CitiQuiet Windows are manufactured to mirror the configurations of the existing windows so they can be installed in most any existing window opening. Many traditional soundproof office window solutions require removal and reinstallation of the new windows, building permits, architectural drawings, and large budgets, which is why almost every commercial client who has a noise concern eventually turns to CitiQuiet Windows for a superior built soundproofing window system (which is extremely cost effective compared to traditional window installations).