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If the amount of air that leaked from a typical home’s gaps and cracks was measured, it would equal the amount of air that leaves through an open window.

This is why so many Home & Garden experts recommend a recaulking of your home prior to the Winter — a solid caulk job can reduce a home’s Winter energy bill by 20 percent.

In this 2-minute video from Home Depot, learn how you can to identify leaky windows, and then how to fix them using caulk, putty knives and a host of other tools. Or, if DIY is not your style, find a competent contractor online.

The project is small so the costs should be low.