Do Soundproof Windows Actually Work for Traffic Noise?

If you live near a busy road, you already know the answer you're hoping for. Here's the honest truth and why CitiQuiet windows might finally give you your quiet back.

Traffic noise is one of the most common complaints we hear from homeowners and businesses across the country. Horns, engines, sirens, motorcycles. It doesn't stop, and regular windows do almost nothing to keep it out. So the question is fair: do soundproof windows actually work, or is it just clever marketing?

Why is traffic noise so hard to block

Traffic noise isn't one sound. It's a mix of low rumbles from engines, mid-range tyre friction, and sharp high-frequency honks. Standard double-pane windows are decent at the higher frequencies, but low-frequency road rumble travels right through them like they're barely there.

That's why so many people replace their windows and still hear everything. The glass itself isn't the problem. It's the lack of mass, the thin air gap, and the way single-material glass vibrates at a resonant frequency that lets certain sound waves pass straight through.

What CitiQuiet windows do differently



SoundProof USA installs CitiQuiet secondary interior windows, a second window that sits inside your existing frame, creating a wide air gap between the two panes. This air gap is where the magic happens. Sound loses significant energy crossing that dead air space, and the laminated glass in the CitiQuiet unit absorbs what's left.

The laminated glass uses a PVB interlayer that decouples the two glass layers, so they vibrate at different frequencies. This breaks the resonance problem that makes standard windows so useless against traffic noise. The result is a measurable, dramatic drop in the sound you actually hear inside.

What types of noise does it handle?

Traffic and road noise
Cars, trucks, and tyre friction on highways

Trains and rail
L trains, freight, horns at crossings

Sirens and horns
Emergency vehicles, urban commotion

Construction
Drills, heavy equipment, and site noise

Will it work in your home or office?

CitiQuiet acoustic windows are custom-made to fit inside your existing window frames. No renovation, no permits, no changing how your windows look from the outside. They work with double-hung, sliders, casements, and more. For businesses, installation is scheduled around your hours so there's zero disruption to your day.

If you're done tolerating the noise and ready to actually do something about it, SoundProof USA offers a free consultation to assess your specific situation and recommend the right solution for your space.








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