Windows have a tendency to leak air around the seams. If you have a lot of windows this can create a chilly draft in the winter. This winterization kit seals up windows and can completely stop the air leaks if installed correctly, which is easy.

After you seal all your windows you will start to notice air leaks in places you didn’t notice before. As you stop these leaks your house will become even more toasty and cozy. Your furnace will run less which saves money. If you’re sealed up well run ceiling fans in winter mode to distribute the heat.

You can get a kit to winterize your windows* cheap cheap from Amazon.