How to Soundproof A Bathroom: 8 Best Ways

Flush noise is not the most pleasant one, especially when you have guests at your house. It sounds awkward for both, who is using the bathroom and the one near it.

You must have experienced this situation at least once in your life.

You may wonder that the noise produced by flush and shower is not that loud? But it actually is.

The sound produced by these basic livelihoods ranges from 60 to 80 decibels, the same as of a vacuum cleaner.

Now you would ask how to soundproof a bathroom, but before knowing that, let us look at how sound travels through your bathroom.

The noise produced by the flush, shower, and other things inside the bathroom travel through the floor, pipes, door, and ventilation to other parts of your house.

You can soundproof these with the help of sound-absorbing materials like curtains, soundproof sheets, etc.

Here are the 8 best methods to soundproof your bathroom.

If you follow these, then you will find no problem in soundproofing your bathroom.

how to soundproof a bathroom

How To Soundproof A Bathroom 

Step 1: Soundproof Bathroom Door 

The most obvious thing that allows the noise to pass through it is the door.

Most of the modern constructed houses have hollow doors, as modern construction doesn’t focus much on soundproofing.

So, let us look at how to soundproof a bathroom door.

Use Weather Strip 

The first thing we should do to soundproof bathroom door is to seal the gaps around the door.

Doors have gaps around their edges, which easily allow the sound to pass through them.

The most effective way to seal those gaps would be to get some self-adhesive weather stripping.

Weatherstrips are very good at absorbing sounds and very cheap to buy even.

To install it, measure the length of your door frame and then cut the strips in this measured length.

Then simply remove the back of the strips and apply it to the door frame and press it firmly.

Don’t worry, it will not create any problem in opening or closing your door.

There are several types of weatherstrips available, like foam strips, rubber strips, etc.

But for the bathroom, I will recommend using a rubber weatherstrip.

Use A Door Sweep 

soundproof door sweep

After sealing the gaps around the door frame, there’s still left a gap to be sealed. That’s the gap between the door and the ground.

Having a gap between the door and the ground is very common.

The sound passing through it can be more or less depending on the size of the gap.

Using a door sweep to block that gap is the best way to stop bathroom noise from reaching out.  

Door sweeps are made of thick rubber, which keeps contact with the door and ground, creating a seal when the door is opened and closed.

Besides noise, a door sweep will get also protect your bathroom from the dust getting inside.

Add Mass To Your Door

We have already discussed that modern house doors are hollow which easily allows the sounds to pass through it.

So, adding density to the door will be very effective to abate unwanted noises.  

Now, there are two ways to do that; expensive and cheap.

The expensive way is to replace the existing hollow door with a solid wood door.

Replacing the door will also ask for the help of professionals, increasing the cost even more.

So, I would probably not recommend you do that.  

The cheaper way includes sticking hardboard to your door with the help of green glue.

It works great in increasing the density of your door. The only thing they compromise is the look of your door.

Use Acoustic Blanket 

Now, some of you would not like to stick hardboard to your door as it takes a bit of space, damages the door, and certainly doesn’t look good over the door.

In this case, you can cover your door with acoustic blankets.

Covering the door with an acoustic blanket will be very useful to absorb unwanted noises.

Now, there are two ways to cover your door with a blanket:

  • The first is to nail/glue the blanket to the door.
  • And the second is to hang the blanket over the door with the help of a curtain holder.

The first option, of course, causes a little damage to your door but is more effective than the second option.

Besides their sound-absorbing ability, they are very cheap to buy even.

Also read: how to soundproof a room with blankets

Step 2: Soundproof Bathroom Window 

soundproof bathroom window

I don’t know if you have a window in your bathroom, but if you do, then you need to soundproof it too. 

Why soundproof windows?

Windows usually have air gaps at the edges because of improper installation and most of the windows only have a single pane of glass, which allows the passage of sound through it.

Use Weather Strip

We have already discussed how sound can go through the edges of the door and the use of weatherstrip to prevent it.

Windows too have gaps at the edges and using weatherstrips will seal that gap and eventually increase the soundproofing ability of your window.

Install A Second Layer Of Glazing 

Most of the windows are generally made of single-layer glass panes, which are not efficient enough to block sound.

So, adding a second layer of glazing on the existing glass pane with a gap of 5mm will help a lot to block unwanted noises.

Why to keep a gap of 5mm?

This 5mm gap between the two-layer of glass forms a decoupling zone which works as a sound insulator and prevents the noise from crossing it.

Use Soundproof Curtains 

You can also use soundproof curtains to soundproof bathroom window.

You simply have to hang the blanket over the window and it will absorb all the noise coming to the window.

Step 3: Soundproof Bathroom Walls 

soundproof bathroom walls

After soundproofing the door and windows, the next thing we should look into is how to soundproof a bathroom wall.

It is easier to soundproof a wall while construction rather than later but while constructing a house we don’t consider soundproofing bathroom walls.

So, let us look at some ways to soundproof bathroom walls.

Seal The Cracks Of The Wall

The first thing you should do is to seal the cracks of the wall, if any.

The smallest of these gaps can let a lot of noise through them.

You can use acoustic sealant to seal these gaps.

Simply put, the sealant into the gap and cover the gap thoroughly. You can also apply a second layer of sealant once it has dried.

What is an acoustic sealant?

Acoustic sealant is a rubber-like material that fits in empty spaces and even in very tiny gaps using a caulk gun.

Install Drywall

The idea behind soundproofing is to add mass and density and drywalling is the best way to do it.

What is drywall?

Drywall is a flat panel made of gypsum plaster jammed in between two sheets of thick paper.

Installing 5/8-inch drywall on your walls will help you a lot in insulating bathroom walls for sound.

You can even add two layers of drywall for better results, but doing so will take up more space as it will be thicker than regular drywall.

Install Acoustic Panel

Another method of soundproofing the bathroom walls is to get acoustic panels.

An acoustic panel is a sound-absorbing panel used to alleviate noises and reduce the reverberation and echo within enclosed areas.

They are available in a variety of colors, designs, and shapes to decorate your restroom with.

Step 4: Soundproof Bathroom Floor 

soundproof bathroom mats

Apart from the walls, what covers the most area of a bathroom. The floor, of course.

Soundproofing floor helps to block the noise reaching other parts of the house, especially if your bathroom is above other rooms.

Use Soundproof Floor Tiles

Replacing the ordinary floor tiles with soundproof floor tiles is a good way to deaden the noise reaching down to other rooms.

They are lightweight, durable, and easy to clean, and most importantly, they are very pocket-friendly.

However, relying only on soundproof floor tiles isn’t that good, as they are meant to be used in conjunction with carpets or rugs.

Only using the tiles will not give you the desired results.

Use Rubber Mats 

The easiest way to soundproof a floor is to lay rubber mats and rugs on the floor.

Rubber mats and rugs are very good at absorbing sound vibrations.

And the best part about them is that they are very easy to install. You simply have to buy them and lay them on your floor, that’s all.

There are a variety of rubber mats available in the market which not only helps in absorbing sound but also gives your bathroom an aesthetic look.

Apart from soundproofing, rubber mats also prevent you from accidental slips.

Step 5: Soundproof Bathroom Pipes 

soundproof bathroom pipes

While constructing the bathroom, we overlook the fact that pipes can also create a significant amount of noise in the bathroom.

The fast water flowing in them causes the pipe to vibrate. Sometimes it can be so loud to get noticed by you and others. 

You can reduce the pressure of water with the help of a low flow tap, but this is a temporary solution.

Using mass-loaded vinyl to wrap the pipes is a nice permanent solution.

It has a high STC rating and is very flexible, which makes it easy to wrap it around the pipes.

You may have to take the help of your plumber to wrap the insulation.

Wrapping the pipe with mass-loaded vinyl not only helps in soundproofing but also prevents freezing and offers thermal insulation. 

Step 6: Soundproof Air Vents 

Vents not only allow the flow of air but sound too. Sound vibrations can easily make their way out through the vent.

So, to make it soundproof, you can cover the inside of the vent with acoustic foam.

You can even use soundproof blankets or curtains to cover the air vents.

This will help you a lot to absorb unwanted noise before reaching out.

These tricks will also work if you have an extractor fan in your bathroom.

Step 7: Soundproof Toilet Flush And Toilet Bowl

soundproof toilet flush

Flushing the toilet is the loudest thing in a bathroom.

Yes, it is possible to soundproof the flush if you were wondering. To do that you will only need some adhesive.

Simply open the tank and clean it. Now, wait for the tank to get dry, and then place the adhesive on the edges of tank and the lid and then close the lid.

The adhesive will block the noise to reach out when flushing and when the tank is refilling after flushing.

After the flush, the next thing you should look into is the toilet bowl.

To soundproof toilet bowl, you can stick a rubber pad to the seat and sound dampening rubber jelly button on the lid.

You will have to place a pad on the toilet where the cover touches the tank when it is raised and a pad on the bottom of the toilet seat cover.

Step 8: DIY Ways To Soundproof Your Bathroom 

soundproof bathroom with blankets

Not everyone looking for soundproofing tips has a large budget.

Following the above steps requires spending money ranging from medium to more.

But don’t worry, I am here for you.

I will tell you a few DIY tips which will help you a lot while costing very little or no money. 

So, without wasting your time further, let’s dive straight into them. 

What you can do to reduce bathroom noise is to place thick towels in different areas of your bathroom. They will absorb all the noise inside the bathroom.

Isn’t it a very cheap way to get rid of unusual noise?

The nest tip includes placing things strategically in your bathroom.

An empty room produces more noise than a room with furniture and other stuff.

Try to place different things in different areas of your bathroom like a towel rack, a rack for shampoos, etc.

Wait, where are you going, I have a bonus tip for soundproofing bathroom. Do check that up.

Bonus Tip 

Use White Noise Machine For Bathroom 

A very simple way to get rid of unwanted bathroom sounds is to use a white noise machine.

A white noise machine is a device that produces noise that calms the listener.

It produces sounds like a rushing waterfall, wind blowing through trees, and other natural sounds.

What is white noise?

White noise is a mixture of low to high-frequency sound waves. It is a constant soothing sound that blocks out other unwanted sounds that may disturb a person.

White noise not only helps you eliminate irritating noise but also produces a sound that helps you to relax.

You can use the white noise machine in your bathroom and in other noisy rooms of your house.

You can also use an app called myNoise which works in the same manner as a white noise machine.

Besides white noise, the app also offers pink and grey noise and has over 200 background noises and interactive soundscapes like rain on a tent, distant thunder, a natural waterfall, etc.

At The End Of How To Soundproof A Bathroom 

Soundproofing bathroom is important to make your family and guests comfortable. No one wish to know about what’s happening inside the bathroom except you.

We have discussed different things, from doors to windows, walls to floor, and everything that you need to do to soundproof your bathroom.

Applying these techniques will take a bit of your time and money, but doing so will really help you to soundproof your bathroom.

If you have questions on how to make a bathroom soundproof, then please let me know in the comments.


Q1. How to soundproof a bathtub?

Your bathtub is a place that helps you to relax after toiling all day. You just lay in there and forget everything around you.

Now, what if your relaxing place disturbs you?

I have observed that the bathtub makes a lot of noise while bathing, and this disturbs your comfort.

Hang soundproof curtains around your bathtub to avoid noises while bathing.

They will absorb the noise produced by the tub and thus help you relax.

Try to cover all the areas from your ceiling to floor to make it even more effective.

Q2. How to make an electric toothbrush quiet?

The electric toothbrush also plays a part in producing noise.

The simplest way to avoid toothbrush noises is to switch to a sonic brush. They oscillate much faster than an electric toothbrush and thus make less noise.

You can also wrap the electric toothbrush with a hand towel to nullify the sound produced by the brush.

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