Easy to install, and they really do seal off drafty windows. Even though they cover the window, it still allows the light through and you can see through them, even if it is blurry. Definitely a huge help to those with old drafty windows. Don't leave them on past the season -we noticed that some of the paint peeled off on the wooden moulding, but given how they helped seal the windows from the cold, we didn't mind.
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This item: Frost King V73/9H Indoor Shrink Window Kit 42 62-Inch, Clear, 9-Pack
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$8.99 ($0.21/feet)
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From the manufacturer
Frost King, Indoor Shrink Window Kit
Kits feature a crystal clear plastic sheet that shrinks tight and wrinkle free with an ordinary hand held hairdryer. The Kits can be easily installed on metal, painted, varnished wood or vinyl clad window frames with the double-face tape or nails provided.
Kits are available for basement windows, standard windows, extra large and picture windows and patio doors.
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Customers say
Customers find the window film easy to install and use, with good functionality and temperature control, effectively keeping cold and hot air out of the house. However, the adhesion and durability receive negative feedback, with customers reporting that the tape doesn't stick and the plastic film rips during installation. Moreover, the quality and value for money are mixed, with some customers praising the product while others find it poor quality and not worth the investment.
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292 customers mention installation, 228 positive, 64 negative
...Overall it is easy to install. The double sided tape unfortunately didn't stick to my window frame so I had to use a different one and some staples....Read more
These are always my go-to when the Fall rolls around. They're easy to put up and when taking them down, nothing is left on the window...Read more
...Overall, this was an easy install and made a noticeable difference in warmth. I’d definitely recommend it.Read more
Hard to install. I guess I will try it next wi yer. I ended up only doing our guest room. Got frustrated and quit.Read more
250 customers mention functionality, 194 positive, 56 negative
Works great, the tape is really sticky. I have larger windows and had to combine it. I ordered knowing that. And has been wonderful. It’s my go to....Read more
Great for diy folks and works well! Put it up in two windows and it took maybe a half hour. Convenient and helpful during winter.Read more
Does the job it i intended for better than I would have ever imagined.Read more
Doesn't work...Read more
216 customers mention temperature control, 191 positive, 25 negative
Easy to put up and keeps the cold out. Bought these to help with older windows during -30 days, could instantly tell the difference.Read more
It keeps the cold air out, the price was reasonable. Installation was quite easy. It looks great. It’s still on the window and that’s good....Read more
...Once up it seems to keep the cold out, I was also thinking of leaving it up for the summer to keep the hot air out!Read more
...times and it definitely does the job of keeping the cold out and the heat in. My heating bills show a major difference and that's my main goal....Read more
69 customers mention ease of use, 60 positive, 9 negative
Easy to use and works great for keeping cold air out, was going to leave it for the whole year until my cat noticed it moving with the air currents...Read more
This is so quick and easy . The tape is very sticky. Be careful with long fingernails . Easy to puncture. Did not use hair dryer. Works fine without....Read more
...Put it up in two windows and it took maybe a half hour. Convenient and helpful during winter.Read more
...It’s easy to do once you get the hang of it. I’m hoping my utility bill will reflect a decent savings this winter!Read more
275 customers mention quality, 152 positive, 123 negative
...this brand for years to winter proof my windows, usually is a great product and it is worth the price except this time around… I am not sure if it...Read more
...You cant use pieces at all if theyre not wide enough! Also the tape is horrible and doesn't hardly stay put but you do get alot of that....Read more
...In general , I would say this is a good product at a fair price, but the tape should be a better quality and at least last through the winter season.Read more
...Wouldn't stick to painted wall or to cleaned tile base. Tape is garbage. Whole kit it garbage. Thanks for wasting my time Frost King.Read more
164 customers mention value for money, 89 positive, 75 negative
...Actually invisible/crystal clear after the blow dryer step. Great price. Plenty to use again for the next 2-3 winters....Read more
...that actually has PVC siding around it or something but it's a waste of money and time on older wood framed windows 😔😔...Read more
...It has been a few weeks and everything is still snug. Good price and enough plastic and the tape works well-got my moneys worth!Read more
...Not worth the money, time and effort.Read more
383 customers mention adhesion, 71 positive, 312 negative
The tape does not stick. I did all my windows and the tape and plastic have fallen off all of them. Poor quality tape but the plastic is durable....Read more
I normally don't get mad about a bad purchase. The tape doesn't stick & I followed the directions word for word....Read more
The tape doesn’t stick I waited the 15-20 min after thinking it was good to go to my surprise the table is coming off the metal surface with in 20...Read more
...Adhesive does NOT stick to flat metal surface of window. Attempted to use adhesive strip on flat foot surface instead.. Does not stick....Read more
201 customers mention durability, 35 positive, 166 negative
...'s supposed to do, but isn't as thick as other brands I've used and tears easily. So take care when installing. Otherwise, pretty straightforward....Read more
This product is very thin and rips easily. May be good in a home without pets or childrenRead more
...The film tears easily while trying to cut it to a size and even while using blow dryer....Read more
...FORGET IT. The film rips....Read more
Keeps the cold out
I was skeptical at first, but this worked far better than I expected. I installed the first one on the window above my garage, and once the plastic was fully sealed, I could actually see it bulging slightly from blocking the cold air. A few hours later, the room felt about 10° warmer than it normally does. The plastic is clear and still allows plenty of light to come through, which is great. The only downside for my setup is that my blinds are mounted inside the window frame, so I can’t open them without removing the plastic. That’s not a fault of the product, just something to be aware of depending on your window setup. Overall, this was an easy install and made a noticeable difference in warmth. I’d definitely recommend it.
Top reviews from the United States
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- Reviewed in the United States on March 19, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
- Reviewed in the United States on March 17, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
- Reviewed in the United States on January 26, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
- Reviewed in the United States on March 17, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
- Reviewed in the United States on March 6, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
- Reviewed in the United States on January 31, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
When putting this up on our older windows, it does not stick. The double sided tape that is provided does not stick to the window or the wall even though both are wiped clean before putting it up. Once it does stick & you use heat to seal it the tape literally comes right off the wall
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- Reviewed in the United States on March 12, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
- Reviewed in the United States on March 17, 2026Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
Top reviews from other countries
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Luis Fernando Navarrete VelazquezReviewed in Mexico on January 2, 2026
Cumplen con lo que promete
Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase - AVReviewed in Italy on December 29, 2025
Good film, annoyingly cut and folded
Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase - Cliente AmazonReviewed in Spain on August 9, 2023
ok
Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase - Terence FungReviewed in Canada on February 25, 2021
Money well spent and helped me saved significantly!
Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
TLDR: After using this product to secure my home, my energy bill dropped significantlyTerence FungMoney well spent and helped me saved significantly!
Reviewed in Canada on February 25, 2021
I moved into a small 20 yr old townhome in Nov 2019, around 1500 sq ft. I was surprised to get my first heating bill (I live in Richmond BC, by gas via Fortis BC). It was way beyond any utility bill I have paid. A year later I decided to install this window insulation kit and you will see in my attachment that my energy used dropped signifcantly. To put things in perspective, remember that in 2019/2020 Jan and Feb it was still ok to go to work and travel so we were barely home and I had the heat down during the day; whereas 2020 we are home all day and needing heat as well. The average temp for both years were 5 celcius in January 2019 and 2020 with 4 celcius in Feb 2019 and 5 celcius in Feb 2020.
Overall, I highly recommend this product to those who want to insulate their home better. Especially those that are older with single pane windows.
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- Tara MaeReviewed in Australia on January 15, 2025
Okay
Size: 9-PackStyle: 42in x 62in - 9 PackVerified Purchase
