Do window insulation kits actually work? Yes! They seal off drafty windows so you can spend less on your home heating bills.

Here, we explain how to seal windows with various materials and methods including caulk, weather stripping, plastic shrink-wrap, and draft stoppers. Related: 8 Common Drafty Spots to Check for ...

We’ve rounded up a few essential strategies to seal your windows and secure ... double-sided tape around the window frame, carefully apply the plastic film, and use a hair dryer to shrink ...