How to insulate your windows for winter | Tom’s Guide

If you’re wondering where that draft is coming from inside your cozy home, your windows are probably to blame. Rather than spending a fortune on new windows (or sweaters!), You can easily insulate your chilly windows to keep the heat in for winter.

What you’ll need

Damp cloth and towels

Putty knife

Caulk gun

Window film

Expanding foam

Thermal window treatments

Draft ‘snake’ or stopper

In fact, sealing your windows for the winter is a cost-effective, no-fuss way to prevent cold air coming through any gaps or cracks. It also regulates the surface temperature of your window to ensure no condensation build-up, which would be the case for those who crank up their heating.

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