Typical signs
- Droppings, odour, noises, gnawed material, frass or winged insects.
Where it is often found
- Basements, attics, crawlspaces, garages, under sinks and around penetrations.
What it can mean
- Unsealed entries, moisture, available food or damp wood.
What to check next
- Photograph without dispersing contaminants.
- Trace pathways, water sources and exterior openings.
Reasonable immediate actions
- Secure food, avoid dry sweeping and limit access to contaminated areas.
When to stop and call a professional
- Large infestation, structural damage, dangerous wasps/animals or extensive contamination.
Prevention
- Compatible sealing, cleanliness, drainage, cleared vegetation and periodic inspection.