Soundproof Windows, Inc., a company that engineers windows, has adapted recording studio window soundproofing technology for residential properties by creating a secondary soundproofing window that installs inside, behind the existing window. The product is custom designed specifically to match – and function – like the original window. The OEM assists interior designers with measuring, ordering, and installing the windows. Installation is usually completed in about an hour or two.
The inner window reduces noise from entering on three fronts: the type of materials used to make the pane, the ideal air space between original window and insert and improved, long-lasting seals. The combination can reduce external noise by up to 95% and achieve window STCs from 48 to 57.