How To Reseal A Window !new! < 100% TOP >

1. Introduction Windows lose their seal over time due to UV exposure, temperature fluctuations, and material shrinkage. A failed seal leads to drafts, higher energy bills, water damage, and noise infiltration. Resealing a window restores its airtight and watertight barrier. This report focuses on DIY resealing —not full glass unit replacement (which addresses failed insulating glass seals, or “foggy windows”). 2. Diagnosing the Problem Before resealing, determine where the seal failed: