How to Spot a Failing Window Before Water Damages Your Walls

## The Hidden Threat of Window Water Intrusion When windows fail, water damage rarely presents as a dramatic flood. Instead, water seeps into wall cavities drop by drop during rainstorms, soaking fiberglass insulation and rotting structural framing studs behind your drywall. ### The 7 Warning Signs of Failing Windows: 1. **Peeling or Bubbling Paint on Interior Sills:** Moisture is saturating the wood grain beneath the paint film. 2. **Spongy or Soft Window Sills:** Test with a pencil eraser or blunt screwdriver. Any softness indicates active rot. 3. **Discolored Carpet or Warped Hardwood:** Moisture running down behind the baseboard beneath the window. 4. **Musty Odors in Bedrooms:** Stagnant moisture fostering mold growth inside the wall cavity insulation. 5. **Difficulty Operating Sashes:** Moisture swelling causes wood sashes to bind and stick in their tracks. 6. **Cracked Exterior Stucco or Siding Gaps:** Failed caulking allowing water behind the exterior drainage plane. 7. **Drafty Cold Spots in Winter:** Deteriorated weatherstripping and missing rough opening insulation. Catch water intrusion before it escalates. Contact ServiceFind Windows Pro for a free thermal imaging inspection and **Fair Quote**.