Soundproofing Existing Windows: Key Considerations

With many soundproof interior window manufacturers and soundproofing contractors to choose from, how can you select the right provider for your needs?  Here are a few important criteria for your evaluation.

Time in service

Cityproof has been providing soundproofing services to the New York City and Metro NY Tri-State area since 1960 – a feat that we’ve been able to achieve because of our focus on customer satisfaction by delivering what we promise.

Quality of materials

At Cityproof, we take pride in using only the highest quality materials for our manufacturing and installation.  While other providers may use lower-quality materials in order to keep costs and prices down, we know that it just isn’t possible to achieve up to 95% noise reduction without using the best materials available on the market.

For that reason, we never compromise on quality. We only use:

  • Superior grade laminated glass (up to 11/16 inch thick) including ultra-clear Starphire.
  • Exclusive stainless steel and rigid outdoor grade PVC tracking systems to provide the best possible seal.
  • The highest quality baked enamel paint or anodized aluminum frames, angles and channels.

As a result, our soundproof windows may cost more, but the true value of having these high quality materials directly translates to more efficient noise reduction and a long-lasting product.


When manufacturing and installing soundproof windows, there’s no doubt that windows that are custom crafted based on your precise measurements will perform better than those that have been produced according to average sizes.  If you want truly customized windows, based on exact measurements for your home or office, choose Cityproof.


One final indication that you’re working with a reputable soundproof interior window provider comes from the feedback from past customers.  At Cityproof, we feature our clients’ testimonials prominently and encourage prospective buyers to follow up with us in order to eliminate any concerns or doubts about the value of the Cityproof experience.  We encourage you to do your due dilligence.

If you have any other questions about what sets Cityproof apart, we’d love to hear from you!  Use our contact form or call us directly at 718-786-1600 to find out more about our customized soundproof interior windows.