All Noise Control Soundproof Office Windows are the most cost effective and expedient solution to eliminating unwanted noise in office setting, even when the noise comes from within your building such as an entryway. When the sounds of the city become too much to work in peace, a ANC Window is the perfect solution. We fit our custom made ANC Window into the existing window opening in a very short time without permits or building management permission, making your office or conference room free of unwanted city noises.