Flies are a vital part of our ecosystem, as they are scavengers that consume dead and decaying matter. While flies are essential, there’s nothing more annoying than hearing their buzzing wings flying around your head. Typically, flies live outdoors; however, flies can certainly make their way into your house. Though it isn’t unusual to see flies zooming or crawling around your house every once in a while, if you’re suddenly bombarded with flies, it can be a cause for concern. A fly infestation can be seriously problematic, as they can carry disease, which can then spread throughout your home and potentially infect you and your loved ones.

Why do I Suddenly Have So Many Flies in My House?

If your house is overrun with flies, you’re probably wondering why. What is attracting the flies? There can be several reasons why you have many flies in your home. Below, we’ll cover some of the most common reasons why flies enter your home and offer a few solutions that you can use to get rid of the flies.

Decaying Matter

Decaying matter is one of the most common causes of a fly infestation in and around your home. As mentioned previously, flies are scavengers and eat dead and dying matter. When flies find decaying matter, they move in to consume them. Not only that, but adult flies lay their eggs in the matter as well – and they lay a whole lot of them.

Needless to say, when those eggs hatch, well, you’ll be inundated with flies. Therefore, if you find that you suddenly have a lot of flies in your house, chances are there’s decaying matter somewhere. No matter how clean you keep your house, you probably have something rotting somewhere. For example, garbage cans and garbage disposals. These spots are prime breeding sites for flies.


The eggs that flies lay need specific conditions in order to survive. If those conditions are met, the eggs will grow into larva, and the larva will grow into adult flies, and the life cycle continues. As mentioned earlier, flies lay their eggs in dead and decaying matter. However, in order to survive, they also need warmth. Typically, temperatures of 75 degrees and higher are ideal for flies.

If your home has been overrun with flies, look in places of your house that offer temperatures that are favorable for fly eggs. Bathrooms, laundry rooms, and areas around appliances (hot water heaters, dishwashers, fridges, etc.) are a few examples of some of the spots that can offer ideal temperatures for fly growth.

Long Lifespan and Fast Breeding

Believe it or not, the lifespan of a fly is a lot longer than you probably realize. The average fly lives between 15 to 30 days. They also breed very quickly. How does their long lifespan contribute to the sudden onslaught of flies in your house?

If you see a few or even just one fly buzzing around your house and you don’t swat it, it could lay eggs. Then, those eggs will hatch, and become adult flies. Those adults will lay more eggs, and before you know it, the situation will worsen, and a cluster of flies will appear. It is important to know that all it takes is a single fly to cause a fly infestation.

Helpful Tips to Combat Flies

What can you do to combat the fly problem around your home? Take a look at the following tips.

  • Keep things clean! Not only should the trash be taken out frequently, but the trash cans should be cleaned out as well. Trash is one of the main sources of food for flies.
  • Reduce the temperature in areas where the flies seem to be originating.
  • Inspect existing screens, install new screens, and don’t leave doors and windows open for a long time.
  • Act fast! If you see even just one fly, be sure to take care of it immediately.

Types of Flies

  • Housefly
  • House flies
  • Horse-fly
  • Blow flies
  • Common fruit fly
  • Cluster fly
  • Psychodidae
  • Black fly
  • Musca

Are you in need of fly control services in Omaha or surrounding areas? Contact ABC Termite and Pest Control for more information about you can get your fly problem under control.

Additional Reading: How to Deal with a Housefly Infestation

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