Interior Storm Window Kits: Reusable DIY Window Inserts

I had used a similar product 40+ years ago...one tends to loose site when you move about, life happens etc. After living in my home for 19+ years, tends to get a little chillier each year. I started looking for the plastic insulation for windows and came across this site!! First I have resealed ALL windows with the weather stripping, I caulked and re-caulked the entire upstairs, and ordered two three packs of (48"x72"). Once they came in I immediately cleaned the windows, and each blind slat, then installed them on my two windows in my bedroom. Yes, I fully intended on covering the window with the blinds close. I have a lot of allergies, so opening windows is a no go.

I can honestly say, I am pretty cozy and stay warm in the evenings, even during low temperatures. Last year I tried keeping my thermostat down at 98 degrees in winter, but kept putting it one or two degrees higher to take the chill out of the air. This year, I have kept the thermostat at 68 degrees, sometimes I forget I have it set for 67 degrees from 430am - 5pm during the weekdays. Before installing, going to bed meant, socks, slippers, bathrobe and several blankets - sometimes still getting a chill, after installation, can sleep normally and even got warm enough to move some of the blanket off, no chills.

This weekend, I will be installing the inserts in the two other upstairs bedrooms, then the living room. Then will follow up with a couple of the basement windows.

Thank you!!! works GREAT, absolutely NO cold coming from the window area at all!! And on the PLUS Side, the noise that was really bothering me, sensitive ears, I may slightly hear a muffled sound, but can work and concentrate on the computer without issues.

Thank You!!!
MPetry

Im really happy already with this product. I was looking for something for winters that is more durable. The ones with double-sided tape would always end up falling off. The fact the plastic can be removed and reused each year makes it worth the premium you pay vs the cheaper stuff.

I have larger windows but was still able to get the 48" width and run trim on the middle, and it still managed to snap in place with two layers.

I can't speak highly enough about their customer service. I had a small issue with the wrong size film being sent and they resolved it no fuss. I also had another order that I later asked to cancel and it was a breeze.

I have been looking for something to seal the windows in Winter besides using the standard shrink wrapping kits. My windows have a ledge, not a flat edge all away around the window. I was able to jerry-rig a way, with the extra pieces, so I could use the kits. I have a heavy duty tin snips that allows me to cut the pieces to the right size as well. I will be ordering more kits for my other windows that can use this.

I used 2 kits and taped the seam using weather using tape. It’s doing a great job of keeping the drafts out and letting light in. Super sturdy. Glad I found these.

If you have older windows and don't want to replace, there's a few options.
1. Get the shrinkwrap style kits - need to reapply annually, when you remove the glue/tape the paint comes off, and the adhesive doesn't always stick.
2. Expensive windows inserts that are about 70$+ each - this is the best option if you can afford it
3. This product. It lives in middle of the two in that it's not obscenely expensive while being affective, but isn't as pretty as the inserts. The plastic channels aren't removable without paint damage, but they're not too conspicuous in most use cases