Why am I suddenly seeing silverfish in my house?
Olivia Hensley
Updated on February 28, 2026
Silverfish are a warning sign that your home has developed entry points, more specifically, entry points that may have been caused by water damage. When rain water gets into places it shouldn't, it can cause mold, mildew, fungi, algae, and other things to grow.
Does seeing one silverfish mean an infestation?
A homeowner who sees a silverfish in one or two places in the home does not necessarily have an infestation. However, a homeowner who sees silverfish regularly likely has a problem.How can I get rid of silverfish?
6 ways to get rid of silverfish
- Put a starchy food or substance in a glass container and wrap the outside with tape. ...
- Roll up newspaper. ...
- Put out sticky traps. ...
- Put out small bits of silverfish poison. ...
- Use cedar or cedar oil. ...
- Spread dried bay leaves throughout your home.
Is seeing silverfish normal?
Is it bad to have silverfish? Luckily, silverfish are mostly harmless, unless you're an avid reader. "Silverfish do not carry any diseases relevant to people. They are herbivores and when they are found inside, they usually feed on starchy items, such as old book bindings, paper products and other old moldy items.What is the fastest way to get rid of silverfish?
Use borax. Borax is an effective way to kill silverfish. For best results, purchase borax at your local home goods store, and spread a thin layer anywhere you've noticed silverfish. It's particularly appropriate for use on the back side of cabinets, along baseboards, in closets, and beneath appliances.How Did I Get Silverfish? | Pest Support
Do silverfish go in beds?
Finding Silverfish in BedsAlthough they prefer places like bathrooms and closets, it is possible to find silverfish bugs in beds. These insects are about half an inch in length with silver teardrop-shaped bodies and long antennae. While they're more annoying than harmful, these pests can damage bedding.
What naturally kills silverfish?
Home remedies to get rid of silverfish naturally
- Boric acid. Boric acid is known to kill insects and bugs by starving them. ...
- Diatomaceous Earth. Diatomaceous Earth is mainly used to kill the silverfishes by making them thirst. ...
- Cedar shavings. ...
- Cinnamon. ...
- Citrus fruits. ...
- Naphthalene balls. ...
- Cucumber peels. ...
- Cloves.
Do silverfish have nests?
Inside homes, silverfish create nests in damp areas where temperatures are cooler, and they are usually found residing in basements. However, they can also be found nesting in cabinets and underneath sinks in attics, kitchens, crawl spaces, laundry rooms, and bathrooms.What attracts silver fish?
Silverfish prefer warm and humid places such as kitchens and bathrooms. They are especially attracted to damp clothing and paper. Silverfish feed on carbohydrates, especially starch and sugars.How do you spot a silverfish nest?
Signs of Infestation
- Small, uneven holes in paper or fabric.
- Molted skin that the silverfish shed.
- Tiny black spots of their excrement.
- Yellowish stains.
- Nests outdoors in bark or other wood, rocks, or construction material in warm weather.
- Indoor nests in damp, dark areas.
Does having silverfish mean your dirty?
You might be happy to learn that silverfish are not necessarily a sign of a dirty house. However, they can be a sign of underlying problems. Silverfish love warm and damp areas, and this is generally not what you want in your home.Should I worry about one silverfish?
If you see one silverfish, there is a good chance there are hundreds living in your walls. A single female can lay 100 eggs in her lifetime and it only take 3 months from egg to adult. It doesn't take long for silverfish populations to get out of hand.What smell do silverfish hate?
Silverfish hate the smell of citrus, cinnamon and lavender. If you are looking to repel them naturally, a great idea is to use essential oils to clean your home or as a home fragrance (such as candles and diffusers) to keep them away.Where do silverfish hide?
Silverfish prefer areas of room temperature (70-85 degrees F/21-29 degrees C). They are nocturnal and prefer to hide or rest in tight cracks or crevices during the day. Silverfish can be found almost anywhere in a house including living rooms, bedrooms, bathrooms, attics, basements, garages and shake roofs.Where are silverfish coming from?
Silverfish can come in from the outside around your foundation or they can be brought in from boxes or other stored products. They will hang out inside wall voids but are very commonly found in bathrooms and attics when they come out to forage for food and water.What time of year do silverfish come out?
Most silverfish infestations begin outside. In Southern California's winter when the weather is wetter and more humid, it may as well be a silverfish paradise. They find their way inside as they look for similar conditions; the controlled climate and variety of dark, uninhabited spots help them sustain populations.What's the lifespan of a silverfish?
The average female silverfish will lay up to 100 eggs during her life. Silverfish have a lifespan ranging from two to eight years.Can silverfish climb walls?
They're Poor ClimbersSome types of insects can expertly climb smooth vertical surfaces, like walls. Silverfish do not have this ability. If they fall into a sink, bathtub, or similar place, they can't get out. Since these pests can be found trapped in sinks or tubs, some people think silverfish climb out of drains.