Silverfish turn up in Sydney bathrooms, laundries, wardrobes and anywhere paper, glue or natural fabric sits in still, slightly damp air. They are easy to miss until books, wallpaper or clothing show damage.
Extreme Pest Control NSW treats silverfish infestations across Greater Sydney by targeting harbourage and the moisture that supports them.
What a silverfish problem looks like
Silverfish are carrot-shaped, silvery insects that move quickly when lights go on. They hide in cracks, behind skirting, in stacked paper and in bathroom cupboards. You may never see them in the middle of the day.
They feed on starches and proteins: book bindings, wallpaper paste, photos, cotton and linen, and spilled crumbs in unused rooms. Roof voids and subfloors can hold populations that keep topping up the living areas.
A dehumidifier or extractor fan will not replace treatment if a population is already established, but dry rooms make reinfestation less likely.
Common signs
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Live insects
Quick, silver insects in the bath, on bathroom floors or in wardrobes at night.
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Grazing damage
Irregular yellowing or scraping on paper, books and wallpaper.
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Fabric damage
Holes or thinning on stored cotton, linen or rayon, sometimes confused with moths.
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Droppings
Tiny dark pellets in drawers and along skirting in unused rooms.
Quiet damage to belongings
Silverfish can ruin stored documents, books and sentimental paper in a spare room that nobody checks.
Wardrobe infestations damage natural fabrics over a season rather than overnight, so the first sign is often a favourite item already marked.
Moisture problems that support silverfish can also support mould and other pests. It is worth fixing leaks rather than only spraying.
How silverfish treatment works
We treat cracks, voids, bathroom and wardrobe harbourage, and other areas where activity is found. Stored goods may need to be lifted so treatment reaches skirting and cupboard edges.
Reducing humidity, fixing leaks, and not storing paper on cold exterior walls helps the result last. We will point out obvious moisture sources.
Silverfish can take time to decline because they hide well. A follow-up is used if activity continues in stored-goods rooms.
Silverfish control with Extreme Pest Control NSW
Harbourage treatment instead of a token spray of the hallway.
Local technicians across Greater Sydney.
Honest advice about moisture and storage, which is what keeps silverfish from returning.
Areas serviced
Silverfish Control is available across Greater Sydney. We travel to the property rather than operating a shopfront in every suburb.
See all service areas.
Related services
FAQs
Are silverfish dangerous? +
They are a damage and nuisance pest, not a typical medical emergency. The issue is belongings and the moisture that supports them.
Why are they in the bathroom? +
Bathrooms offer humidity and cracks around fittings. Steam without ventilation makes the room more attractive.
Will one treatment be enough? +
Many homes settle after a thorough treatment plus drier storage. Heavy stored-paper rooms or roof void activity may need another visit.