Can You Reseal Windows [exclusive] Link

The rubber gaskets on the movable parts of your window (sash) eventually compress and lose their airtight grip.

You cannot "reseal" the glass to fix fogging effectively. You must replace the glass unit.

Yes, windows can be resealed. Resealing is a common, cost-effective maintenance task that restores a window’s energy efficiency, prevents drafts, and stops moisture ingress. The process varies depending on window type (e.g., double-glazed sealed units, casement, sliding, or sash windows).

If your window is structurally sound but letting cold air in, the issue is usually the seal between the window frame and the house, or between the sash and the frame. This is a DIY-friendly fix.