GETTA Help

Cracked double-glazed window: what to do

Cracked glazing can lose strength and may fail further with temperature or impact, so protect the area and arrange assessment.

Likely causes

  • Impact, edge damage, frame pressure and thermal stress can crack a pane.

Safe checks you can make

  • Keep people and pets away and photograph the crack without pressing the glass.
  • Do not tape across unstable fragments if approaching them is unsafe.

When to stop and get urgent help

  • Use emergency glazing help for loose shards, a shattered pane or loss of property security.

How a glazing specialist can help

  • A glazier can make the opening safe and replace the correctly specified sealed unit or safety glass.