glass pane which blocks the unpleasant sounds and plays music!

Is it the right one for you, see for yourself. Not all of us have the same problems regarding noise, therefore different things work for us.

Have you had any experiences with this? Share them if so!

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