Updated: June 1, 2023

Silverfish are small, wingless insects that are commonly found in damp and humid environments. They are known to be a nuisance because they can cause damage to books, paper, fabrics, and other household items. If you have ever had a silverfish infestation in your home, then you know how difficult it can be to get rid of them. In this article, we will discuss some effective ways to prevent a silverfish infestation.

Keep Your Home Clean and Dry

The first and most important step in preventing a silverfish infestation is to keep your home clean and dry. Silverfish thrive in damp and humid environments, so it is important to control the humidity levels in your home. Use a dehumidifier to maintain a humidity level of around 50 percent. Also, make sure to fix any leaky pipes or faucets, and dry out any damp areas in your home.

Regular cleaning is also important in preventing a silverfish infestation. Vacuum your carpets and floors regularly, and dust your furniture and shelves. Pay special attention to areas where you store paper, books, and fabrics, as these are the favorite hiding spots of silverfish.

Seal Cracks and Holes

Silverfish can enter your home through small cracks and openings in walls, floors, and ceilings. To prevent them from entering your home, seal any cracks or holes with caulk or sealant. Pay special attention to areas around pipes, vents, and electrical outlets. You can also use weather stripping on doors and windows to prevent silverfish from entering your home.

Store Food Properly

Silverfish are attracted to starchy foods like flour, cereal, pasta, and rice. To prevent them from infesting your pantry, store these foods in airtight containers. This will not only prevent silverfish from getting into your food but will also keep the food fresh for longer.

Use Natural Repellents

There are several natural repellents that can help prevent a silverfish infestation. One of the most effective is diatomaceous earth, which is a fine powder made from fossilized diatoms. Sprinkle this powder around areas where silverfish are likely to hide, such as in cracks and crevices, behind baseboards, and in dark corners.

Another natural repellent is cedar oil, which can be sprayed on shelves, drawers, and other areas where you store paper and fabrics. Cedar oil has a strong scent that repels silverfish and other pests.

Call a Professional Exterminator

If you have tried all of the above methods and still have a silverfish infestation, it may be time to call a professional exterminator. A professional will be able to identify the source of the infestation and use the appropriate treatment to get rid of the silverfish.


Preventing a silverfish infestation requires a combination of regular cleaning, proper storage of food and household items, sealing cracks and holes, using natural repellents, and calling a professional exterminator if necessary. By following these steps, you can keep your home free of silverfish and other pests.