Silverfish are becoming increasingly common across the UK, with August and the latter summer months representing peak silverfish season. These ancient insects flourish in humidity levels of between 55-70%, which perfectly describes Britain's damp climate and moisture-laden corners.
Searches for how to get rid of silverfish have already risen by 15% in the last quarter, as homeowners seek ways to tackle these pests before they permanently settle into their homes. While silverfish pose no danger to humans, they can become an unwelcome nuisance, causing damage to household belongings including books, wallpaper and fabrics, while also leaving behind marks from their droppings and shed skin.
Simple task after bathing
Sam Davies, Director at Age Care Bathrooms, has shared his top tips on how to keep silverfish at bay. By carrying out simple tasks and making minor adjustments, homeowners can reduce moisture and help deter silverfish.
First, it's essential to establish whether you are genuinely dealing with a silverfish infestation. Common warning signs include repeated silverfish sightings in dark and damp areas, tiny black marks or droppings, damage to paper products, wallpaper or fabrics, and small scales left behind from moulting.
Davies says: "Silverfish are often spotted in bathrooms because they are attracted to warm, humid environments. However, seeing one silverfish does not always mean you have an infestation, so homeowners should look for repeated sightings or signs of activity such as droppings and damage."
One straightforward task is of the utmost importance when it comes to tackling silverfish: drying your shower and bath after use. Davies explains: "Silverfish thrive in damp environments, which means bathrooms can provide the perfect conditions for them to hide and breed. Taking a few seconds to wipe down wet surfaces, especially around shower trays, baths and sinks, is a simple way to keep your bathroom drier between uses."
Other effective measures
Regularly washing and drying your bath mats is another underappreciated yet highly effective measure. Davies says: "Bath mats can quickly become a warm, sheltered space for silverfish to hide, especially when they are left damp. Hanging your bath mat over the bath or shower rail after use can help it dry faster and remove a potential hiding spot for pests."
The expert also suggests leaving your extractor fan operating after showering, pointing out that many householders turn theirs off the instant they leave the bathroom, despite humidity remaining in the air for much longer. He advises: "Keeping your fan running for around 15 to 20 minutes after showering can help remove lingering moisture. It is also important to clean your extractor fan every few months and check it is working effectively, as dust and dirt build-up can reduce how efficiently it removes damp air."
Improving airflow after a shower is another aspect to consider. Davies explains: "Opening a window or leaving the bathroom door open after showering can help improve ventilation and prevent moisture from becoming trapped in the room. This is particularly important in bathrooms without strong extraction."
Leaks, gaps and storage
Checking for hidden leaks is also of critical importance. Davies says: "Silverfish are often attracted to areas with consistent moisture, even if the damp is not immediately obvious. A small leak under a sink, behind a toilet or around pipework can create the perfect hiding spot."
Another method is to seal gaps around pipes and fittings. Silverfish can squeeze through surprisingly small openings, making cracks around skirting boards, pipework and worn sealant easy entry points. Davies adds: "To prevent this, replace any cracked or damaged silicone around baths and showers to keep water from seeping into hidden areas."
Davies also recommends against the storage of cardboard and paper products in bathrooms. He explains: "Silverfish feed on starches found in materials such as paper, cardboard and some adhesives, so keeping spare toilet rolls or packaging in the bathroom can make the space more attractive." Where possible, store these items in airtight containers and remove any unnecessary clutter from cupboards.
