Do Window Insulation Kits Work? Explanation + Cost To Install

Quick answer: Window insulation kits provide an extra layer to windows that helps regulate your home’s temperature so it feels warmer, reduce glare, and block UV rays.

There are many benefits to living in an older house. Many homeowners covet unique layouts and vintage features, but once colder weather hits, many realize they’re not prepared for the drafty windows. After searching for DIY insulation situations, you may be left wondering, “Do window insulation kits work?”

Luckily, they do, and they’re a relatively inexpensive fix for drafty windows. Keep reading to learn how to insulate your windows for winter so you can stay comfortable all year.

How Do Window Insulation Kits Work? 

Window insulation kits use a thin layer of plastic to create an airtight seal between the window and the inside of your home. Drafty windows have small gaps between the frame, sill, and glass that you may only notice when the temperature drops. Window insulation kits seal the entire window and frame to keep the cold air out.

How Much Does It Cost To Install Window Insulation Film? 

Window insulation kits typically cost about $10 to $20 per square foot for the kit and about $8 to $12 per square foot for installation labor. The total price to install window insulation film will vary based on the size and type of window you’re insulating, the number of windows, and the geographic location of the building. Compared to the cost of replacing windows, using a film insulation kit is much less expensive.

Window Insulation Kit Pros and Cons

Window insulation film is a lower-cost alternative to replacing your windows, but it’s not without problems. Below, we’ll discuss the major advantages and disadvantages of using an insulation kit.

Pros

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