How to soundproof a restroom

In this blog, we’ll go through the proven and tested methods for soundproofing your restroom. You’ll be able to go to the restroom, shower, and shave without bothering your family or housemates by soundproofing your restroom.

Restroom noises aren’t normally ones you like to broadcast throughout the home, but due to the design and placement of several modern restrooms, this is precisely what happens. This issue can be fixed by soundproofing your restroom, allowing you to flush the toilet, blow dry your hair, or croon in the shower without bothering the rest of your family.

Unfortunately, soundproofing is rarely adequately addressed in current architecture. You may, however, devise a handful of strategies to keep the sound in your bathroom from escaping.

Of course, soundproofing techniques might range from really inexpensive to somewhat more costly. In the end, you’ll have to figure out what works best for you.

How to soundproof a restroom?

I will explain in detail some of the best methods of soundproofing and discuss tested techniques to deal with each of the major regions of the restroom to prevent noise from leaking.

  • Soundproof the Source of the Noise
  • Soundproof your bathroom door
  • Soundproof bathroom walls
  • Soundproof the floor
  • Soundproof Bathroom Pipe
  • Soundproof Bathroom Window 
  • Soundproof Air Vent 

Soundproof the Source of the Noise

Before considering any soundproofing techniques, you must first address the cause of the noise.

Install toilet cover

In the bathroom, toilets generate a lot of noise. The noise is caused by the seat cover slamming against the toilet seat and flush tank.

If you have a large family with children, the noise can be overwhelming. The only way to keep the noise under control is to urge them to be gentle. Regardless of what you teach them, they will forget and return to their old habits.


  • Install adhesive silicone pads on the commode. 
  • On the toilet cover, utilise the pad. Put the pad where the flushing tank’s cover meets the pad. If you put the cover over the flash tank, the sound it makes will be reduced.
  • Inside of the toilet seat cover, use a different pad. Correct it where the seat cover meets the seat. This method will lessen the amount of noise made when the toilet cover is closed. 
  • Between the toilet and the seat, secure the other pads.
  • As your roommates close and open the toilet, the pads will muffle all noises made by the toilet covering.
Materials Needed
adhesive silicone pads

Wok on the Flush

The toilet flush makes a grating noise. When flushing the toilet or refilling the water tank, the sound is quite loud. We experimented with lowering the toilet flush noise and found that it worked well.

Use adhesives to lessen flush sound. To muffle your bathroom flush, follow the instructions below.

  • Begin by removing the flush cap from the tank.
  • The tank should not be full.
  • Wait until the tank is completely dry
  • Put the cement on the tank edges when the tank dividers have dried. Add another layer of cement to the cap as well.
  • Close the lid on your tank.
  • All noise from within the tank will be muffled by the seal. Alternatively, acoustic foam panels might be used to completely cover the tank.
Materials NeededTools Needed
acoustic foam panelsAcoustic caulking cement

Fill Empty Spaces in the bathroom

Noise from the commode and running water will be amplified by empty places in the restroom. The empty areas reverberate with sound. As a result, strong echoes can be heard in nearby rooms.

Fill your restroom cupboards with acoustic materials as a result. Put fluffy towels on the rack or over the storage containers. These materials will reduce echoes in the bathroom by softening the noise.

Soundproof bathroom pipes

The pipes in the bathroom can generate a rattling noise at times. When flushing the toilet or turning on the faucets, the noise may be too loud. Even if no one is using the bathroom, the pipes may produce noise. If that’s the case, the toilet pipes should be soundproofed.

There are two main methods for soundproofing pipes. You can either fill the pipe cavities with sound-absorbing materials or wrap them in sound-absorbing materials. To get rid of the rattling sound in your bathroom, use both sound absorption and sound blocking materials.

It’s a good idea to insulate pipes as they’re being built. If soundproofing was not done during construction, you can still do it now.

Test the water valve as well. Check to see if the valves are properly placed. Valves that are not properly adjusted produce a lot of noise. Excessively tight valves should be loosened. All other valves that may be too loose should be tightened. The valves mustn’t be too tight or too loose. They should be in good working order.

Soundproof your bathroom door

On the inside, the majority of doors used in interior buildings nowadays are hollow. As a result, they have a limited ability to absorb noise.

The door should be among the initial things to consider while soundproofing your restroom.

Insulating the bathroom door, as soundproofing any other area, can be inexpensive or costly. Getting some self-adhesive weatherstripping is the cheapest option. Follow the instructions to install them.

  • The height and width of your bathroom door should be measured.
  • Cut the self-adhesive weatherstripping to the desired sizes.
  • To seal the door, put the sliced strips in position.
  • From inside, fill in the spaces. Covering your door from the outside will make it appear unattractive.
Materials Needed
self-adhesive weatherstripping

Cotton Roll is another fantastic option for remoulding bathroom doors to make them quieter. Instead of hollowing within the door, you can utilise this simple and practical option.

Cotton is an excellent noise absorbent. This will absorb the majority of the noise while also aiding with restroom insulation. As a result, this is a more effective method of soundproofing the toilet.

The Door sweeps are useful for blocking noise and dirt from the little gap right underneath the door, making your home more pleasant. Because this is merely a clothing bag, it is simple to wash, whether by machine or by hand. You are environmentally conscious and don’t worry, it is also biodegradable. 

We can install door sweep easily by following the instructions below:

  • Using a tape measurer, determine the width of your door.
  • Then, with the clear vinyl seal contacting the bottom of the door, place the door sweep against the closed door. Make a mark on the door surface where you want the sweep to go.
  • Then, using the markings as a guide, remove the liner and force the door sweep into place.
  • Finally, double-check for gaps between the adhesive door sweep and the door threshold.

Heavy-Duty Moving Blankets are a great way to make your restroom door comfier. Many people’s toilets have an environmental issue, and these acoustic blankets help resolve it.

Simply drape these blankets over the toilet door. Ensure the blanket is completely covering it, and don’t worry, the door will shut effortlessly. However, because it is a bit unsightly, its use is optional.

Materials NeededTools Needed
door sweepclear vinyl seal
Cotton Roll
Heavy-Duty Moving Blankets
self-adhesive weatherstripping

Soundproof bathroom walls

Work on the wall if you’ve soundproofed your door but still hear toilet noises from adjacent rooms. The issue isn’t usually with the doors. Toilet noise can be transmitted via thin walls with fractures. On your wall, try the following techniques.

Put a layer of drywall 

Thicken your drywall if it’s too thin. It is the most effective way of reducing noise transmission through them. Sound-deadening materials should be placed between both the drywall and the sound-deadening materials.

This method, however, necessitates specific knowledge. Don’t try it on your own if you’re not an expert in the field. The layer should be added by an expert.

Adding wall layers is also costly. However, it will outperform all other wall soundproofing approaches. The better the outcomes, the denser and thicker the wall is.

If you live in a rental home, consult your landlord, just like we did before changing the door. Make no changes to the residence without first getting their permission.

Apply alternate wall soundproofing solutions if you can’t gain authorization to add more wall layers.

Install Acoustic Foam panels

Acoustic foam panels are intended for use in music studios. They are also suitable for use on toilet doors. The majority of the foams are water-resistant.

All noise that reflects off the wall is absorbed by acoustic foam panels. The majority of the foams are water-resistant. All sound that bounces off the wall is absorbed by acoustic foam panels. All toilet echoes are muffled by them.

How to install Acoustic Panels?

Soundproof acoustic panels should be installed using the soundproof adhesive method, which I suggest.

  • The first step is to sand the surface where your acoustic panel will be mounted. This equalizes out the surface, making it more receptive to the adhesive’s bonding capability. Any sandpaper with a high grit will suffice. Make sure to clear up any dust and debris after sanding.
  • Mark the place where you’ll be installing your panel with a straight-edge leveller and a pencil. This will ensure that your panels are straight after they’ve been hung.
  • The levelling brackets that come with the kit will then be screwed onto the top flange. This will ensure that your panels are installed correctly on the wall.
  • Apply adhesive to the acoustic panel’s back. Begin by applying a line of glue down the panel’s perimeter, about two inches from the edge. Now, using the adhesive, create an “X” to split the rectangle into 4 equal halves. In these parts, place a 2- to 4-inch circle of glue.
  • The final step is to hang the panel on the wall and wait for the adhesive to dry, which should take approximately a day.
Materials NeededTools Needed
Acoustic foam panelAcoustic caulking adhesivestraight-edge leveller

Fill up any cracks in the wall

Thin walls are prone to cracking. The walls of bathrooms, in particular, are subjected to moisture and water. Cracking is more likely a result of this.

As a result, check your wall for any cracks. Fix any cracks with joint compound if you notice them. Next, add one layer and let it dry. You can add another coat the next day to fully seal it. Sand the second coat until it is completely smooth. Finally, use wallpaper or paint to cover the marks on the wall.

Materials Needed
joint compound

Soundproof the floor

By working on your flooring, you can keep the restroom noise from entering the other room. This is incredibly beneficial if your toilet is located above other rooms. The neighbouring rooms will be able to hear everything.

To improve the look of your bathroom, use restroom mats and rugs. All sound echoes will be absorbed by the mats.

Mats and rugs are simple to set up. You simply purchase these and place them on the bathroom floor.

Not all mats and rugs, however, can be used in soundproof restrooms. Only use toilet mats.

Materials Needed
toilet mats

Soundproof Bathroom Pipe

People may notice that their water pipe is shaking, but it is not due to the earthquake. This problem is caused by rapid water movement.

It must be soundproof because it may be very loud at times. You can, however, reduce the water pressure, although this is only a temporary fix.

Furthermore, if you addressed this difficulty during building, you are in the appropriate location; but, if you did not, you must discover another answer.

Because I know you don’t have a lot of money to spend on a bathroom remodel. So I’ve come up with a better approach that won’t cost you as many bucks.

Spiral Pipe Wrap Insulation is a tool that can assist you in this situation but will require professional assistance.

It not only reduces noise but also prevents freezing and provides thermal insulation; nevertheless, leave enough space between the pipe and the wrap to add further insulation.

Simply get wrap insulation from the market and have your plumber wrap the insulation around the bathroom pipes.

They know how to do it in such a way that the sound is kept at bay. So there you have it, a simple way to make the bathroom silent.

Materials Needed
Spiral Pipe Wrap Insulation

Soundproof Bathroom Window 

Work on the windows in your bathroom if you have them. Noise will be able to flow through them. Bathroom windows, for the most part, do not face the rooms inside the house. They do, though, allow sounds to pass outside.

As a result, drape the curtains over the windows. Purchase soundproof bathroom drapes. For maximum effect, use heavy curtains. Heavy curtains restrict any hair and noise from passing through.

Soundproofing blankets can also be used as an alternative. They’ll work in the same way as dampening curtains do.

Try out the soundproofing curtains and blankets that we previously advised. Purchase any of these and apply them to your soundproofing projects.

Materials NeededTools Needed
curtainsA piece of cloth


Trap Shower Noise

If you have interference problems with your bathroom window, it is most likely depending on the materials you used or a lack of correct installation. Because the ability to break up sound is determined by the STC ratings

Three elements of a soundproof window are strongly recommended.

Glass windows should be thick, or two layers with a gap of roughly 1/2′′ are recommended.

The distance between the window panel and the glass should be checked.

Use laminated and plastic glass whenever possible.

So, if these things look well in your window, you’ve likely already done a fantastic job.

However, due to incorrect window installation in the exterior frame, which results in air gaps, it still needs correction. Don’t worry, I’ve got an easy fix for you to make it quieter.

Self-Adhesive Heavy-Duty Weather-strip is the cheapest and simplest solution to close those little gaps around the window frame is to use weather-strip.

To connect this to your door and window, just peel the liner first, then apply it to the window and door. It next firmly pushes the seal and completes the process. 

Soundproof Air Vent 

Air vents are a relatively typical household item that practically everyone owns. However, in most circumstances, it becomes extremely bothersome since the air vent’s extractor fan begins to make noise.

That is why it must also be quiet. It happens if you don’t clean the chamber for a long time, but it could also be caused by other factors.

If you haven’t cleaned the chamber of the air vent, do it first, and then the noise will continue to come out. There’s another reason behind this.

So figure out what’s making the noise, and if it’s your extractor, I’ve got some skills and techniques to make it quieter.

Acoustic Foam is a great material to be used to wrap from inside an air vent to reduce noise. This bathroom fan should be noise-proof.

Make sure to get airy foam rather than rigid foam because your house will need to be ventilated. As a result, acoustic foam is a suitable option.

You can also cover the air vent with a soundproof blanket and curtains. This will be beneficial in reducing noise.

You can also use some elementary science to create a sound maze that will minimise noise levels. I understand that hiring workers would increase your costs, but if you want to do it, you must.

Materials Needed
Acoustic Foam


Finally, soundproofing your restroom is critical for ensuring the comfort of your family and guests. You will also receive some recognition in this manner. If the noise from the bathroom is bothering you, try some of the suggestions above and see what a difference they make.

These soundproofing tools will assist you in doing so, but they will cost some time and money. However, this issue is far more serious than it appears. So get to work on it.

Frequently Asked Questions (FAQs): How to soundproof a restroom?

Is it necessary to soundproof my bathroom?

Bathroom noises aren’t normally ones you would like to spread throughout the home, yet that’s exactly what occurs all too often. Soundproofing your toilet can alleviate this problem, allowing you to sing at the top of your lungs in the shower, blow-dry your hair, or flush the toilet without disturbing the rest of the home.

Does soundproofing foam work?

Foam does not function well for soundproofing because it has insufficient mass to BLOCK sound but is excellent at ABSORBING it. As a result, “acoustic foam” is genuine, whereas “soundproof foam” is a hoax.

Is there a quiet toilet?

The WOODBRIDGE T-0019, Dual Flush Elongated One Piece Toilet with Soft Folding Seat is the greatest quiet flush toilet. A glazed flush system is an innovative aspect that makes it one of the quietest flushing toilets on the marketplace. It’s quiet, but it flushes well, ensuring that there are no leaks or jams.

How do you take a silent shower?

Wrap a cotton rag around the tub spout and fasten it with an elastic band to make a bath flow much more softly. The fluid will move through the fabric with less power and hit the tub basin. The cotton fabric buffers the water pressure, allowing the water to flow into the basin far more quietly.

When the toilet is filling, why is it so loud?

When the tank is filling, a whining noise is frequently created by restricted water flow to the refill valve. Double-check that the toilet’s main shutdown valve is fully open. The tank may not be receiving enough water if this is partially closed. Check the washers on the flapper valve mechanism if the valve is open.

When I flush my toilet, why is it so loud?

Water may not have been flowing properly into the toilet, which is the most typical plumbing issue that causes a toilet to be loud when flushing. At this time, no water is flowing into the refill valve. This makes it more difficult to refill the toilet and acquire sufficient water to flush the waste away.