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How To Use Window Shrink Wrap To Stop Drafts

February 25, 2026

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Lately, I've been leaning into crafty home decor and thrift flips.

Those tend to be my favorite kind of DIYs.

Vine covered clocks. Whimsical pin cushions.

The pretty projects.

However.

Easy DIY Window Insulation Winter

Whether you rent or own your home, there's no denying that there are always tons of those not so pretty projects that are just as - or dare I say it - even more important that the decorative ones.

So today's share won't be the most attractive DIY, but it may help you keep your house a little warmer this winter.

Our home was built in the 1920s and while we've renovated almost every inch of it, the one thing we haven't done, is replace the old vinyl windows.

Snowy Window In A Bedroom
This winter was brutally cold.

When we moved in there were so many other priorities. And when we were done renovating and replacing all the big stuff, we just didn't have the bandwidth to tackle the windows.

Most of the year, it's fine. Even most winters. But this winter was brutal and the chill came in right around the window frame.

No good.

Of course, new windows would solve that problem, but opening giant holes in the house when it's below zero outside is not something we were willing to do.

Go figure.

Instead, I relied on a method I've used before with great success.

I used this kit to cover the windows with plastic.

Window Insulation Shrink Wrap Kit
See The Kit I used HERE

Now before you get all, well that's just ugly and it probably doesn't work anyway, hold on.

That was my first reaction when my husband first suggested it, years ago. It was a hard sell, trust me. 

But since it was our best option at the time, I gave in.

Oh..and before you ask, yes, the tape peels away easily, removing the plastic, so you can open the windows, in the warmer weather.

How To Insulate Your Window With A Plastic Kit


I promise, when done right, you can't even tell the plastic is covering the glass. And guess what? It does work. Really well, actually. 

The Step By Step DIY

Besides being a bargain way to add a little extra insulation to your home, it's also a super simple DIY. In fact, I did it all by myself. In less than 15 minutes, I had two windows sealed up and looking great.

1. Measure


First, I picked up this kit, after measuring each of my windows so I knew how much plastic I would need. There are several options available, based on the size and shape of your windows.

I started by opening the package, removing the tape, the 4 sheets of shrink wrap plastic in the kit and reading through the instructions to refresh myself.

Window Shrink Wrap Kit Contents

2. Apply The Tape


Next, I grabbed the roll of clear, double stick tape and found the opening edge.

Double stick tape for insulating windows with plastic

Then I unrolled it and stuck it to the outer edge of the window frame, just outside the sashes. I basically covered any area or gap where the cold air could be coming into the house.

I applied the tape in four separate strips, one on each side of the window. I stuck it to the window before I cut it. 

You could measure and cut first, then apply the tape it you find that's easier.

How To Insulate Windows With Plastic

3. Stick The Plastic To The Tape


Once the entire window was is covered, I opened up one of the sheets of plastic.

They are large, usually much larger than the windows, and they should be...because when you stick them to the tape, you want there to be an inch or more of excess that you will trim later.

It makes for a better seal.

With plastic in hand, I removed the backing paper from the strip of tape on the top of the window, exposing the sticky surface.

Removing the plastic backing from plastic window installation kit double stick tape

I placed the plastic on top of the tape, stretched it across the top of the window from one corner to another, pressing it again the tape as I went along.

How To Cover Windows With Plastic

I repeated the process all the way around the window frame, making sure the plastic was taut, until all four side were covered.

4. Shrink The Plastic With Heat (and get a good seal)


Ok, so this is where the magic comes in. Once the plastic is taped up, no matter how much you stretch it, there will still be wrinkles in it. 

You can see them in my photo.

To remove them, I used a hair dryer to heat the shrink wrap, which tightened it up. 

How To Use A Hairdryer To Install Window Plastic

I held the hairdryer about 4-6 inches away from the plastic sheet, and kept moving it around until the shrink wrap was tight, clear and wrinkle free.

5. Trim


Then I cut off the excess and I was done.

And see. Crystal clear.

You'd never know, from the inside or the outside, that I had plastic covering the glass.

Plastic Insulation Sheets On Windows

But it's way warmer in here, now.

A successful DIY and an easy and economical way to keep that cold air from coming in around my leaky windows.

So I can get back to all those pretty projects.

Fabulous.

๐Ÿ˜Œ

Are your window letting in cold air?
Kim Signature


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  1. Are you reading my mind? It's been so cold here, I just asked my husband about adding this plastic to our windows, but he told me he knew nothing about it. Then you popped up! Going to get this right now and take care of it before he even gets home. Thanks!

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    1. Oh yay!! That makes me so happy to hear. I hope you'll let me know how it goes. It really does work.

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  2. I'm raising my hand.๐Ÿ–️ I'm a plastic user. Stigma be damned. It works.

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    1. It really does...and I get it. When people hear plastic, I think they get visions of messy tarps in their head.

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  3. We've used that same kit. It's really amazing how it can't be seen once you finish. And it really does help!

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    1. It's come in very handy this winter and it also keeps the windows clean! No window washing! Haha...that's the best part!

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  4. This is very helpful information, dear friend ๐Ÿงก Thank you so much for sharing this.

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    1. Glad it helped, Linda! Thanks for the visit today!

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  5. Having owned a few old houses, we have used this shrink wrap and it is the best. We also learned if it starts to sag a little mid-winter, you can use that blow dryer again and you're good as new!

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    1. Yes, you're right, Ann! It’s very forgiving with a little heat. Wouldn’t it be nice if that same trick worked on my own mid-winter sag? Hahaha!! If only…

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  6. While I've never used or installed this myself, we have lots of friends and family with old new england farmhouses and I've seen firsthand how well this works for helping keep out the cold.

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    1. I was shocked at how well it worked, Joanne. It's made a huge difference for us this winter.

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  7. That is a smart way to keep heat inside your home and cold air outside. My husband and I owned a window/siding/door company for almost 20 years. When we turned our business over to the foreman we had a 'deal' that we would get windows 10% over cost for our lives. I don't think he expected that we would move 8 times. lol.....
    Here's to spring coming soon! xo Diana

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    1. I never knew you owned a company like that, Diana. You are full of surprises! Is there anything you haven't done? You remind me so much of my mom...gorgeous blonde with a rich past from show business to construction and lots in between...and after! And that's funny, that deal paid off for sure! Hahaha!! Here's to an early spring!! xo

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  8. This is a great idea. I like that you can shrink it and make it tight on the window. Have a great rest of the week. Hugs. Kris

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    1. It’s definitely the cheap and easy way out! Just my style! ๐Ÿ˜‰

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  9. This is an interesting product that I have never heard of! I love home DIYs like this - a little bit of effort for a big payoff. Does it seem to work very well? I haven't been opening my windows much.

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    1. It's cheap and easy, Gina! My kind of DIY and it does work really, really well. Keeps the cold out...but we actually keep it up on some of the draftier windows in the summer to keep the AC in, since we don't open those windows either. If you try it let me know!

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  10. Kim, I've never heard of this, but it sounds like a great solution of keeping the cold air out especially with this COLD and SNOWY winter we've had. I'm glad this is working out for you.

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    1. So glad I posted this then, Julie. I was sure everyone knew about it and almost didn’t share. Hopefully, it’ll help someone out there who needs a quick and cozy fix for the chilly days!

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  11. Very interesting Kim and useful information as well. When we purchased our home it was such a great buy, but needed some work. We have changed everything in the house from floors to even the smallest details...with the exception of two french doors. I will be trying to make this work on there.

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    1. I'm so glad you found it helpful, Shug! Your home story sounds very familiar. Ours needed everything, too, since it was an old 1920's summer beach cottage. The plastic has been a lifesaver for us. I hope this trick works for you, it's super easy...and cheap. My favorite kind of DIY! Ha!

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  12. Hi Friend,
    We also do this. As you know our house is an "this old house" we have replaced some of the windows, but not all. So yes, this helps so much during our cold Wisconsin winters.

    How much snow did you get in the past storm?

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    1. We’re in the exact same place with our old house, Carla. We’ve replaced some, but not all. The plastic is our solution…for now! ๐Ÿ˜‰
      As far as snow totals go, it’s a bit perplexing. We had so much on the ground from the last storm, it was tough to measure, but I think we got close to 20” on Monday and then it snowed again yesterday, adding another 3” to that…so a lot! ๐Ÿคฃ I’m so ready for spring!

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  13. I have really good windows, so I honestly never feel a draft or the cold, but this is good information and I am going to file it away in my virtual portfolio of incidental knowledge.

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    1. I'm envious of your good windows, Pattie! We have updated vinyl ones in some of the rooms, but when I say updated, I mean from 1986! The wooden ones we installed when we moved in are so much better. I just can't deal with opening walls right now...or in the last decade either! Hahaha...I guess I'm renovation weary, so plastic it is!!

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  14. Ive never used one Kim but after this brutal winter I might need it. We replaced our windows a few years ago but it still feels cold in the house.

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    1. This winter has been brutal, Mary. I'm not sure any windows could really keep up! The plastic really does help though. Stay warm my friend. Spring in on the way!!

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