Our acoustic grade Indow windows have significantly reduced ongoing construction sound. We initially purchased 4 Indow window inserts to see if the product would meet our needs. Within less the a week we proceeded with a second order of 4 more Indow windows for two other rooms in our home. Although, they are pricey they are well worth the investment. Our quality of life has improved and the inserts look great! Our assigned specialist and Indow window customer service reps were not only patient but, professionals. Definitely a product we will continue to purchase for our future build.