How To Soundproof Thin Walls? (8 Expert-Tips)

Are the thin walls of your house bringing in too much noise? 

Do you constantly get disturbed by the unwanted sounds coming into your home or workplace? 

Are you wondering about how to soundproof your thin apartment walls?

Soundproofing thin walls is a practical solution to this never-ending problem, regardless of the size of your apartment or where it is located. You’ll probably require a combination of well-known soundproofing materials, such as acoustic foam, soundproof curtains and blankets, rubber materials or vinyl, sound-proof insulation, sawn timber, etc.

Unfortunately, most of us reside in homes or apartments with thin walls. We frequently hear sounds leaking through the walls as a result. Loud discussions, blaring horns, late-night parties, and barking pets can all significantly impact your quality of life. 

There are also other structural sounds, noises originating from pipes in walls, and other disturbances that can keep you from getting any sleep.

However, you do not need to keep up with it. This may conjure up pictures of drained bank accounts and arduous restorations in your mind. However, soundproofing does not have to be expensive to make a significant difference.

soundproof thin walls
soundproof thin walls

How To Soundproof Thin Walls?

Did you know that in the USA, over 30 million people are affected by noise pollution? While soundproofing might not be possible in every scenario, some of us can make do with this affordable yet effective way of cutting down unwanted sounds. 

Adding mass to your thin wall is the only way you can make it more soundproof, the thicker the wall is, the heavier it is. Using most of the soundproof materials mentioned in this article we are trying to add more mass to the wall (or make it more thick).

Be it attaching MVL sheets or using soundproof foam panels, all serve the same purpose of making the wall heavier.

Soundproofing materials can help you regulate the acoustics in your room and block any noise that enters through thin walls. In order to help you attain the much-needed tranquillity in your house, in this article, we’ll discuss different techniques to soundproof thin walls of apartments.

Effective Ways to Soundproof Thin Walls

Here are a few cost-effective strategies for soundproofing thin walls of your apartment.

  1. Use Blankets or Heavy Curtains

We are all aware of how thin residential walls are. So, when it comes to noise, look for the weakest points in your walls. The walls may be thinner in some places than others, so keep that in mind.

There is also a lot of pipework in other areas. These generate the most noise, thus, soundproofing is absolutely necessary.

Check out these pocket-friendly noise-reduction curtains that are available on Amazon for $15.56 a pair. 

Soundproof blankets, usually used in music rooms and recording studios, can help you achieve the desired result. They can reduce noise in your apartment by up to 50% and work well with a soundproof wall kit to block out even the loudest and most bothersome sounds.

Also Read: Do Condos have Soundproof walls?

  1. Bring Home Foam Mats

Foam mats are soundproofing materials that absorb sound and can be used on thin walls. Foam mats, which are often seen in acoustic spaces like recording studios or radio booths, could be attached to the thin walls making the room more soundproof.

Check out the set of 6 pieces Acoustic Foam Mats, available at an affordable price on Amazon. The best thing about foam mats is how excellently they insulate. As a result, they keep your apartment silent and reduce temperature loss. Furthermore, because they are typically made of rubber foam, they are resistant to oil and petrol.

  1. Use Mass-Loaded Vinyl

This unique sheet was made with acoustic needs in mind. One of the best materials for shielding your apartment against outside noise. Additionally, vinyl mats are fantastic at minimising airborne noise, which makes your house quieter. Moreover, because they are thick and cover your walls, they are perfect for winter. They serve as both a thermal and a soundproof solution.
It’s recommended to install Mass Loaded Vinyl sheets against the studs and then put a drywall over it. These sheets are attached to the studs and then after that we can use caulking or barrier tape for covering the joints and seams.

You don’t need to worry if you can’t rip off your wall and make this arrangement, there is an alternative. Simply, find the studs behind the drywall and mark them (use stud finder). Once you’ve marked the studs all you need to do is pierce in the furring strips into the studs through the drywall.

Watch this DIY video on YouTube to learn how to soundproof your space with Mass-Loaded Vinyl.

How to soundproof with MVL sheets
  1. Install Acoustic Foams

These are some of the most widely used solutions for noise issues. As a result, you’ll frequently run into them in theatres and music studios. They reduce noise by up to 70%, but they’re also equally effective at soundproofing walls. They are therefore perfect for reducing loud noises.

Because they are great airborne noise insulators, use them with the preceding techniques for best results. 

  1. Use Acoustic Foam Panels

Similar to foam mats in appearance, these soundproofing materials are entirely focused on absorbing sound waves. Although the fabric and foam do not actually prevent sound, they dilute it. Your thin wall will be more soundproof if it has a foam acoustic panel.

Here’s an interesting survey done on Facebook about “Do soundproof panels keep noise out?” 67% of the people who took the survey felt soundproof panels only help with room acoustics.

survey soundproof foam
survey soundproof foam
  1. Use Green Glue To Seal Holes

As strange as it may sound, your apartments can have holes, and these may act as entry points for outside noise sources.

Even the smallest holes, which are easily missed, produce an extreme level of noise. Therefore, it becomes essential to seal them. There are many sealing products on the market, but green glue works best. The best feature of this glue is that it is a powerhouse at soundproofing holes in addition to sealing them.

Watch this YouTube video to learn how to use green glue to seal holes.

How to control noise with green glue
  1. Use Soundproof Wall Paint

Soundproofing paint comes with soundproofing properties and can be applied to a wall to reduce outside noise.

It’s one of the simplest techniques for soundproofing walls of thin apartments. If you want to minimise low pitch noise, soundproofing paint works best since it mutes noises only up to a specific volume. It works well to reduce medium noise. However, it won’t be able to drown out the noise from a big party. Such loudness exceeds what the paint can withstand in volume.

Due to the thickness of soundproofing paint, adding it to your wall will give it additional mass, which will naturally increase its thickness and soundproofing properties. It is perfect for suppressing low frequencies due to its thickness and other characteristics. Wondering if soundproofing wall paints really work? Watch this detailed video and see it all yourself.

Also Read: Do Townhomes have Soundproof Walls?

  1. Block Out Noise With White Noise Machine

These are small, unique devices that mask outside noise and mimic natural sounds. The background noise helps create a calming atmosphere in the space, which is especially beneficial for those who have trouble falling asleep. It is available on Amazon for a price of $99 USD.

To Wrap It Up!

Choosing the best sound-absorbing material for your apartment will make your life easier and calmer. Soundproofing thin walls by implementing the above strategies will make you feel more at ease because they will relieve the stress associated with excessive noise.


  1. Is soundproofing expensive?
    While there are many things you can do to soundproof your room yourself, you’ll need professional help for isolating any space, soundproofing solutions can start from $10 a square foot.
  2. What is the most affordable way to soundproof a wall?
    There are many cheap soundproofing ways:
    1. Add bookshelves on common walls
    2. Hang heavy curtains/ drapes on the walls
    3. Fill in the empty spaces with furniture or other items.
  3. Will soundproofing stop noise coming through thin walls?
    There are many soundproofing materials that can help you control any noise that enters through thin walls. However, completely blocking the noise may not be possible.