
How to Soundproof a Window Cheap: 7 Budget-Friendly DIY Tips
If you're tired of noisy neighbors or the sounds of traffic interrupting your peace, you're not alone. Many people want to know how to soundproof a window cheap without breaking the bank. Luckily, there are several budget-friendly DIY methods that can help reduce noise coming through your windows. From simple sealants to creative uses of everyday items, you can create a quieter space without spending a fortune. Here are seven effective tips to get you started.
Key Takeaways
- Acoustic sealants are a great way to fill gaps and prevent noise leaks.
- Egg crate foam can be a cheap alternative for reducing echo in your space.
- DIY soundproof curtains can block out noise effectively without high costs.
- Mass-loaded vinyl is a heavy material that can significantly reduce sound transmission.
- Window plugs are a simple and effective way to block outside noise when needed.
1. Acoustic Sealants

Okay, so your windows are letting in more noise than you'd like? One of the first and easiest things you can try is using acoustic sealants. Think of it like patching up all those tiny holes and cracks that sound waves love to sneak through.
- First, you'll want to grab some acoustic caulk. Regular caulk will get hard and crack over time, but acoustic caulk stays flexible, which is what you want for soundproofing.
- Make sure to remove any old caulk with a putty knife before you start.
- Apply the acoustic caulk evenly at a 45-degree angle to fill in any gaps. Smooth it out with a butter knife or spoon, and let it dry for at least 48 hours.
Acoustic caulk is a cost-effective and durable solution. It's designed to reduce sound transmission by creating an airtight seal. This handy quick-fix is much more durable than ordinary caulk, and can easily last up to three-four years.
Another option is weather-stripping tape. It's usually made of foam, rubber, or silicone, and it's super easy to install. Just clean the window, cut the tape to the right length, and stick it along the edges. You can find weather-stripping tape for less than 10 bucks, and it can really help with soundproofing and insulation. If you have acoustic issues, this might be the solution.
2. Egg Crate Foam
Okay, so egg crate foam. You've probably seen it before – it's that bumpy stuff that looks like, well, egg crates. It's often used in packaging, but some people try using it for soundproofing. Let's be real, it's not the best option out there, but it's cheap and easy to get your hands on, so it's worth discussing.
While egg crate foam might not give you professional-grade soundproofing, it can offer a slight reduction in echo, especially in smaller rooms. Think of it as a starting point, not the final solution.
It's important to understand its limitations. Egg crate foam primarily absorbs mid to high-frequency sounds, meaning it's better at dealing with echoes and reverberations than blocking out low-frequency noises like traffic or bass. If you're dealing with loud outside noises, you'll likely need something more substantial. Also, keep in mind that covering your entire window with foam will block out all natural light. This might be okay for a temporary setup, like a home recording studio, but it's probably not ideal for everyday living.
Here's a quick rundown of what to expect:
- Cost: Very affordable, often the cheapest option.
- Effectiveness: Limited, best for reducing echo in small spaces.
- Installation: Easy, can be attached with adhesive or tape.
- Aesthetics: Not the most attractive, might not be suitable for all rooms.
If you're on a super tight budget and just need to dampen some echoes, egg crate foam might be worth a try. But if you're serious about soundproofing, consider combining it with other methods or investing in acoustic foam panels for better results.
3. DIY Soundproof Curtains
Okay, so maybe you don't want to spend a ton of money on fancy soundproofing materials. I get it! That's where DIY soundproof curtains come in. These are a surprisingly effective and relatively inexpensive way to block out some of that unwanted noise.
Think of it this way: regular curtains mostly just block light. Soundproof curtains are designed with much denser, heavier fabrics that can actually absorb sound waves. It's not going to be like a professional recording studio, but it can make a noticeable difference, especially if you combine it with other methods.
Here's the deal: you can buy ready-made soundproof curtains, but where's the fun (or the budget-friendliness) in that? Instead, let's talk about how to make your own. You can even use soundproof blankets for a cheap DIY option instead of professional paneling.
Here are a few things to consider when making your own:
- Fabric Choice: Go for heavy fabrics like velvet, denim, or even multiple layers of thick material. The denser, the better.
- Layering is Key: Don't just use one layer of fabric. Add a layer of something like mass-loaded vinyl (we'll talk about that later) or even a thick blanket between the outer fabric and the lining.
- Size Matters: Make sure your curtains are wider and longer than your window. You want them to extend beyond the window frame on all sides to really block the sound. Think about blackout curtains, which are also a good option for reducing noise and light since they help you get a good night’s sleep.
I tried this in my bedroom last year, and it made a surprising difference. I used some old heavy drapes I had lying around and added a layer of thick felt in between. It wasn't perfect, but it definitely cut down on the street noise. Plus, it made the room darker, which is always a bonus.
So, get creative! Look around your house for materials you can repurpose. Hit up a fabric store and see what's on sale. With a little effort, you can create some effective soundproof curtains without breaking the bank.
4. Mass-Loaded Vinyl
For windows you don't really care about seeing out of, or ones that are usually covered anyway, mass-loaded vinyl (MLV) can be a solid option. It's not the prettiest, but it gets the job done. Think of it as a heavy-duty soundproofing solution for those problem windows.
MLV is a dense, heavy material used in all sorts of soundproofing projects, from engine compartments to home studios. It's usually made from PVC and vinyl, which gives it that flexible feel, plus a heavy filler like barium sulfate. This stuff is designed to block sound vibrations rather than just airborne noise.
Think of it this way: if you put MLV on your ceiling, you're less likely to hear your upstairs neighbor doing jumping jacks. You can also hang it over windows like super-heavy curtains.
MLV isn't winning any beauty contests, but you can paint it to match your room. Or just hide it behind some nice, thick soundproof curtains. The point is to block the noise, and MLV does that well.
Here's a quick rundown:
- Effective for blocking impact noises.
- Can be painted to blend in.
- Easy to install (just hang it up!).
MLV film is effective because it minimizes vibrations on the glass panes of your windows, which in turn reduces noise. You also have a range of options for window film, as it works like a sticker, covering a window and reducing noise. Simply cut the vinyl film to fit the shape of your window and put it in place. Most vinyl or environmental PVC sheets adhere to surfaces using static cling, so it’s easy to stick on, remove, and reuse if necessary.
5. Self-Adhesive Foam Seal Strip

One of the simplest ways to tackle window soundproofing is by using self-adhesive foam seal strips. Think of it like this: your windows, no matter how well-fitted, probably have tiny gaps that act like little highways for sound. These strips are designed to block those routes.
These strips are super easy to apply and can make a noticeable difference, especially with high-frequency sounds.
Here's the lowdown:
- First, clean the window frame thoroughly. You want the adhesive to stick properly, so get rid of any dust or grime.
- Measure the length of the window edges you want to seal. Cut the foam strip to the right size.
- Peel off the backing and carefully apply the strip, pressing firmly to ensure a good seal. Pay special attention to corners.
I used these strips on my old apartment windows, and they helped cut down on street noise significantly. It wasn't perfect, but it was a cheap and easy improvement. Just be careful when removing them later, as they can sometimes pull off paint.
It's worth noting that while these strips are great for sealing gaps, they won't block low-frequency sounds like traffic rumble as effectively as mass loaded vinyl. But for a quick and affordable fix, they're a solid choice.
6. Thick Blinds
Okay, so maybe you're not ready to commit to full-on soundproof curtains. I get it. Sometimes, a simpler solution is all you need. That's where thick blinds come in. They're not going to block out all the noise, but they can definitely make a noticeable difference, especially with higher-frequency sounds. Plus, they're way easier to install than some of the other options.
Think of it this way: you're adding another layer of material between you and the outside world. The denser the material, the more sound it'll block. It's not rocket science, but it works. Here's the lowdown:
- Honeycomb blinds are your best bet. The design traps air, which acts as an insulator and sound barrier. I've heard they're surprisingly effective. You can install your blinds of choice for a versatile soundproofing treatment.
- Roman shades, while usually flat, can also help dampen sound if they're made of a dense fabric. Plus, they add a nice touch of color to the room.
- Layering is your friend. Combine blinds with DIY soundproof curtains for even better sound reduction. It's like a double whammy of noise control.
Just a heads up: if you're renting, you might want to check with your landlord before swapping out the existing blinds. Some leases have rules about that kind of thing.
And hey, even if they don't block out every single sound, thick blinds can still help create a more peaceful and relaxing environment. It's a small change that can make a big difference.
7. Window Plugs
Okay, so window plugs might sound a little weird, but hear me out. They're basically custom-fit inserts that you can pop into your window frame to block out sound. Think of them as temporary soundproofing that you can remove whenever you want. It's way less permanent than, say, replacing your entire window.
The cool thing about window plugs is that you can totally DIY them. It's not rocket science, and it can save you a bunch of money compared to buying some fancy soundproofing solution. Plus, you can customize them to fit your exact window size and needs.
Here's a basic idea of what you'll need:
- Fiberboard: This will be the main structure of your plug.
- Acoustic Foam: This is what's going to absorb the sound.
- Strong Adhesive: To stick everything together.
- Measuring Tape: Gotta get those dimensions right!
- Cupboard Handle: Makes it easier to insert and remove the plug.
Basically, you measure your window, cut the fiberboard to size, glue on the acoustic foam, and add a handle. Boom, you've got a DIY sound barrier. It's not the prettiest solution, but it can definitely make a difference, especially if you're dealing with noise from traffic or noisy neighbors. You can even cover the plug with fabric to make it look a little nicer. Just make sure the fabric doesn't interfere with the sound absorption.
Wrapping It Up
So there you have it! Soundproofing your windows on a budget doesn’t have to be a huge hassle. With a bit of creativity and some simple materials, you can cut down on that annoying noise from outside. Whether it’s sealing gaps, adding layers, or using heavy curtains, every little bit helps. Just remember, the key is to combine a few methods for the best results. Don’t be afraid to experiment and see what works for your space. Good luck, and enjoy your quieter home!
Frequently Asked Questions
What are acoustic sealants and how do they work?
Acoustic sealants are special types of caulk that help block sound from entering or leaving a room. They fill in gaps around windows and doors to stop noise leaks.
Can egg crate foam really help with soundproofing?
Yes! Egg crate foam is a cheap way to reduce echo and noise. While it’s not as effective as professional soundproofing materials, it can still help a little.
How do I make my own soundproof curtains?
To make DIY soundproof curtains, use thick fabrics like heavy blankets or quilts. Hang them over your windows to block outside noise.
What is mass-loaded vinyl and why is it useful?
Mass-loaded vinyl (MLV) is a heavy material that blocks sound. It can be used on walls, ceilings, or floors to reduce noise without taking up much space.
How can I use self-adhesive foam seal strips?
You can apply self-adhesive foam strips around the edges of your windows to seal gaps. This helps stop sound from leaking in.
What are window plugs and how do they work?
Window plugs are removable panels that fit snugly into your window frame. They block sound by adding an extra layer of material to your window.