Cut the nozzle tip at a 45-degree angle to match the size of your gap (start small—you can always cut more). Load the caulk gun and squeeze a steady bead ahead of the tip, pushing it into the joint. Don't overdo it—a ¼-inch bead is plenty for most cracks.
You wouldn’t leave a window wide open in a blizzard. Yet, millions of homeowners do the equivalent every winter without realizing it. The culprit isn't a broken latch or a missing pane—it’s the hairline cracks, the invisible gaps, the tiny breaches where the frame meets the wall. sealing cracks around windows
Cost: ~$15 per window. Time: ~20 minutes per window. ROI: Lower energy bills, higher comfort, and a quieter home. Cut the nozzle tip at a 45-degree angle
But here’s the good news: sealing those cracks is one of the easiest, cheapest, and most satisfying DIY projects you can tackle. No power tools required. No engineering degree needed. Just a Saturday morning, a few basic supplies, and the knowledge of where and how to look. Before you grab a caulk gun, you need to understand the battlefield. You are fighting a war on two fronts: You wouldn’t leave a window wide open in a blizzard
Grab a tube of caulk. Your wallet—and your toes—will thank you. Need a visual guide? Most hardware stores offer free printed pamphlets, or search "caulking a window bead" on YouTube for slow-motion technique videos.
This is where the wooden window casing meets your drywall. Over time, house settling and seasonal humidity changes cause these joints to open up. These cracks don’t leak wind , but they leak conditioned air —warm air in winter, cool air in summer—through the wall cavity.
According to the U.S. Department of Energy, air leaks around windows and doors account for . That draft you feel isn't just a nuisance; it’s money evaporating into thin air.