When temperatures dip in North Texas, even a small draft can be noticeable and drive up energy bills. If you’ve felt chilly spots near your windows, doors, or walls this winter, you may be losing heat through gaps you can’t see.

Before you call in a professional, take time to do a little detective work. Sometimes homeowners can identify where that cold air is sneaking in and decide whether a simple fix or professional repair is needed.

Start with a Quick Walk-Through

On a cool, breezy day, take a slow lap around your home. Pay attention to spots that feel colder than others near windows, door frames, attic access panels, vents, or electrical outlets. Hold your hand about an inch away from these surfaces. If you feel temperature changes or a faint movement of air, that’s your first sign of a draft.

You can also use a small piece of tissue or incense stick to make air leaks visible. Move it slowly along window edges and door perimeters. If the tissue flutters or the smoke wavers, you’ve found a gap.

Inspect Windows for Gaps and Cracks

Windows are the most common culprits behind cold spots in DFW homes, especially older single-pane or wood-frame units.

• Sashes: Open and close each window to see if the top or bottom sash fits tightly. Warped or swollen wood can create small openings.
• Locks and Latches: A loose lock might not pull the sashes together snugly. When locked, the window should feel firmly sealed without any play.
• Frames and Caulk Lines: Check the exterior caulking where the frame meets the siding. Over time, caulk can crack or pull away, letting outside air in.
• Weatherstripping: Look for worn, torn, or missing weatherstripping around the sash or frame. If it’s brittle or peeling, it’s time for replacement.

Examine Doors and Entryways

Exterior doors can shrink or swell with humidity and age, leaving just enough space for cold air to slip through. Close each door and look for daylight around the edges. Common problem spots include:

• Thresholds: If the rubber gasket under the door is flattened or missing, cold air will pour in from underneath.
• Side Jambs: Loose hinges can make a door hang unevenly, creating a gap along one side.
• Top of Door Frame: Even a 1/8-inch gap here can leak as much air as a small open window.

A simple dollar-bill test can help. Close the door on a dollar bill and try to pull it out. If it slides easily, the seal isn’t tight enough.

Don’t Forget Attics, Vents, and Outlets

Cold air doesn’t only enter through doors and windows. In many DFW homes, leaks are hiding in less obvious places:

• Attic Hatches or Pull-Down Stairs: The access panel should have insulation on the back and weatherstripping around the edges.
• Recessed Lighting: These fixtures often penetrate into the attic, creating gaps around the housing.
• Wall Outlets and Switch Plates: Electrical boxes set in exterior walls can leak air. Try placing foam gaskets behind outlet covers for a quick fix.
• Fireplace Dampers: A damper that doesn’t close tightly allows warm air to escape and cold air to settle into the living space.

Temporary Fixes You Can Try Today

Once you’ve found the likely sources, you can make simple improvements before scheduling professional repairs:

• Replace or reapply caulk around exterior window frames.
• Install new weatherstripping on windows and doors.
• Add door sweeps to close gaps under exterior doors.
• Seal electrical outlets with foam gaskets or outlet insulators.

These steps won’t fix structural issues or damaged frames, but they can noticeably improve comfort while reducing energy waste if sealing is the issue.

Keep Your DFW Home Warm With Our Top-Notch Window Services

If drafts persist after your DIY fixes or if you find cracked frames, fogged panes, or broken seals, it’s time to call in a window replacement specialist. Call Window Zone today at 469.557.6333 to schedule a free replacement quote and stay warm and comfortable all season long.