Drafty windows can be addressed by sealing air leaks, adding insulation, or considering window upgrades to improve comfort and reduce energy waste.
Stubborn cold spots near windows often stem from air leaks around the frame or sash, poor glazing, or insufficient insulation in the surrounding wall. Start by inspecting for obvious gaps and drafts, then consider temporary fixes like weatherstripping or window film. For more persistent issues, professional assessments can identify specific problems and recommend targeted solutions, ranging from minor repairs to full window replacements.
The effectiveness of any solution can vary based on the specific cause of the draft and the construction of your home.
What is insulating window film and how does it work?
Insulating window film is a thin, transparent plastic film that adheres to the inside of your window glass. It works by creating a micro-thin layer of trapped air between the film and the glass, which acts as an insulator. This reduces the amount of heat that transfers through the window, keeping your home warmer in winter and cooler in summer. It's often applied using a hairdryer to shrink it taut for a clear finish. While it doesn't stop drafts from leaks, it improves the thermal performance of the glass itself.