Duck 286218 Extra Large Patio Door Shrink Film Window insulation kit, 1, Crystal Clear

The first time I installed this I put it on the window frame, and while that definitely helped with the cold air from the 4 large old windows along the front of our home, I could still feel a draft. I soon determined that was because the "frame" was an old metal decorative frame, not what one would traditionally be thought I'd as a window frame, and not something I could easily replace or seal. So, I removed the plastic and redid it (with new plastic as I needed it to be wider). It was a little more difficult to get it tight enough that heat application would make it pretty much invisible again, with just a little more effort than the first time around, it came out perfect. This makes a big difference in the warmth of our living room. We have an old home with old single pane windows, so this solution is not 100% blocking. You can still feel that the plastic is cold to the touch, but there are zero drafts. Adding pleated shades (thermal blackout curtains would work too) is the final piece that keeps those ancient windows from driving up our winter heating costs. These were easy to install, just follow the directions and they go on just as stated. The only mistake I made was not pulling the plastic tight enough on the first window. I was concerned about tearing the plastic, but I was worrying for nothing. I pulled it plenty tight on the next 3 windows and there little to no wrinkles. Once heat was applied it tightened the rest of the way to become essentially invisible. I would highly recommend this product.

Fácil instalación y cumple expectativas!

Super clear finish. Went on as well as these things can. Does the job, no air coming through and it looks like it’s not even there. And it’s cheap so just buy it.

Excelente produto, de qualidade. Extremamente útil para o inverno no sul do BR.

I read the reviews and watched the instruction video several times and didn't have any problems at all with installation. I have a large patio door that's single glazed with minimal sealant around it. I put this over the one window (left) to see the difference. It still collects a little condensation (-2 celcious outside that day) but nowhere near as much as the uncovered door