How To Soundproof Against External Sounds
Does outside noise bother you? Do you want to know how to soundproof against external sounds to protect your peace?
The good news is you don’t have to live with constant traffic, neighbours, or street noise. With the right materials and techniques, you can significantly reduce external noise and create a calm, quiet space. Below, we’ll show you how noise enters your property and the best ways to stop it.
Why Outside Noise Gets In
Before you can stop external noise, it helps to understand how it travels. Outside sounds are what we call airborne noise — they move through the air and vibrate any surface they hit.
When sound waves strike your walls, windows, or ceilings, those surfaces vibrate and transmit sound into your space. That’s why traffic, music, or barking dogs can easily make their way indoors.
Because noise enters much like air, the best way to stop it is to seal gaps, add mass, and block its path.
Can All Outside Noise Be Blocked?
Not entirely — but you can dramatically reduce it. The results depend on factors like noise intensity, frequency, and proximity.
For example, heavy machinery or construction noise produces strong vibrations that may still be faintly audible. Noise from upstairs or downstairs rooms can also travel through floors and ceilings. Even so, effective soundproofing methods can reduce outside noise to levels you’ll barely notice.
How To Soundproof Against External Sounds
Here are the most effective ways to soundproof your space against external noise
1. Seal And Block Gaps and Cracks
Sound travels through even the smallest openings. Check for gaps in:- Window frames and locks
- Cracks in the walls
- Electrical outlets
- Ceiling lamps
- Chimneys and vents
Seal these areas using an acoustic sealant to prevent sound leakage and improve insulation.
2. Add Mass To The Wall
The more mass your walls have, the less they vibrate when sound hits them. Install acoustic boards or acoustic quilts to add density and block vibrations. Decorative acoustic wall panels can also absorb sound reflections and enhance the room’s look.
3. Upgrade Windows and Curtains
Windows are a weak point for soundproofing. Even double-glazed glass allows noise to pass through.
To improve performance:
- Use soundproof curtains with dense, multilayered fabric.
- Install window insets or secondary glazing systems to create an extra barrier against outside noise.
According to research, even thicker glass offers limited attenuation, which is why extra layers and soft furnishings are key.
Additional Tips For Soundproofing
Now that you have the information you need to soundproof from external sounds, here are several
tips to block out external noise.
4. Use Thick Carpets or a Floating Floor
Floors reflect sound just like walls. Adding thick carpets or rugs can soften noise reflections. For maximum impact, consider a floating floor — an extra layer separated from your existing floor using rubber mounts or floor floaters to absorb vibration. (Professional installation recommended.)
5. Block Noise at the Source
If you control the outdoor space, try reducing noise before it hits your walls:
- Install acoustic fencing
- Add hedges or plants to diffuse and reflect sound waves
- Place barriers like sheds or garden screens along the noise path
6. Try Soundproof Wallpaper or Panels
Soundproof wallpaper doesn’t block sound completely, but it helps absorb reflections and echoes. It’s a simple, decorative option if you don’t want to install foam panels or larger acoustic systems.
Stop External Noise From Entering Your Space
By following these soundproofing methods, you’ll soon enjoy a quieter, more comfortable home or office. JCW offers a wide range of soundproofing materials and acoustic products to help you reduce external noise.
Need expert advice? Contact us — our friendly team will help you choose the right solution for your space.
Frequently Asked Questions
Not 100%, but you can significantly reduce it. Using high-quality soundproofing materials and proper installation can make most noise virtually unnoticeable.
Start by sealing windows and doors, then add secondary glazing or soundproof curtains. Combine this with thicker wall insulation for best results.
It won’t block sound entirely, but it helps absorb reflections and reduces echo, making rooms quieter overall.