Soundproof Glass for Home or Office Windows: What Really Works

Soundproof Glass for Home or Office Windows

If you have ever thought about soundproofing your windows but thought it was too expensive or too much work, don’t go anywhere. I’m going to tell you what works, what to expect, and how much money it will really cost you.

There are a couple of different methods you can follow. You can either soundproof your current windows or purchase soundproof windows to replace your current ones.

How to Soundproof Your Current Windows

In this section, I’ll describe how to soundproof your current windows.

This method is recommended if you have a specific room in your home that is subjected to frequent noise, or if you need to soundproof the windows of your office. It doesn’t require a lot of materials or work, and the outside noise should be noticeably reduced.

What You Need

You will need to purchase a soundproof tape or foam to seal the window. I have listed three below for you to take a look at.

Adhesive Insulation Soundproofing Foam Tape

You can purchase this adhesive soundproofing foam tape in three different lengths and thicknesses. The thickness will be the most important feature you will want to pay attention to when you purchase this tape. I have linked the ½-inch thickness tape to this article and selected the 13-foot length.

To apply this soundproofing foam tape, you will need a pair of scissors or cutting blade to cut the foam to the length you need, and that’s it! You will simply place the foam tape where you want to apply it, remove the adhesive backing to expose the glue strip, and press firmly onto the seal of your windows. The foam is easily bendable for you to fit most any window shape.

3M Silicone Soundproofing Sealing Tape

This 16-foot-long sealing tape by 3M comes in two different widths to choose from. I have linked the 25mm width, but it also comes in 45MM width. With 16 total feet in length, you can easily cut the tape where you need it to fit any size window you have.

Simply peel off the adhesive backing strip and apply to the window, firmly pressing the tape to the window as you apply. This soundproof sealing tape doubles as a weather sealant, keeping insects and cold or warm air from entering your home or office!

Green Glue Noise Proofing Sealant

Another method of soundproofing glass for your home or office windows is to seal any cracks that are visible in the window pane. Even the smallest crack can let in a large amount of sound; larger than you may realize.

By sealing any cracks in the window panes of your home or office with noise proofing sealant will keep outside noises from entering and keep your indoor space quiet.

Adding Other Soundproofing Products to your Current Windows

You may need to increase the soundproofing effectiveness of your current windows, and sealing foam or tape may not do the trick. You may need to up the ante by adding additional soundproofing products or elements to your windows.

I have included two additional soundproofing products for you to consider adding to your windows to help soundproof them.

NICETOWN Thermal Insulated Blackout Curtains


Another option for soundproofing your home or office windows is not related to the glass, but what you can put over the glass. Blackout curtains are an efficient and productive method for soundproofing home or office windows.

Audimute Sound Absorption Dampening Blanket

The last option to consider for soundproofing the glass of your home or office windows is by adding a sound absorbing blanket to cover the window.

This sound absorbing blanket has a noise reduction coefficient of 0.85, meaning that 85% of the outside sounds and noises are absorbed in this sound absorbing blanket.

You can place this blanket over windows or doors with windows that allow sounds to enter the home or office. This blanket will significantly reduce sounds and noises from entering your home or office.

Note: you will need a one-quart caulk gun to apply the sealant.

The Bottom Line: Cost, Time, and Labor

Soundproofing the glass of your home or office windows can be a simple process, depending on the amount of noise you need to reduce.

If reducing a small amount of noise is the goal, you can simply seal the cracks in the window with noise proofing sealant to keep outside noises outside.

Once you have sealed any and all cracks, you will want to add foam or tape to the frame of the window. This will step the soundproofing up a notch to keep outside noises from entering your home or office.

Photo by bruce mars from Pexels

The last element you can add to soundproofing glass for home or office windows is by adding additional soundproofing products to the windows. These products may either be soundproof curtains, a soundproof blanket, or other soundproofing panels for sound absorption and reflection.

The most simple and most affordable method for soundproofing glass for your home or office windows is by sealing the cracks in the window panes. This is an inexpensive and quick process that renders effective soundproofing results.

If you need to step it up a notch, you will want to seal the cracks and then add soundproofing tape or foam. This will cost a little extra and take a little more time, but the soundproofing results will be more effective.

The last option is the most expensive and labor-intensive because you will want to seal the cracks, add the tape or foam, and then finalize the project with soundproofing products like soundproofing curtains or a sound dampening blanket. While this is the most expensive and laboring option, it is also the most productive in soundproofing glass for home or office windows. The good news is that if your home or office windows require a little sealing to produce a lot of soundproofing, you can easily soundproof your home or office windows for cheap and easy!

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