Soundproof windows are not replacement windows. Your current windows remain in place. Our windows go in front of your existing windows so ' no need for the inconvenience of major renovations. Easily installed, the entire job can be done in about 40 minutes each with no mess. Transform your noisy space into a peaceful oasis with our soundproof windows! These innovative windows are installed in front of your existing exterior windows. They are made of hardened 3-ply crystal clear acoustic laminated glass and sturdy aluminum frames. ' settle for mediocre soundproof windows upgrade your living or working space today!