How to Decide if Soundproof Curtains Are the Best Product for You

Installing soundproofing materials can be a disruptive process, requiring changes to the walls, windows, or ceiling. Soundproofing curtains are becoming an increasingly popular alternative, but are they the best choice for you?

If you haven’t considered soundproofing curtains before, there are a few things you should know before purchasing. We’re going to break down how they work, their advantages and disadvantages, and an alternative solution, so you can make the best choice for your home.

bedroom with window curtains and indow inserts installed for soundproofing in san francisco

What Are Soundproof Curtains?

Soundproof curtains can also be known as sound-absorbing curtains, sound deadening curtains, acoustic curtains, and sound dampening curtains depending on the manufacturer you purchase from and the type of soundproofing you are trying to accomplish.

Regardless of the name, these curtains are made of heavy, thick materials like polyester, velvet, or suede that you hang above your window frame. They usually have a porous surface that allows them to absorb sound waves in order to make a room quieter.

A truly effective and high-quality soundproof curtain will be heavy, tightly woven, and run from ceiling to floor with several inches of fabric going past each side of the window. It’s essential they cover as much area around the window as possible so that the folds of the curtains can create a seal around the sides.

However, though many manufacturers market curtains as soundproof, they are usually ineffective.

woman and child in home with window with curtains and indow inserts for street noise reduction

Do Soundproof Curtains Work?

To answer this question, you need to know about the types of soundproofing.

There are two main types of soundproofing: sound reduction and sound absorption. Sound reduction stops or blocks sound from entering a space; using sound reduction will help keep your space free from outside noises such as weather, outdoor conversations, and traffic. Sound absorption, also called sound deadening, stops sound already inside a space from echoing and reverberating.

According to a wide array of reviews, soundproof curtains are incredibly effective for sound deadening applications, but they are not useful as sound reduction. What does that mean? Sound deadening materials work by reducing vibrations to reduce echoes in a room, but they will not reduce the decibel level of sounds entering the room.

Soundproof curtains are a simple additive to lessen the problem of overwhelming sounds, but they are not perfect problem solvers.

The Advantages of Soundproof Curtains

Soundproof curtains do contribute to noise reduction, keep a room from echoing, and provide a small amount of thermal insulation. While soundproof curtains should not be used to completely replace standard insulation in your walls and windows, they do contribute to added insulation for a warmer room in the winter and a cooler room in the summer.

Because these types of curtains are made from heavy material, they are often thick and opaque, so if you are looking for increased privacy, they can be a decent solution. They are also fairly inexpensive, running around $50-100 per window for good quality curtains.

The Disadvantages of Soundproof Curtains

Soundproof curtains have several disadvantages as well.

They are not as effective as other noise reduction solutions, such as soundproof windows or noise reduction window inserts. Their thick, heavy nature makes them difficult to transport, hard to install, and challenging to wash and maintain.

They can also make main living spaces too dark for comfort, limiting the number of rooms where they can be installed unless you are willing to pay increased electric bills and have a reduction in the amount of natural light.

This is especially disadvantageous for people trying to soundproof during the day. If you need quiet in your office but want all of the benefits of natural light (such as increased productivity, better moods, etc.), a soundproof curtain won’t be able to work as effectively unless it’s completely closed, blocking out all of the light.

man installing window insert to block noise without blocking natural light

An Alternative: Indow Solutions That Can Help

Indow offers window insert solutions that are a perfect alternative to soundproof curtains, with a lower price point, easier installation, and an overall more comfortable experience.

Just press custom-made Indow inserts into your window frames — with no mounting hardware or permanent damage — and enjoy your increased quiet. You’ll sleep better, feel better, and enjoy your space more. Noise-reducing windows have never been so easy to obtain.

Our acrylic glazing edged in our patented silicone compression tubing creates a tight seal and dead air space between the insert and your window. This dead air is essential to noise reduction because anywhere air gets in, noise can too. To keep the noise outside, we ensure a precise, snug fit by custom making each acoustic window insert using our laser measuring system.

Every grade of Indow window inserts reduces outside noise by 50% for single-pane windows and our Acoustic Grade does an even better job, reducing noise by 70%*. Indow inserts are very easy to install and remove, with no damage to your window frames. They not only block outside noise but also prevent inside noise from bothering your neighbors.

And you don’t have to sacrifice natural light to get the sound reduction you want. However, if you want both sound reduction AND reduced light (say you get chronic migraines or you want better sleep quality), you can choose Indow Sleep Panels instead, which block 100% of light and offer superior soundproofing. The best part? You can choose which windows you want light-blocking panels and which you want just noise blocking for a truly custom experience.

While soundproof curtains may be less expensive and easy, they provide minimal performance and cut out all natural light while soundproofing is occurring. If you want high-quality soundproofing without sacrificing natural light, you want Indow inserts.

Interested in learning more about Indow window inserts? Check out all the insert collections offered by Indow as a great soundproof curtain alternative, and then get a free estimate using our instant price calculator.

*We want to ensure our inserts help solve your noise problem. Overall noise reduction depends on the amount of noise coming through your walls, ceilings, floors, doors, and existing windows. Noise reduction will be less when placed over double-pane windows. Read our full Noise Reduction Sheet to learn more.

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Customer Reviews


4.49 Average 1423 Reviews logo

Charles T

Working with Indow has been a great experience from start to finish. They answered all our questions & guided us through the whole process. We ordered 15 inserts & they have reduced the Highway noise that we were experiencing after buying our house. A great product & innovative company.

Posted 1 day ago

Sue W

I live 20 feet from a busy road with lots of trucks. We almost didn't buy the house because of the noise. my house is the perfect candidate for indows. After installing them (myself. .. directions were so easy) we can barely hear any trucks noise at all. Indies live up to their claim and has made a huge difference.

Posted 2 days ago

Richard H

I am very pleased with the noise reduction and heat-trapping effects of my Indow inserts. I bought three small inserts as an experiment for the noisiest part of the house all year round, and where it's cold in winter. They have done beautifully well in sealing out both noise and heat. My only issue has been to get one of them installed perfectly straightly on one side, but it was done in a difficult location and isn't that important. They are also quiet expensive, but I may get a federal tax rebate on them.

Posted 6 days ago

Hee D

It could have been better if the pallet was collected after the delivery. Also the inserts are more beneficial for picture/fixed windows rather than open windows. The price of insert are expensive.

Posted 1 week ago

Larry S

I was pleasantly surprised how well the appearance after installation, perfectly clear, plus reduce the noise from the outside more than I expected. I would definitely recommend anyone looking for noise reduction to consider these. I will be purchasing more as time goes on, thank you Indow

Posted 1 week ago


Called about price $1000.00 For 2 small windows asked about energy savings? They said no guarantees depending on location and almost other factors, why would I spend that money w no guarantees

Posted 1 week ago

Christie R

It has cut down noise tremendously and is definitely more efficient with keeping our cooling in and heat out this summer.

Posted 1 week ago

William U

Indow is a trendsetter in eCommerce. They make the entire process of ordering, purchasing, and installing their product very easy for any walk of life; and, their communication processes are excellent. The inserts I purchased and installed were just as described. They are effectively blocking soundwaves, but not vibration, which was discussed during my initial call with an Indow Representative. I would recommend Indow window inserts to a friend.

Posted 1 week ago


Our window inserts have decreased road noise in our bedroom by 75 percent which we are very pleased with. The whole process was extremely simple and organized. Everyone we dealt with was professional and helpful. The inserts were simple to install and I would recommend to others.

Posted 2 weeks ago

Jeanne S

They make it easy to measure and install and it does reduce the noise as I live next to a busy highway. I am happy with the purchase.

Posted 3 weeks ago

Ivan L

We have a multi-story building construction next block that starts at 7 a.m. daily and a busy street a few blocks away. Before the insert was in place in our bedroom, we heard every piece of construction equipment there, including the obnoxious beeps from vehicles backing down in the lot, and all of the emergency vehicles passing by on the avenue. Now, this sounds like something happening twenty blocks away, barely noticeable. This is a huge quality-of-life improvement from day one of the insert installation.

Posted 3 weeks ago

Stan B

All fit as planned and are good

Posted 3 weeks ago

Cassie M

Overall very easy process from ordering to install. Was just hoping that the sound dampening would have been a little better.

Posted 3 weeks ago

Dan C

Effective and frequent communication from Indo Window starting with the order process, through production and post-delivery. The insert fit was excellent, fitting snuggly. The panel is quite effective in reducing noise. My wife was sleeping in the basement due to traffic noise. She is able to sleep in her bedroom again. Overall an excellent experience!

Posted 1 month ago

Lynett P

Great product. Arrived a bit dirty.

Posted 1 month ago