Somerset West spreads out below the Helderberg mountain, from older central suburbs to big security estates and wine farms. It's a wide area, and the pests change a lot between the town centre, the estates and the farmland edges.
Fishmoths in Somerset West cupboards and garages
Fishmoths are common in Somerset West, especially in the older homes near the town centre and in garages and storerooms full of cardboard boxes. The wet Helderberg winters keep built-in cupboards and bookshelves damp, and they feed on paper, book bindings, photos, wallpaper paste and stored clothes. Clothes moths can also damage woollen rugs and jerseys.
We treat cupboards, skirting boards, cracks and storage areas with a residual product and dust, and we point out damp spots that keep them coming back. Moving stored papers into plastic boxes with lids helps a lot.
The Helderberg mountain and Helderberg Nature Reserve rise behind the town, with vineyards and farmland around it. The Lourens River runs through the area to False Bay. Winters are wet and the South-Easter blows strongly in summer, which pushes insects and dust around.
Tell-tale signs
Tick every sign you have noticed. It takes ten seconds.
Why it matters: Fishmoths do not bite or spread disease, but they cause slow, steady damage. They eat the glue in book bindings and wallpaper, the starch in fabrics and paper, and the surface of photographs and documents. For offices, schools, libraries and archives, they can damage records that cannot be replaced. Their presence is also a strong clue to damp or poor ventilation that may be causing other problems in the building.
Worth knowing
Many people think fishmoths only eat paper. They also go after the glue in wallpaper and book bindings, starch in fabrics, and even dried food crumbs and dead insects in cupboards.
Fishmoths are harmless to children and pets, which means you can take your time and choose a gentle, targeted treatment rather than anything heavy-handed.
How the treatment works
Fishmoths often live in roof spaces, wall voids and behind cornices, so a fine insecticidal dust blown into the ceiling void is one of our most effective tools. Inside, we apply a targeted residual treatment into cracks, cupboard corners, skirting gaps and behind bookshelves rather than spraying open surfaces. Fishmoths are long-lived and lay eggs in hidden cracks, so treatments that keep working for a while are more useful than a quick knockdown. We pair the treatment with advice on damp, ventilation and storage, because changing the conditions is what stops them coming back.
Want the full step-by-step? See how our fishmoth control service works.
Prevention that actually works
- Store books, documents and photographs in sealed plastic boxes, not cardboard, especially in garages and storerooms.
- Vacuum regularly inside cupboards, along skirting boards and behind furniture to remove eggs and food sources.
- Improve ventilation in bathrooms and laundries with an extractor fan or by keeping a window open after showers.
- Avoid stacking old newspapers, magazines and cardboard boxes in cupboards for long periods.
- Fix leaks under basins, around geysers and in the roof, since fishmoths need moisture.
How much will it cost?
The price depends on the size of the property, how many rooms and cupboards are affected, and whether the roof space needs to be treated. Easy access to the ceiling void keeps the job simpler, while a home with lots of built-in cupboards and shelves takes more time. Offices, archives and storerooms with large amounts of paper are quoted separately, and every quote is free.
Fishmoths are active all year because they live indoors, but Cape Town's damp winters make them more noticeable as moisture rises in roofs, walls and cupboards. Grey silverfish in the roof space may become more visible in summer when the ceiling heats up and pushes them down into the rooms below.
Frequently asked questions
Why are fishmoths falling from my ceiling?
That usually means there is a population in the roof space. Treating the ceiling void with a dust is the most effective way to deal with it.
How long does a fishmoth treatment last?
Our treatments carry a minimum 3-month guarantee. Fixing damp and changing storage habits makes the result last much longer.
Do fishmoths mean I have damp?
Often, yes. Common silverfish in particular need high humidity, so seeing them regularly in one room is a good reason to check for leaks or poor ventilation.
Why are there fishmoths in my Somerset West garage?
Cardboard boxes and stored paper give them food, and the winter damp keeps them going. Treatment and sealed storage stop them.
Are fishmoths and silverfish the same thing?
Yes. Fishmoth is the common South African name for silverfish, and it covers a few related species, including the grey silverfish common in Cape Town.
Do fishmoths bite?
No, they do not bite people or pets and do not carry disease. The problem is the damage they do to paper, books, photographs and fabrics.
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