Window Leaking — Water Entry Around Frames
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Common Water Issue in BC

Window Leaking — Water Entry Around Frames

Leaking windows are a common building envelope issue in BC homes and strata buildings. Failed sealants and improper installation are the primary causes.

Possible Causes

  • Failed exterior caulking between window frame and wall opening
  • Damaged or missing window flashing at head, sill, or jambs
  • Failed window glazing seal allowing condensation between panes
  • Clogged or missing window weep holes preventing proper drainage
  • Improper window installation with inadequate waterproofing

Recommended Steps

  • 1Check if leak appears during wind-driven rain specifically
  • 2Inspect exterior caulking condition around entire window frame
  • 3Check if water appears at top, sides, or bottom of window to isolate source
  • 4Ensure weep holes at bottom of window frame are not painted over or clogged
  • 5Call professional building envelope inspection for comprehensive window assessment

Need Professional Help?

Don't let a small leak become a big problem. Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for expert diagnosis.