Woodworm and Death Watch Beetle

Active woodworm causes considerable damage to any timber structure
throughout its life cycle

The Average Life cycle


  • Woodworm insects have a two to five year life cycle.
  • Within this time the larvae will start to hatch and eat its way through any available timber structure.
  • This is repeated up and down the length of timber causing damage and weakness to the structure.
  • It is at this stage in the life cycle that the frass, or wood dust can be observed and quite often noticed by surveyors or the trained eye.
  • The next stage the larvae will have pupated into an adult beetle and will mate to lay more eggs and the cycle repeats itself.

Some Photographs

Evidence of Woodworm
Damage by woodworm
Severe woodworm damage
Active woodworm in roof timber