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10 ideas for cheap or even free sound insulation!

Although the modern urban lifestyle is comfortable in the whole life, it certainly has some significant weaknesses. One of the most annoying problems that you will face sooner or later is noise pollution. If you are wondering how to insulate a room cheaply, then you probably have this problem like many others.

Do not despair. You do not need to use expensive studio equipment to reduce the volume. You can soundproof a room very cheaply, you just need a few ordinary appliances and a little creativity to make a fundamental change in the environment. Even when you have learned the basics of insulation, you can do it for free.

10 ideas for soundproofing a room at a low cost

Here are 10 ideas for soundproofing rooms at a low cost (which includes answers to a few frequently asked questions) that should be a spark for your creativity. These ideas range from free insulation to insulation that requires a reasonable investment.


1- Play with home decor

To silence outside noise and prevent noise from entering the room, you can simply move the appliances to provide insulation. A very useful way to ensure that sounds can not pass through the walls is to have a wardrobe and bookshelves. Lean on those walls. Aram Gostar Pars Company suggests that you focus on the walls that are common or facing the street.

Another thing you can do to add mass to the walls is to decorate them with canvases or curtains. The thicker the fabric, the more sound it can absorb. So if you have a rug that is more beautiful than that. If you walk on it, you can hang it on the wall.

In fact, now that we are talking about decor, it should be noted that soundproof wallpapers can also be a useful way to insulate. These wallpapers, unlike ordinary wallpapers, are made of thicker foam material. It seems to be a very good idea, especially for walls that have been exposed after moving cabinets and shelves.

Because softer, more velvety materials are better at absorbing sound, you may want to add a small dining area to the room. If large enough, you can place a small sofa or armchair. Both of these options can enhance a room’s acoustics.

2- Use home appliances to soundproof doors and windows

If you are wondering where to start your insulation project, the first answer is always to pay attention to the door and window. Especially doors are fraudulent in blocking sound. This is because most doors are not only hollow, but the gap between the door and the frame allows noise to enter easily.

A convenient but expensive solution is to get one in high quality and thick insulation. To achieve the same result using home appliances, you must first tactically place the furniture in front of the edges of the door.

Secondly, note that the bottom can make a lot of noise in the house. To prevent this, place a thick rug or carpet or similar cloth on the floor next to the door. This can fill the gap at the bottom of the door. .

Then, to insulate other surfaces, cover the door with thick layers of material, such as thick blankets, as much as possible.

Inexpensive sound insulation methods

3- Insulate your room with soundproof blankets for free

If you are thinking of soundproofing your room for free using what you have at home, a “blanket” is your answer. Although spreading blankets on walls and windows is not a nice solution, it is effective in all emergencies. Is.

For blankets to be effective in the noise block, they must be as thick and dense as possible. Many have reportedly succeeded with woolen blankets. Make sure the blanket covers the entire surface of the wall and preferably the window. You can add as many blankets as you like.

When working with blankets, you can:

  • Glue or clamp them to the wall.
  • Hang on the curtain rod in front of the door and window.
  • Throw on any hard surface or furniture pieces.

4- Hang soundproof curtains

Just like blankets, curtains can be used to reduce or absorb noise before hitting hard surfaces such as drywall, wooden furniture or window glass. You can install the curtain rod wherever you want, along the wall or above the doors and windows, and hang the curtain on it. Of course, thick soundproof curtains are less effective than soundproof blankets.

But it is still better to use curtains because they are much more attractive than blankets. In general, soundproof blankets are designed for musicians because it turns out that the appearance of the blankets was not as important to the designer or the customer. When we talk about places like the bedroom, we expect to see something more comfortable and dignified.

Soundproof curtains

That’s why soundproof curtains are more efficient. If you do not want to spend money on soundproof curtains, it is enough to use thicker curtains. You can even hang several curtains on top of each other. Our suggestion is to put thinner curtains facing the window or wall, and thicker ones.

Keep in mind that not all curtains are equally soundproof. You need to make sure you choose the right material among the various items that will saturate the market. Also, be sure to cover the window sills with a few inches so that there is no leakage.

5- Sealing and closing the pores

In addition to covering doors and windows with blankets or soundproof curtains, there are a few easier solutions:

Use sealing strips or rubber washers between the door / window and the frame. They cause the door and window to close completely and no air or sound can pass through.
Use a long, thick cloth sealant under the door.

Sealant under the door soundproof

Use the ramps available under the door.

Sealant under the door


6. Does cheap egg comb insulation really absorb sound?

When it comes to cheap sound insulation, the egg comb is one of the most popular solutions. You might think that because the egg comb is light, porous and has a small physical volume, it can not block the passage of sound.

But fortunately you can use egg comb to reduce the echo. And the reason is hidden in the structure of the egg comb. For example, when sound waves hit smooth surfaces such as walls and windows, they return to where they came from. This continuous process leads to echo inside the room.

However, if you place the eggshells in sensitive places, their structure retains these sound waves and converts them into heat. This can help a little to eliminate the echo. The empty spaces inside the egg’s shoulder also act as insulation.

The egg comb is a long way from a good sound insulation system such as the egg comb foam, but its availability makes it worth a try.

7- Is it possible to use cheap insulation foam?

If you search the internet for soundproof foam, you may come to the conclusion that it can not block sound at all. But does that mean they are useless? Can it really be used as insulation? Yes of course!

In acoustics, there is a difference between sound blocks, sound insulation and sound absorption. Sound insulation foam does not block the passage of sound waves, but like other similar soft materials, traps sound waves in its fibers. This converts the energy of sound waves into heat. And leads to a decrease in echo.


Inexpensive soundproofing foam may not completely eliminate noise in your room, but it can make a significant difference in reducing echo. Most importantly, the products are cheap and easy to find.

Note that on the one hand, foam tiles can create a beautiful texture for the walls. But on the other hand, installing professional sound insulation tools on the walls of rooms such as bedrooms or living rooms can be a little too much and disproportionate. It may be better to choose more subtle ways of sound insulation.

8- Cheap handmade insulation panels

Would you like to know how to insulate a room with low cost and effective sound? So be prepared to build your own soundproof panels with a little more effort and save money.

First you need sound insulation material to put inside the panel. You can choose acoustic foam, mineral wool or anything else available. Most of these are cheap and available.
Then create a wooden frame that encloses your soundproofing material. The panel size should be the size of the surface size you want to cover. The best solution is to use wood glue and spray glue throughout your insulation environment.
Finally, when you put the soundproofing material inside the frame, put your whole structure inside the fabric. This fabric should be beautiful and attractive because it is the visible part of our work. In addition, make sure that the fabric or anything else you use is not soundproofing, as you want sound waves to reach the center of the panel.

Cheap handmade sound insulation panels

Cheap handmade insulation panels

9- Handmade window sound insulation plugs

Do not forget the windows! As mentioned in the previous section, most of the noise enters the room through them. If you are not in a position to buy soundproof windows, you can make a handmade window soundproofing plug.

These plugs also block light, so if you want to install them in the living room, it is better to make it removable.

Making window plugs is easy! All you need is a soundproofing mat, a thin wooden board and some glue. In addition to cheap sound insulation, window plugs are also thermal insulation in the cold seasons of the year.


10. Can carpets soundproof the floor?

In fact, carpets are not just for beauty or to soften the floor. Another important role they play is in reducing noise. Many people think that the harder and thicker the surface, the better it can block sound. In reality, wood and concrete floors make more noise. This is especially true of impact noise, such as footsteps or falling objects.

Carpets, due to their soft acoustic structure, can absorb these shocks and reduce the vibrations that are transmitted to the building. That’s why throwing carpets in the main room of the house is an easy way to block the sound of shocks from passing through the ceiling.

Carpets can absorb echoes by trapping sound waves in their fibers. The best solution is to lay the entire floor with the most appropriate thickness of the carpet. You can also put a mat under it to increase the effectiveness of your angel.

Is Cheap Soundproofing Really Possible?

Noise can ruin your day in countless ways. If you live in an apartment with a poor soundproofing system, you are probably doomed to live in noise. Listen. If you are unlucky, noisy neighbors can be just as bad. Or even worse, if they have small children, you have to share in their parents’ problems.

Do not try to make a lot of noise as a part of life. This type of pollution, like any other, is dangerous and can endanger your health over time by disrupting your sleep and raising your stress levels.