Soundproof Windows Cost: Buying New Vs Soundproof Old One

One of the first upgrades people consider when looking to improve the soundproofing in their homes is to install new windows. Soundproof windows are a great way to reduce outside noise. But how much do soundproof windows cost? And what factors should you consider when working out the price?

The cost of soundproof windows depends on the size of the window and the kind of glass you want. Complete window replacements start at about $300 each, but if you just want to replace the glass in an existing window, that’ll cost between $50 and $200 per pane.

It depends on a lot of factors, including your budget and how much you want to spend. In this article, We’ll look at both the cost of soundproofing your existing windows and the cost of new windows with better soundproofing features.

How much do Soundproof Windows Cost (Buying New)

How much do Soundproof Windows Cost

There are many different types of soundproof windows available, but they can generally be categorized into three types: double pane, triple pane, and laminated windows. 

Each type has its own pros and cons that you should consider before making a final decision about which type works best for your home’s needs.

If you are looking for the costs of soundproofing existing windows (DIY) then skip to this section of the post.

Type of Window CostNoise reduction (%)
Double Pane Window$100 – $900Up to 45%
Triple Pane Windows$300 – $1100Up to 65%
Laminated Glass Windows$400 – $1,500Up to 70%

Double Pane Windows

Double Pane Windows

Double paned windows are made of two sheets of glass, separated by a thin layer of air. This air is what prevents sound from traveling through the window. The space between the two sheets of glass is called an “air cavity,” and it’s filled with argon, krypton or nitrogen gas.

Double-paned windows start at around $100 and can cost as much as $900 per window, depending on factors like size, quality and type.


  • They’re energy efficient. Double-pane windows can block up to 75% of heat transfer through them, which helps keep your house warm in the winter and cool in the summer.
  • They reduce noise pollution from outside sources such as construction projects or nearby traffic. Double-paned windows may reduce noise by as much as 45%, compared to single-pane windows.
  • They help regulate humidity levels inside your home so that it doesn’t get too humid or too dry year round.


  • They can be expensive. Double pane windows aren’t cheap, but they’re worth it if you want your home to be energy-efficient and noise free.
  • In order to get the most out of soundproofing windows, you should use double paned windows on all the windows in a room. Replacing only one or two windows may not be effective.

Triple Pane Windows

Triple Pane Windows

Similar to double pane windows, triple pane windows are made with three panes of glass, each separated by a layer of gas or vacuum. The gas is typically argon, and the vacuum is usually nitrogen. This helps to minimize thermal expansion between the panes and improve energy efficiency, as well as reduce sound transmission.

  1. The first pane is the outermost layer and it is made from a thin, low-emissivity (low-E) film that helps insulate the window and reduce heat transfer. 
  2. Next is a gas filled space between two sheets of glass. This space acts as an insulator and helps reduce noise. 
  3. Finally, there is a second thin sheet of low-E film that completes the triple pane construction.

Triple-pane windows typically cost between $300 and $1,100 for each window.


  • Triple Pane Windows are more soundproof than double pane windows because they have three panes of glass. They are likely to reduce noise 20% more than double pane windows.
  • Triple-pane windows are made up of three panes of glass, which means they insulate your home better than single-pane windows, keeping the temperature inside more consistent.
  • These windows prevent heat from escaping during the winter, and keep cool air in during the summer. By keeping your home at an optimal temperature, you can save on heating bills and air conditioning costs.
  • Triple pane windows are made of three panes of glass, and each pane has two layers of glass. This means that the window is better able to withstand pressure and will last longer than a single or double pane window.


  • Triple pane windows are the most expensive option, which may be a factor in deciding whether or not to invest in them. However, many people find that their energy bills drop noticeably after installing triple pane windows because of the increased insulation.
  • They’re a bit more difficult to install than double pane windows. This is because triple pane windows have to be installed in such a way that they don’t block any light or air flow coming through the window.
  • Triple pane windows are typically heavier than other types of windows. This can make them more difficult to install, and it may be more expensive if you have to have them installed professionally.
  • Triple pane windows reduce the amount of light that you get. If you want a more natural light in your home, this may not be the right option for you.

Laminated Glass Windows

Laminated Glass Windows

Laminated windows are made by combining two or more sheets of glass with an interlayer. This interlayer can be made of various materials, including polyvinyl butyral (PVB), urethane, ethylene tetrafluoroethylene (ETFE), or polyvinyl fluoride (PVF). The type of interlayer used depends on the desired result.

A PVB interlayer will provide better acoustic insulation than a Urethane one. Laminated windows may cost anywhere between $400 – $1,500 or more per window. However, these windows reduce the noise by 70%.

Laminated windows provide some of the same benefits as double or triple pane windows, such as blocking out noise and keeping the temperature balanced in both summer and winter. However, laminated windows tend to be more expensive than their double- or triple-paned counterparts.

Cost for Soundproofing Existing Windows (DIY Methods)

You can soundproof your home by installing weather-stripping or a layer of foam on the windows, or curtains made from sound-absorbing material. If you are looking for something simpler, there are window inserts that attach directly to the glass and block out noise.

Following are some of the most cost-effective methods to soundproof windows:

MethodCostNoise Reduction (%)
Seal the Gaps$10 – $50Up to 20%
Hang Soundproofing Curtains$20 – $200Up to 10%
Use Window Inserts$100 – $800Up to 80%

Seal the Gaps

Seal the Gaps

If you’re looking to soundproof your window, the first step is getting rid of any gaps between the window and its frame. You can use caulking or foam to fill in these gaps, which will prevent noise from getting out. 

If you want to get a more permanent solution, you can install weather stripping around the edges of the window. This will provide a tighter seal and make it easier for you to keep noise in or out.

  • Acoustic caulk costs about $10 to $25 a tube.
  • The cost of weatherstripping for windows is around $5 to $20 per roll.

Sealing the gaps of your windows is an inexpensive way to reduce noise. Using this simple technique, you can reduce outdoor noise by up to 20%.

Hang Soundproofing Curtains

Hang Soundproofing Curtains

Soundproofing curtains are an easy and effective way to keep sounds in and out of your home.

All you need to do is find a length of fabric that fits your window, then hang it on the inside of the window frame. The fabric will absorb the noise of the room and reduce the echo. 

But soundproofing curtains aren’t good at blocking noise from the outdoors. To get the best results, combine this method with others. These curtains cost between $20 and $200 per window.

Use Window Inserts

Use Window Inserts

Window glass inserts are one of the best ways to reduce the amount of noise coming through your windows. By adding these inserts in front of your window, you will be able to block out unwanted noise from outside and make your space feel more peaceful and quiet.

They can be expensive, with the cost ranging from $100 to $800 for a glass insert. But they can reduce noise by as much as 50% for single-pane windows and up to 80% if you have double or triple-pane windows.

Factors That Affect the Cost of Soundproofing Windows

Factors That Affect the Cost of Soundproofing Windows

The cost of soundproofing windows depends on several factors. Following are some of the main factors:

  • WIndow frame material: The material used to make the frame of your windows will affect how much soundproofing you need. This is because different materials have different impacts on sound waves, and the thickness of each material affects it as well.
  • Number of windows: If you need to soundproof a large number of windows in your house or office building, it will be more expensive than one or two windows.
  • Size of window: A big factor (discussed below in detail) that affects the cost of soundproofing windows is the size of the window. The larger the window, the more expensive it will be.
  • Number of panes: The number of panes in a window can affect the cost of soundproofing windows. A double-paned window is more expensive than a single-pane window.
  • Window Location: If the window is located high up on a wall or roof, it may be more difficult for installers to reach it safely and efficiently during installation. This can add time to their work, which increases their hourly rate and overall expense for you.
  • Labor Fee: This is the cost of labor for installing your soundproofing window. The labor fee can vary depending on the size of the window, whether it is custom-made and how difficult it is to install.

Impact of Window Size on Soundproofing Costs

Impact of Window Size on Soundproofing Costs

The size of your windows can have a significant impact on the cost of the project. Larger windows require more materials to effectively block noise, which can drive up the cost. 

Here we will discuss how window size impacts soundproofing costs and what you can do to minimize those costs while still achieving the level of soundproofing you need.

Larger Windows Require More Soundproofing Materials

The size of your windows can significantly impact the cost of soundproofing them. Generally speaking, larger windows require more materials to soundproof them effectively, which drives up the cost. 

This is because larger windows have a larger surface area that sound can pass through, which means more materials are needed to block the noise.

Custom Windows May Cost More to Soundproof

If your windows are an unusual size or shape, you may need to have custom soundproofing solutions installed. This can add to the cost of the project since custom solutions require more time and effort to design and install. 

However, it is important to note that custom soundproofing solutions can be more effective than standard solutions, so the added cost may be worth it if you are dealing with a particularly noisy environment.

Soundproofing Film Can Be a Cost-Effective Solution

If you are looking for a more affordable soundproofing solution, consider using a soundproofing film. This is a thin layer of material that can be applied directly to your existing windows. 

It works by absorbing sound waves, which helps to reduce the amount of noise that enters your home. Soundproofing film is generally less expensive than other soundproofing solutions, and it can be a good option if you are on a budget.

Quality of Soundproofing Materials Can Impact Cost

When it comes to soundproofing your windows, you get what you pay for. Higher-quality soundproofing materials generally cost more, but they are also more effective at blocking noise. Cheaper materials may be less effective, which means you may need to use more of them to achieve the same level of soundproofing. 

This can drive up the overall cost of the project, so it is important to invest in high-quality materials if you want to achieve the best results.

Do Soundproof Windows live up to the Hype?

Soundproof windows are one of the best ways to reduce noise in a room. Using additional window inserts with double-pane or triple-pane windows can reduce outdoor noise by up to 80%. They do this by absorbing sound waves and bouncing them back rather than allowing them to pass through.

It means that soundproof windows are definitely worth the hype. But you should know that there are some things you should be aware of before you make your purchase. 

Soundproof windows are not 100% effective. They will only block out about 50% to 60% (without window inserts) of the noise coming from outside, so if you’re looking for complete silence, soundproof windows may not be the best option for you.

How do Soundproof Windows Work?

Soundproof windows work by reducing the amount of sound that passes through them. These windows are made up of two or three glass panes separated by a layer of gas or vacuum. The gas or vacuum helps insulate the window from the outside, blocking out outdoor noise.

Double-pane and triple-pane windows are often referred to as Soundproof windows. Double-paned windows are usually made from two sheets of glass separated by an air gap. Triple-paned windows have an additional layer of glass between the two panes.

Absorption of sound waves

The first thing that happens when sound hits one of these windows is that some of the room noise gets absorbed into the glass. 

This happens because air is much less dense than solid materials like metal or wood (things like concrete or brick aren’t as good at absorbing sound). The second layer of glass helps trap this air and keep it from bouncing back into your room.

Reflection of sound waves

When sound waves hit the outside of a double-paned window, they bounce off and are reflected away from the house. In other words, they’re stopped from entering your room.


The cost of soundproof windows will vary depending on the type of windows you have, their size, complexity, the quality of materials used, and so on. A basic soundproofing window will cost anywhere between $300 and $500 per window, while more expensive options can cost up to $1000 per window.

Soundproof windows are an investment in your home. They can make a huge difference in the comfort, quiet, and privacy of your home. But they’re also an investment in your health keeping you safe from the constant noise pollution.

This guide contains all the information about the costs of soundproofing windows, from inexpensive diy options to more expensive professional solutions.

Frequently Asked Questions (Soundproof Windows Cost)

How much does it cost to install a soundproof window?

It depends on the window you choose and the labor fee. Installing a double-pane window will cost about $100 for labor and about $200 for materials. The exact numbers can vary depending on the location of your home and the specific windows you choose.

The labor fee also depends on the difficulty of installing your window. If you have a large window or one that is hard to reach, you may need additional help from someone who has experience installing windows properly. This can add an additional $50 to $100 to your labor cost.

Do soundproof windows increase home value?

Yes, Soundproof windows can increase your home’s value. Most buyers would rather live in a home with soundproof windows than one without. This is especially true if they have children or are light sleepers. Tenants looking for apartments or houses will often choose the one with soundproof rooms over others.

Can you soundproof an existing window?

Install double-pane windows with low-emissivity coatings on both panes. This will help cut down on noise from outside coming into your home. Add curtains or blinds to the window. This will also help reduce noise from outside coming in, and also help with light control when you need it.

You can also reduce sound by installing weatherstripping around the window and by adding silencers, which are basically soundproofing pads that you attach to the inside of your windows. 

Moreover, if you want to get really serious about soundproofing your home, you can add an extra layer of insulation between your walls and floors.

Is sound proof glass expensive?

Soundproof glass is great for those who want to shut out the outside world. It’s not the most expensive option on the market, but it does come with a higher price tag than regular windows. Soundproof glass will cost you about $10-$15 per square foot.

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Brendan Ratliff
Brendan Ratliff

As a soundproofing and acoustical professional, I have helped new homeowners, builders and remodelers with their projects. I also help contractors/designers learn how to properly install soundproofing in their clients homes.
I enjoy helping people understand the process of soundproofing and acoustical construction. is a one-stop solution for all of your soundproofing related questions.