How to Soundproof an Existing Interior Wall

Soundproofing your existing interior wall will help you get rid of the muffled conversations from the movie your neighbor is watching.

Soundproofing your walls is a proven way to reduce noise and have a more peaceful living.

Contrary to the initial thought that soundproofing a wall is an expensive and effort-extensive endeavor, there are cheaper ways to do it.

In this article, we’ll tell you about the things you should consider in soundproofing your walls. Then, you’ll learn the different cheap and effective solutions you can use.
Mikkel Holm, Founder of

What to consider in soundproofing your walls?

If you’re thinking of making your way to a store to buy materials for your wall reinforcement, you might need to pay attention to this section.

Here are some of the things you need to consider in soundproofing your walls:

  • Check for gaps and dents as these will help you evaluate and decide which materials to use.
  • Small holes and gaps can be easily remedied by soundproofing sealants.
  • Improving mass and density is a proven way to reduce noise. Check how thick or thin your walls are.
  • Even though you’re planning to add density/mass to your drywall, it will only have little impact if the vibration-absorption property of your wall is not enhanced.
  • Consider replacing some key areas of your wall with high-mass, high-density material. Different materials also vary in effectiveness and prices.

Cheap and effective solutions to wall soundproofing

The peaceful and quiet neighborhood shouldn’t be expensive and much of a hassle. Getting a soundproof wall and canceling out annoying noises is just within your reach.

1. Cover holes in the wall

We’re not talking about those obvious holes on your walls.

If you look closely, you’ll see that there are gaps between the joints of your walls to your windows or between two walls.

These areas are passageways for sounds. Look for any spaces no matter how small. Sound waves can go through them.
Mikkel Holm, Founder of

The solution to this is pretty cheap and easy. Acoustic sealants and weatherstrip tape can be applied to these gaps and holes. Usually, they go hand in hand with soundproofing insulation materials.

Acoustic Sealants and Weatherstrip Tape

2. Put foam mats and panels

One way to add mass and density to absorb more vibrations is to install soundproof foam panels into your walls.

This method is proven to totally tune-out the low-level noises like muffled conversations and background music from TV as well as other airborne noises like traffic from the streets.

This is also a cheaper alternative than drywall. These materials are much easier to install plus they come with an adhesive side so all you have to do is just stick them on your walls.

How it blocks sound is that it functions as an insulator that absorbs the sound vibration upon contact.
Mikkel Holm, Founder of

Acoustic Mats and Panels

3. Repaint your walls using soundproof paints

Soundproof paints are quick and easy to apply.

They’re thicker and denser than the regular paint you usually use. As you know, thicker and denser materials absorb sound vibrations better.

The main components of soundproof paints are latex and sound-absorbing fillers. These materials help dampen noises by 30%.

Of course, they wouldn’t do against loud noises like shouting, close traffic noises, and others. But when used with other soundproof materials, soundproof paints will prove to be a great addition.

Mikkel Holm, Founder of

Soundproof Paints

4. Install new drywall

Installing a new drywall is the most expensive soundproofing solution on this list. But it’s one of the most effective in canceling out noises.

How it basically works is that the materials used in these walls provide a density that can block off louder noises. Those late-night party noises from your neighbor will be taken care of.

quietrock 545 drywall

Just make sure that you measure your walls properly before buying drywalls. You may be needing professional assistance in installing them.

While you’re at it, you might want to buy green glue to seal the holes that can’t be covered by drywall.

Mikkel Holm, Founder of

Soundproof Drywall

5. Move your furniture

Believe it or not, moving your furniture works in soundproofing your wall.

The key principles here are the same as the others. Sound travels and when it hits an obstacle, it loses some of its power and energy.

So in simple words, a mindful arrangement of your furniture will act as obstacles to the soundwaves coming from the other side. The noises will bounce off your furniture and die down in the process.

The best part of this method is that it’s absolutely free! But again, manage your expectations.

Mikkel Holm, Founder of

Wrapping things up…

Walls provide us with privacy and security. But not much of peace and quiet moments if they are not reinforced with the right soundproofing material and methods.

To get that more peaceful and serene experience, integrating soundproofing materials into your wall will do the trick. Don’t worry, the market is filled with these materials and most are available online.
Mikkel Holm, Founder of