Soundproof Curtains Guide

"Soundproof curtains" is one of those terms that oversells reality. Heavy curtains can help with noise, but they won't make your apartment soundproof. Let's look at what they actually accomplish and whether they're worth buying.

What Soundproof Curtains Do

Heavy curtains provide three noise-related benefits:

1. Sound Absorption

Dense fabric absorbs sound waves that hit it, reducing echo and reverberation in your room. This makes your space feel quieter even if the same amount of noise is entering.

2. Minor Sound Blocking

Heavy, tightly woven fabric adds some mass between you and the window. This can reduce higher-frequency sounds slightly. Don't expect dramatic results—curtains are much lighter than the walls around them.

3. Gap Coverage

Floor-to-ceiling curtains that extend past the window frame cover gaps where sound might leak through. This can be meaningful if your windows have poor seals.

Realistic Expectations

Based on various tests and user reports, heavy curtains typically reduce noise by:

• High frequencies (birds, voices): 5-15% reduction
• Mid frequencies (traffic): 3-10% reduction
• Low frequencies (bass, trucks): Negligible reduction

That's "take the edge off" territory, not "solve your noise problem" territory. If traffic noise is mildly annoying, curtains might make it tolerable. If it's keeping you awake, curtains alone won't fix it.

What to Look For

Weight and Density

Heavier is better. Look for curtains that feel substantial when you hold them. Multiple layers (like curtains with a separate blackout liner) add more mass.

Tight Weave

A loose weave lets sound pass through. Tighter weaves block more. Hold fabric up to light—if you can see through it easily, it's not ideal for noise.

Full Coverage

Curtains should extend:

• At least 4-6 inches beyond the window frame on each side
• From ceiling (or as high as possible) to floor
• With enough fullness to drape properly when closed

Seal Against the Wall

For maximum effect, curtains should press against the wall or window frame when closed, creating a seal. Wraparound rods or ceiling tracks help achieve this.

Types of "Soundproof" Curtains

Heavy Velvet

Dense, thick fabric that provides good absorption. Classic look, but heavy and can be expensive.

Thermal/Blackout Curtains

Not specifically for sound, but the multiple layers (usually including a foam or dense backing) provide similar benefits. Often more affordable than dedicated acoustic curtains.

Acoustic Curtains

Purpose-made for sound reduction. Usually contain mass-loaded vinyl or other dense materials. More effective than regular heavy curtains but also more expensive and less attractive.

Moving Blankets

Not pretty, but dense moving blankets hung over windows provide decent sound absorption at low cost. Good for temporary use or rooms where appearance doesn't matter.

Installation Tips

• Use sturdy hardware: Heavy curtains need strong rods and brackets
• Ceiling mount if possible: Creates more coverage and better seal
• Consider return rods: Bend around to the wall at the ends
• Layer curtains: Sheer + heavy creates an air gap that helps
• Overlap in center: Make sure panels overlap when closed

Are Soundproof Curtains Worth It?

It depends on your expectations and existing situation:

For serious window noise, window inserts are more effective, though more expensive. Curtains can be a good complement to other solutions.