We recently moved into a 4,000 sq ft space from a small 1,000 sq ft space. We were so happy to find the perfect space for us. Unfortunately, we didn't realize it was right next to a marble manufacturing/cutting company. Their warehouse door opened up right in line with our office windows. We are an office based business and the noise was intolerable. All day long we hear grinding, trucks, people yelling, beeping, etc. After installing our Indows I can't believe the difference. There is almost NO NOISE. Our staff are able to better concentrate, our customers can't hear trucks in the background, and productivity is soaring. Thank you Indows for helping us overcome our noise problem so we can stay in our new space.