Demo video
Above Ground Train in BK
Custom Soundproof
Window Inserts
Installed in the NYC Area
Effective at blocking heavy city noise
Renter-Friendly
Full-Service Install
7-Day Turnaround
The Whisper Windows Difference
Why Our Inserts Work So Well in NYC Homes
Built for NYC Noise
Engineered for NYC’s toughest noises: traffic, sirens, construction, trains, planes, and other low-frequency sounds.
Fits Every Window Type
Pre-war, brownstone, floor-to-ceiling, sliding, crank-out, tilt-and-turn, and oversized windows—plus solutions for ACs, floor heaters, and irregular shapes.
Full-Service, Hassle-Free Installation
Our NYC team handles measurement, fabrication, delivery, and installation. Most projects complete in 7–10 business days—much faster than national alternatives.
Best Soundproofing Value through Smart Design
We tailor our service to your window and noise profile, adding renter-friendly frame buildouts that expand the air gap for studio-grade acoustic results—far beyond DIY inserts.
Our Process
How It Works
1
Consult
We assess your noise concerns and window type, then recommend the best insert system for your home.
2
Measure & Build
We take precise measurements and custom-build your inserts in our NYC workshop for a fast turnaround and perfect fit.
3
Install
We deliver within 7–10 business days—with full-service and spotless cleanup included.
Two Custom Systems —
We'll Recommend the Best One for You
Both systems are renter-friendly and professionally installed.
During your consultation, we'll recommend the system that performs best for your window setup and everyday usage.
Compression Inserts
No-Drill System- ✓Renter-friendly tension mechanism — no-drill, no adhesives
- ✓Protects and preserves specialty and historic windows
- ✓Ideal for standard-sized single windows
- ✓Proprietary fit-adjustment mechanism for tight seal and better performance on uneven frames
Magnetic Inserts
Versatile, High-Performing- ✓Fits all window types, window AC, floor heaters, and more
- ✓Easier window access than compression inserts
- ✓Modular configurations for extra-large or multi-pane windows
- ✓Long-lasting magnetic mechanism maintains tight seal over time
- ✓Renter-friendly — fully reversible with small patchable mounting points
Hear the Difference
Unedited Before-After Demos showing how our inserts reduce real NYC noise.
Demo video
Sirens in Soho
Demo video
Industrial Fan on the UWS
Smart Performance Optimizations
Intentional Air Gaps for Better Noise Reduction
Noise performance depends heavily on the space between your window and the insert. We design each installation to create the ideal air gap for your window type and noise profile.
When helpful, we add a clean, renter-friendly frame extension that increases this air gap and delivers significantly stronger low-frequency noise reduction.
Frame extensions are an optional performance upgrade (~$250 per window) offered exclusively by Whisper Windows.
Recommended Air Gap
For Different Sources of Noise (Inches)
0"
2"
4"
6"
8"
10"
12"
14"
3-5"
Dog Barking
6-8"
Regular Traffic
7-10"
Above-Ground Subway
9-11"
Industrial Condensers
10-13"
NJ Light Rail
Why Professional Installation Matters
✓Professional, precise measurement ensures smooth installation
✓Custom-fit and adjusted onsite for a tight seal
✓Acoustic-grade 1/4"-1/2" panels are 3-7x thicker than typical window glass
✓Full-service installation by our team
✓Expert consult to customize product to your window type and noise profile
✓Cost similar to DIY acoustic inserts—but with full service included
| Feature | Self-Install Kits | Whisper Windows |
|---|---|---|
| Measurements | XSelf-measurement prone to errors | ✓Professional, precise measurement |
| Fit & Seal | XGaps or imperfect seals let in noise and drafts | ✓Custom-fit and adjusted on-site for a tight seal |
| Performance | XShipped panels use lighter, thinner materials | ✓Thicker 1/4" – 1/2" acoustic-grade panels |
| Installation | XUnpack, orient, adjust window treatments, and install hardware yourself | ✓Full-service installation by our team |
| Custom Optimizations | XYou choose product type and placement alone | ✓We recommend the ideal configuration on-site for your window type and noise profile |
| Cost | ✓Lower cost for thin insulation-only inserts ✓Lower cost for very small windows | ✓Similar cost as DIY acoustic inserts—with full service included ✓Often cheaper than shipped inserts for oversized windows |
Better Noise Reduction Than Replacement Windows
Our inserts leverage your existing window to create a mass–air–mass system—the gold standard for soundproofing. The result is dramatically better noise reduction than window replacement, with no construction and at a far lower cost.
Testimonials
What NYC Customers Say
Read more reviews on Google
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Simple, Transparent Pricing
Most NYC projects range from $700–$1,800 per window, depending on size and configuration.
✓ Full-Service Install✓ Includes Consultation, Measurement & Installation✓ Delivery by our Local NYC Team
Ready to Quiet Your Home?
Complete the form below to get your free quote.
Request A Quote
NY & NJ Local Service with Free Installation
Shipping To All Contiguous-US
Shipping To All Contiguous-US