Duck MAX Strength Window Insulation Kit, Winter Window Seal Kit Fits up to 10 Windows, Heavy Duty Shrink Film Cuts to Size fo
4.4 | 2,773 ratings
Price: 26.68
Last update: 01-22-2026
About this item
- Save on energy costs during cold weather months. Duck Max Strength shrink window film is puncture-resistant and two times thicker than standard window kits to create an airtight seal inside your home to block drafts and cold weather
- Easy-to-install roll of shrink film means no measuring needed - once applied, cut film to size
- Tools needed: scissors and hair dryer. For best results apply window films indoors on clean and dry surfaces, including painted or finished wood, aluminum or vinyl
- After installation, crystal clear and transparent window film is easy to see through. Once season is over, the window kit removes easily
- Window Kit includes 2, 62" x 210" roll of shrink film and 2, 0.5" x 54' foot rolls of tape; Can insulate up to 10 standard sized 3' x 5' windows
Top reviews from the United States
- TpecenkaEasy Installation, high qualityEasy to install, works as it should. We live in and older home, we could probably use new windows, but in today's economy- who can afford that?
We've used other brands in the past years, but this one has really made a difference in holding in the heat. Installation is easy peasey! - SparklesNice qualityNice thickness . Does the job. I had the thinner plastic to compare it to and this one I’d definitely stronger . I use it to cover my whole fireplace in the winter. I know it seems counterintuitive but we don’t use it and it lets in so much cold air. Also used to cover air conditioner units in walls and some drafty windows. It really cuts down on cold air.
- BTCThe tape doesn't always stick well. One person can do the install.The double-sided tape included sometimes sticks to the wall or window frame, and other times it does not. I suspect this is because of incompatibility with some types of paint. I ended up using clear box packing tape to secure the edges of the plastic to the wall or window frames. This is behind the drapes, so out of sight. The shrinking works fine and make the plastic almost perfectly clear to look through. There is a film that is sometimes visible. I'm not sure if this is from packing powder used to make sure the plastic doesn't stick to itself or what, but it is sometimes visible based on the angle of the sunlight coming through the window. The box states, enough to cover up to 5 windows. This is true, but to do 5 windows, they will need to be fairly small. The funny part is that they are clear enough where flies and other insects run into the plastic as they fly towards the window light. The plastic is stretched tight, so they bounce off it and a drum sound is heard. I have two windows opposite one of my rooms, and the flies will go back and forth between them, making the drum sound each time they hit the plastic. This isn't a problem, the fly swatter comes out, and they are swatted. I put this here so if you decide to purchase and install this kit, you won't think you're going nuts when you hear this strange drum sound from time to time. My home is an old modified mobile home into a permeant residential house. Being so old, it has single pane glass. I'm hoping this kit will help reduce the winter heating costs. We have a few low 40 days/nights so far this year, and the kit seemed to work pretty well. The lowest the house has gotten to was 69 degrees on a 42 degree night. Other than the back door (large window in it) and a 3x4 window in the mudd room, all windows in the house have the kit installed. It took two kits to do 3 bedroom windows, 2 mud room windows, 1 dining room windows, and 1 living room window. I only gave a 4 star because of the tape issue. The plastic itself is easy to use, and shrink.
- HeatherMake sure to unfold them!!!It was great!!! It worked!!! My electric bill went down by $75!!! It was crazy!!! I'm very thankful for it!!! It's very sticky it doesn't come off!! It's easy to put up it's easy cut. You have to unfold them, found that out!! I only have four windows to cover!! But it is those with ease and plenty of material left. The sheets are big!!
- JerryKeep comfortable this winterThicker plastic than the average window insulation kit. Easy to install and makes a huge difference in comfort level. We have been having a cold spell here in the North East, and after installing this Duck Max Window Kit, the living room and dining area heats up quicker than before installation, no more draft, keeps the heat in even after turning heat off. Very happy with this purchase.
- MamazonAmazing product will save me hundreds in heating costs!! Try this!!Great deal on this insulation kit. We live in a VERY cold part of the country and I did not even know these DIY insulation kits existed! Tried it out with one bedroom window that allows a lot of winter cold through and voila!! The instructions were perfectly clear and easy to understand and the product easy to install. Just cut to size of window, stick plastic to adhesive and use a hairdryer to make the plastic snug, similar to shrink wrapping (the LOW heat setting slowly shrinks the plastic to fit your window snug and keep the cold from coming through. This is ingenious!! The package is ample and provides enough plastic cover and adhesive for several windows. Duck is a trusted brand and this product is no different than their other stellar tape products. Having absolutely no experience or idea what I was doing, I successfully shrink-wrapped-winterized my window in twenty minutes or less. I will never be without this product to insulate my home for the winter. In one cold night it kept my kiddo’s room at least ten degrees warmer with only one of two windows successfully insulated and no form of heat. Frankly I am amazed!! If you’re not handy, don’t worry. You can do this and with the frigid cold coming, You need this!! This pack was less than twenty bucks and will no doubt make the difference of hundreds of dollars in winter utility/heating bills!
- LCDo not use included adhesive!Plastic is good but the double sided tape is worthless on painted and non painted aluminum. Order different tape or be prepared to toss the kit immediately.
- JULIEAmazing. Great job Duck. Run get yours nowI can’t say enough for this window plastic, so easy since you can cut it to width as needed the double sided tape has held in place and hasn’t budged. After taking my blow dryer to it there is no wrinkles and you can absolutely see right out your window when done it’s not cloud take your finger and tap on the plastic and it’s so tight it sounds like a drum. Great job Duck Max just what I needed.