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How to Soundproof Windows: 8 Ways that Actually Work

how to soundproof your windows

Are you looking for ways to make your windows more quiet or soundproof your windows?

Whether you live in a bustling urban area, near a busy street, or just want to create a serene oasis inside your home, soundproofing your windows can significantly reduce unwanted noise and enhance your comfort.

Soundproofing is the process of minimizing or blocking sound waves from entering or exiting a space, and it has numerous benefits, including better sleep, improved focus, and enhanced overall well-being.

This article dives deeper into eight effective ways to soundproof your windows as well as valuable tips to achieve the best results.

If you are looking for guidance on how to soundproof your entire home, we’ve put together a comprehensive guide to soundproof your home.

Soundproofing Windows: Who Needs It?

Not everyone has to soundproof their windows. If you’re someone who lives in a relatively quiet area or doesn’t mind the occasional noise from entering your home, then this process may seem unnecessary.

However, there are people that need to block sound and experience a quiet environment.

Urban Dwellers

If you live in a densely populated urban area, you’re likely exposed to a constant barrage of street noise, traffic, and other urban sounds. Soundproofing your windows can offer you a peaceful sanctuary within the hustle and bustle of the city.

Light Sleepers

For individuals who are sensitive to noise and easily disturbed during sleep, soundproofing windows can be a game-changer. By reducing external noise, you can enjoy deeper, more restful sleep and wake up feeling refreshed.

Home Office Workers

With the rise of remote work, many people now have home offices. Noise reduction is essential for creating a productive work environment that is free from distractions, allowing you to focus on your tasks without being interrupted by external noises.

Musicians and Artists

Musicians, artists, and creatives who require a quiet and controlled environment to practice or work can benefit greatly from soundproofing. It prevents outside noise from interfering with their work and keeps their creations from disturbing neighbors.

Parents and Families

Families with young children or infants often need a serene home environment. Soundproofing existing windows can help keep the noise inside your home from disturbing neighbors and vice versa.


Even if you’re renting your home, you can still benefit from soundproofing solutions that are temporary and easily removable. Many of the techniques we’re going to explore can be implemented without causing any damage to the property.

8 Solutions To Soundproof Windows

From installing window inserts to applying acoustic caulk, there are many ways you can soundproof a window. Here are some of the tried-and-tested techniques for window soundproofing to try.

Acoustic Caulk

The cheapest way to soundproof your windows is to buy acoustic caulk at your local hardware store or on a site like Amazon.

Acoustic caulk is a specialized sealant that can be applied around the edges of your existing window frame to close gaps and create an airtight barrier.

This helps prevent sound waves from seeping through tiny openings and enhances the overall soundproofing effectiveness.

  • Precision Seal: Acoustic caulk provides a precise and controlled method of sealing gaps and cracks. This makes it an excellent choice for targeting specific areas where sound leakage is a concern.
  • Airtight Seal: The caulk dries to create an airtight and watertight seal. This not only prevents noise from entering your home but also helps improve energy efficiency by reducing drafts and heat loss.
  • Easy Application: Applying acoustic caulk is a straightforward process that typically requires a caulk gun and a steady hand. It can be a DIY project for homeowners who are comfortable with basic home improvement tasks.

How To Use Acoustic Caulk

For application, remove the section of window molding that leaks sound. See if there are gaps where sound can pass and choose that area.

Once you’ve cleaned the selected section, apply some sealant around the edges of your seam to seal it, using acoustic caulking like green glue to boost the STC score in your windows.

Follow the manufacturer’s instructions for drying time. Keep in mind that the caulk may take some time to fully cure and reach its maximum soundproofing effectiveness.


Weatherstripping is an economical and efficient method to seal gaps and cracks around windows. By eliminating drafts and reducing air leakage, it prevents energy loss and acts as a barrier against outside noise.

However, it may not be as effective at blocking louder types of noises, so this solution may not be applicable to those that need extremely soundproofed windows.

  • Noise Reduction: Weatherstripping helps create an airtight seal, which minimizes the gaps that allow noise to enter your home. By sealing off these openings, you can significantly reduce the amount of external noise that infiltrates your living space.
  • Energy Efficiency: In addition to soundproofing benefits, weatherstripping also enhances energy efficiency by preventing drafts and air leakage. This can lead to cost savings on heating and cooling bills.
  • Easy Installation: Weatherstripping is relatively easy to install, making it a suitable option for DIY enthusiasts. Many weatherstripping products come with adhesive backing, simplifying the application process.

How To Use Weatherstripping

The first thing to consider when installing weatherstripping is using the right material, as some are designed for specific types of windows.

Before applying the material, make sure that the surface is clean and that your measurements are accurate.

Over time, weatherstripping may wear out or become less effective.

Periodically inspect and replace your weatherstripping as needed to maintain its soundproofing and energy-saving benefits.

Noise Blocking Curtains

Heavy, dense curtains designed with noise-reducing materials can significantly dampen sound and improve your window’s soundproofing capabilities.

These curtains absorb and block sound waves, making them a popular choice for sound-conscious homeowners.

  • Effective Noise Reduction: Noise-blocking curtains are specifically designed to absorb and dampen sound waves, making them highly effective at reducing unwanted noise from outside sources.
  • Improved Privacy: In addition to noise reduction, noise-blocking curtains provide an extra layer of privacy by limiting visibility from the outside. This can be especially beneficial for urban dwellers or those living in close proximity to neighbors.
  • Aesthetic Appeal: These curtains come in a variety of colors, patterns, and styles, allowing you to choose options that complement your interior decor while enhancing the overall ambiance of your space.

How To Install Sound Dampening Curtains

First, choose curtains specifically designed for noise reduction. Look for curtains that are made with multiple layers of dense materials and have been tested for their soundproofing capabilities.

Then, use them as you would with regular curtains.

When you hang sound-dampening curtains, there will still be some noise entering your home. Complement this method with others, such as acoustic caulking and weatherstripping.

You can also experiment by layering noise-blocking curtains with other soundproofing materials, such as blinds or window plugs, for enhanced results.


Blinds are one of the more popular and versatile window treatments, offering more than just light control and privacy.

When they’re strategically chosen and properly installed, blinds can play a significant role in soundproofing your windows, making your living space quieter and more comfortable. Blinds are constructed from various materials, including wood, aluminum, vinyl, and fabric.

When closed, blinds create a barrier that helps reduce the transmission of sound waves entering or exiting your space.

  • Sound Reflection and Absorption: Dense and heavy blinds can reflect and absorb sound waves, reducing their penetration into your living space. This is particularly effective when blinds are layered with other soundproofing materials.
  • Versatility: Blinds come in a wide range of styles, colors, and materials, allowing you to choose options that match your interior design while enhancing your soundproofing efforts.
  • Temperature Regulation: Depending on the material, blinds can also contribute to temperature regulation by blocking heat from entering during warm months and retaining warmth during colder months.

How To Install Blinds

Make sure to find blinds that fit your design preferences and budget. In addition, getting ones that cover your window frame from end to end is important. Installing them is relatively manageable on your own, but blinds with motors and other complicated systems may be better left to experts.

Depending on the level of noise you’re trying to block, experiment with different materials to find the blinds that offer the best soundproofing results for your specific needs.

Dust and debris can accumulate on the slats and affect their soundproofing capabilities, so keep your blinds clean and well-maintained to ensure longevity.

Window Plugs

Window plugs provide a barrier against noise infiltration and are particularly useful for those who want to retain their current window treatments or are looking for a reversible soundproofing method.

Window plugs are custom-made inserts that fit snugly into your window frame, effectively sealing off the window opening.

They are typically constructed from dense materials such as foam, fiberglass, or acoustic panels.

When installed, window plugs create an airtight barrier that significantly reduces the transmission of sound waves.

  • Customizable Fit: Window plugs are tailored to the specific dimensions of your window frame, ensuring a precise and effective fit that minimizes gaps and maximizes soundproofing.
  • Temporary Solution: Window plugs are removable and temporary, making them an ideal soundproof window choice for renters or those who do not want to permanently alter their windows.
  • Easy Installation: Installing window plugs is straightforward and typically does not require professional assistance. They can be easily inserted and removed as needed.

How To Install Window Plugs

Perhaps the most important consideration with a window plug is the measurement.

This method is designed to seal window gaps thoroughly, so you or your contractor need to make sure that the panel fits snuggly.

Once you have the panels, insert the window plugs firmly into the window frame, ensuring they create an airtight seal.

You can also use weatherstripping or adhesive tape around the edges to further enhance the seal.

Double-Pane Windows

If your house has single-pane windows, it might be time to upgrade to a double-pane window system. Installing double-pane or double-glazed windows involves adding a second layer of glass, which creates an air gap that acts as a buffer against sound waves.

This construction enhances insulation and reduces noise infiltration. In addition to keeping out noise, double-pane windows offer significant improvements to insulation.

  • Effective Noise Reduction: Double-pane windows provide a substantial reduction in noise infiltration, making them an excellent choice for homeowners living in noisy environments.
  • Energy Efficiency: In addition to soundproofing, double-pane windows enhance energy efficiency by reducing heat transfer between the interior and exterior of your home. This can lead to lower heating and cooling costs.
  • Improved Property Value: Upgrading to double-pane windows can increase the overall value of your property due to their soundproofing and energy-saving benefits.

How To Install Double-Pane Windows

In general, this method of window soundproofing is better left to the professionals. Installing laminated glass windows requires expertise and specialized tools.

Consult with a professional window installer to ensure proper installation and optimal soundproofing results.

The role you’re going to play is maintenance and care. These windows require regular maintenance to preserve their effectiveness.

Clean the glass and seals periodically and address any issues promptly to ensure continued soundproofing performance.

Storm Windows

Storm windows create an air pocket between the primary window and the storm window, which acts as a buffer against sound waves.

This air space — combined with the thickness and density of the storm window materials — helps absorb and dampen incoming noise, making your indoor environment quieter and more peaceful.

  • Enhanced Soundproofing: Storm windows significantly reduce noise infiltration, making them an excellent choice for homes located in noisy areas or near busy streets.
  • Energy Efficiency: In addition to soundproofing, storm windows improve energy efficiency by creating an extra layer of insulation, which reduces heat transfer and can lead to lower heating and cooling costs.
  • Protection: As their name implies, storm windows are primarily made to protect against harsh weather conditions, UV radiation, and potential damage to your primary windows. This makes them extra useful in places that experience severe weather.

How To Install Storm Windows

Much like window plugs and laminated glass windows, storm window installation should be done by a professional.

They can make the right measurements and ensure proper fittings for sturdy external storm windows.

On your end, maintain your storm windows by cleaning the glass and frames regularly and addressing any issues promptly to ensure their continued soundproofing effectiveness.

Window Inserts

Window inserts — also known as interior window panels — are a versatile and efficient method of soundproofing that offers a range of benefits.

These custom-made panels fit inside your existing window frame and provide an additional layer of insulation and noise reduction, making them an effective solution for creating a quieter and more comfortable living environment.

  • Dedicated for Noise Reduction: Window inserts are highly effective at reducing noise infiltration, making them an ideal choice for homeowners living in noisy environments or near sources of loud sounds.
  • Customizable Design: Window inserts can be customized to fit the size and shape of your windows, allowing for a seamless integration that complements your home’s aesthetics.
  • Easy Installation: Installing window inserts is typically straightforward and does not require major alterations to your existing windows. They can be easily inserted and removed as needed.

How To Install Window Inserts

Measure your window frames accurately to ensure the window inserts fit snugly and provide an effective barrier against noise.

You can also incorporate weatherstripping or adhesive tape around the edges to enhance the seal.

Of course, you’re welcome to work with a handyman or window contractor to make things easier.

Keep the window inserts clean and well-maintained to preserve their soundproofing effectiveness over time.

Final Thoughts on Soundproofing a Window

Soundproofing your windows is a practical way to create a quieter and more peaceful living environment.

By utilizing the solutions outlined above, you can significantly reduce unwanted noise infiltration.

Remember to plan carefully, consider professional assistance when necessary, keep your budget in mind, and tailor your approach based on the specific sources of noise.

With the right strategies in place, you’ll be well on your way to enjoying a more serene and tranquil home. 

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