First of all…thanks Indow!!! First of all, I am an architect and I needed Indow inserts for 3 old casement windows which had warped and are now stewed closed on an enclosed mahogany framed porch. Working with Indow was very organized and really quite straightforward. Pricing was reasonable and their checking and confirming my measurements was extremely helpful!!! Indow inserts arrived on a timely schedule, beautifully packaged, and safely delivered. The inserts fit perfectly and have markedly reduced the incoming sounds (from the above ground Subway)!!! All good!!! Hope to do additional fixed windows on this enclosed porch in the future!!! Thanks Indow!!!

Worth it Circa 1860s house with circa 1980/1990s windows. We ordered 14 inserts for entire home, and they made major impact on drafts and overall temperature control. Had fit issue due to one quirky window frame, and company sent replacement TWICE until it was right. Fantastic customer service, seriously. Got the standard inserts, not the noise-dampening ones, and while not the primary goal, have certainly noticed significant difference in outside sound reduction, as well. Not cheap, but waaaaaay cheaper than 14 new windows in an inflated market with some questionable workmanship right now, too.

Cut bedroom decibel level in HALF. Impressed. 5 stars for a great product. I live next to a busy highway and it's been incredibly disruptive to my sleep. Indow has cut the decibel level in my bedroom by HALF. Impressed. My only gripe: Shipping took about a month, and instead of just saying "shipping takes a month" (which I would have been completely fine with) the company auto-sends an email after purchase saying "We have worked hard to absorb the supply chain issues that have affected the entire world". This is unprofessional and annoying and as dated as listing your pager number on a business card or fax number on your website. Companies need to stop blaming acts of God for your poor customer service department or slow response/delivery times. Deal with things out of your control, and stop making excuses because of them. (Especially THREE YEARS later)

They work! They actually do work surprisingly well! Don't expect 100% noise reduction, or you will be disappointed. But there has been a significant drop in the road noise in the rooms where I bought the windows, such that it does not bother me anymore and I tune it out. The installation and measuring process were a lot harder than advertised, recommend getting a handyman to help.

Bad experience Bad experience. I bought this product expecting a noise reduction which did not happen whatsoever. The only response I got is that performance can not be guaranteed. It was so frustating because they dont give you money back either. $700 trough the drain.