Struggling to Get Rid of Silverfish?
Getting Rid of Silverfish: Signs, Causes & Solutions
If you’ve spotted small, silvery, fish-shaped insects darting across your bathroom floor or found tiny holes chewed through old books and wallpaper, you’re dealing with silverfish. Knowing how to get rid of silverfish starts with understanding why they’re in your home in the first place, because these pests thrive on moisture and will keep coming back until the underlying conditions change. This guide covers what attracts silverfish to Southland homes, the damage they can cause, and the most effective ways to get rid of silverfish for good.
What Are Silverfish and Why Do You Have Them?
Silverfish are small, wingless insects with a distinctive silvery, teardrop-shaped body and long antennae. They’re most active at night and prefer dark, damp, undisturbed spaces, which is exactly why they’re so common in Southland’s older, cooler homes.
Silverfish feed on starches and sugars, which puts books, wallpaper paste, cardboard, natural fibres, and even some food packaging on the menu. They don’t bite and they don’t spread disease, but a growing population can cause real damage to paper goods, clothing, and stored belongings over time.
The main reason people struggle to get rid of silverfish is that they only treat the insects they see, without addressing the damp, dark conditions that attracted them in the first place.
Where Silverfish Hide in Your Home
Before you can get rid of silverfish, it helps to know where they’re likely to be hiding. Bathrooms and laundries are common hotspots because of the consistent moisture. Basements, subfloors, and roof cavities offer the dark, undisturbed environment silverfish prefer. Wardrobes and linen cupboards, particularly ones with limited airflow, are another frequent hiding spot. Bookshelves, storage boxes, and stacks of paper or cardboard in garages and spare rooms round out the usual suspects.
If you’re finding silverfish in more than one of these areas, it’s a sign the infestation has had time to establish itself around the property rather than being confined to a single room.
Signs of a Silverfish Infestation
Beyond spotting the insects themselves, look for small, irregular holes in paper, wallpaper, or cardboard. Yellowish stains or tiny black droppings resembling pepper flakes on shelves or in cupboards are another giveaway. Shed skins, which look like small translucent outlines of the insect, are also common in areas with an established population.
How to Get Rid of Silverfish Naturally
For smaller, early-stage problems, a few natural steps can help get rid of silverfish before they spread further.
Reduce humidity throughout the house, particularly in bathrooms, laundries, and subfloor spaces. A dehumidifier or simply improving ventilation makes these areas far less appealing.
Remove clutter such as old newspapers, cardboard boxes, and unused paper stacks, since these are both a food source and a hiding spot.
Vacuum regularly in cracks, skirting boards, and cupboard corners to remove eggs and juvenile silverfish before they mature.
Store books, documents, and out-of-season clothing in sealed plastic containers rather than cardboard boxes, which silverfish can easily chew through.
Seal cracks and gaps around skirting boards, pipes, and window frames to cut off the small entry points silverfish use to move between rooms and wall cavities.
How to Get Rid of Silverfish for Good
Natural methods work well for minor problems, but an established infestation usually needs a more thorough approach. Improving ventilation in subfloors and roof cavities addresses the root cause rather than just the symptoms, since these are often the source areas driving activity throughout the house. Fixing any leaks or damp patches, including around pipes, in bathrooms, and in roof spaces, removes the moisture silverfish depend on to survive and breed. A professional treatment targets nesting areas directly, reaching wall cavities, subfloors, and roof spaces that are difficult to treat with store-bought products alone. Regular monitoring afterwards helps confirm the problem is fully resolved and catches any new activity early, before it has a chance to re-establish.
If you’ve tried the natural steps above and you’re still seeing silverfish regularly, it’s a strong sign the infestation is more established than it looks and that a targeted treatment is the faster path to actually getting rid of silverfish rather than just knocking numbers back temporarily.
When to Call a Professional
DIY methods are worth trying first, but if silverfish keep reappearing despite your efforts, or if you’re noticing damage to books, documents, or clothing, it’s time to bring in a professional. Silverfish populations can be harder to fully eliminate than they first appear, since a single sighting often means many more are hiding undetected in wall cavities or subfloors.
At Nexus Property Services, our Southland pest control team knows exactly where silverfish hide in local homes and how to treat the moisture and access issues that keep bringing them back. If you’re ready to get rid of silverfish properly rather than dealing with the same problem every few months, get in touch and we’ll sort it.