My windows are drafty – are my windows leaking?

If your windows are leaking, we can provide a quote to repair or replace them. However, this sensation can sometimes be explained by a process called a convection current. When there is a large temperature difference in an enclosed space, convection currents naturally occur. Warm air, being lighter, rises and moves along the upper part of the room toward the window. When it reaches the cooler surface of the window or door, the air loses heat and becomes cooler. Cooler air is denser, so it sinks down along the cold surface and then moves back toward the warmer area of the room. This continuous cycle of rising warm air and sinking cool air continues until the temperature in the room reaches equilibrium. As a result, someone standing near the window may feel air moving downward from above the window, across the floor, and away from it. This can feel like a draft entering through the window, even if there is no actual leak. This movement of air is known as a convection current.