Why are there so many Flies in my House all of a Sudden

why are there so many flies in my house all of a sudden

Many of us love summer. After all, why not? We can wear anything we like, go to the beach, get our tan, and so much more. But one thing that all of us despise is flies and you may wonder to ask why are there so many flies in my house all of a sudden. They are a menace as they cause unbearable distress and even infections. You might feel that you are scratching your body more than usual in summer. One reason for it is the flies. They carry germs and other bacteria, which are harmful to us and even our pets. Let us discuss this in more detail.

How are Flies Harmful?

Flies do not sting like bees or wasps. Yet, they are more harmful, in our opinion. Why? Let us look at the reasons.


It is usually harmless but can lead to severe cases of food poisoning. E.coli is responsible for countless product recalls over the years.

Food Poisoning

As flies continuously interact with filth and trash, they carry germs. If they find their way into your food or drink, you will end up with food poisoning.


The link between typhoid and houseflies is well-documented. Therefore, it is another reason to get rid of them promptly.


The harmful effects do not end with food poisoning, as you can end up with dysentery. It is severe diarrhea with blood. Trust us when we say that you do not want to have dysentery.

They carry many other diseases. Therefore, before dismissing flies as harmful, think again and focus on ways to get rid of them.

Why are there so many flies in my house all of a sudden – Causes to know

Several things can invite flies into the house. They include:

1. Infestation

If you see many flies in the house, you are facing an infestation that might be inside or outside the home. Flies require warm places for hatching. Therefore, have a look in your garage, attic, or garden for the infestation.

2. Meat

It is common to throw out unwanted pieces of meat when cleaning it. Unfortunately, flies love meat, especially rotting meat. Therefore, if you throw out the meat improperly, you are responsible for the flies.

3. Food

It is not just meat that attracts the flies. In fact, any food will attract flies in large numbers.

4. Sugary Substances

Apart from meat and food, any uncovered sugary substance will result in flies. If you think that is not the case, spill soda on the floor. After a while, you will find ants and flies around the soda, making your life miserable.

5. Seasonal influx

Flies are more prevalent during warmer months, especially if you live in an area with a high fly population. During favorable conditions, they multiply rapidly, increasing their numbers suddenly.

6. Open doors or windows

If there is food odor, garbage, or other organic matter in your home, flies can enter through open doors or windows. Check for any openings or gaps that may be allowing flies to enter.

7. Breeding sites

Flies lay their eggs in decaying organic matter, such as rotting fruits, vegetables, or animal feces. An increase in fly populations can result from breeding sites inside or outside your home.

Countless other things attract flies, including pet feces. But it is impossible to list everything. Instead, let us focus on ridding your house of flies.

How to Get Rid of Flies?

There are several ways to get rid of house flies, and we will discuss the most effective ones here.

1. Sanitize the Home

Ensure that there is no meat or any food left outside the bin or lying around the home. Take out the garbage regularly. Other than this, ensure that there are no sugary substances left out in the open. If you or your toddler accidentally spill any sugary drink, clean it right away.

2. Ultrasonic Pest Repellents

You can find several top-quality repellents that do an effective job of keeping away pests like flies. These repellents prevent other pests like mice, rodents, and squirrels from finding their way into the house.

3. Fly Swatter

They are inexpensive and get the job done. All you need is a good aim. Interestingly, if you kill a few, others will fly away.

4. Clean up after the Pets

If you have a pet dog or cat, clean up their faces. If you avoid doing so, the flies will come buzzing in, making your life miserable.

5. Seal entry points

Inspect doors, windows, and other potential entry points for gaps or openings. Seal or repair any areas where flies could be entering your house.

6. Use fly traps or sticky tapes

Whenever flies are concentrated in an area, set up fly traps or use sticky tape. These can help capture and control their population.


In conclusion, a sudden influx of flies in your house can be attributed to various factors, including seasonal changes, open doors or windows, food sources, breeding sites, or plumbing or sewage issues. The fly population in your home can be controlled and reduced effectively if you identify its specific causes and implement appropriate measures such as proper sanitation, sealing entry points, removing attractants, and addressing moisture or plumbing issues. If the problem persists, seeking professional assistance may provide further guidance and solutions. Regaining a fly-free environment will contribute to a cleaner, more comfortable living space for you and your family.

Humza Ahmad Barlas
Humza Ahmad Barlas is a dynamic freelance writer and a passionate expert in home improvement, contributing valuable content to SpadoneHome.com for over a year. Specializing in home decoration, cleaning tips, and renovation strategies, his articles offer practical and appealing solutions for homeowners looking to enhance their living spaces. With a strong foundation in digital media, Humza excels in creating engaging narratives and insightful content. His expertise in content strategy and digital marketing shines through in every piece, making him a trusted and authoritative voice for readers seeking reliable home improvement advice.