Soundproof Existing Windows Today

Since 1960, Cityproof has been a market leader in soundproof windows. Our City Windows dramatically reduce city noise and improve quality of life at both home and work. The #1 way noise penetrates apartments, homes and offices is through exterior windows.

With Cityproof, there’s no need to replace or modify windows! Our interior Citywindows can be more economical and provide more noise reduction than replacing windows.

Our custom-designed and manufactured Citywindows are installed on the inside and work in conjunction with your existing exterior windows to create a buffer zone of airspace that seals out loud city noises.

Here are the benefits of Cityproof’s 3-systems-in-1 interior windows:
  • Up to 95% noise reduction
  • 99% draft and dirt elimination
  • Up to 30% energy savings per year
  • No structural changes to existing windows and no obstruction of views

Call us at (718) 786-1600 for more info today. Or fill out our Get a Quote form, and we’ll get back to you promptly, usually within one business day.

Cityproof Installation Showcase

Soundproof Window Photos
Residential Windows Commercial Windows Landmark Building Windows

Since 1960, Cityproof has installed more than 45,000 custom windows in over 3,800 residential and commercial, non-landmark and landmark buildings in the metropolitan New York area.



  • “Not only is it quiet, but it looks great, and most importantly the installers did a very professional job . . . timely and no mess.”
    – Maria R.
  • “I just wanted to thank you for making our nights so much more peaceful. It’s an amazing difference with our new soundproof windows. We forget we are in the city.”
    – John C.