Why do Mice Come in the House in the Summer, 6 Best Tips

As the summer sun paints the world in vibrant hues, nature comes alive with an array of activities. Among these bustling critters, rats and mice are no exception. While we relish the warmth and long days, these small, adaptable creatures find their way into our homes.

But why this seasonal migration? It’s a quest for abundance! With gardens in full bloom and nature’s pantry overflowing, mice seize the opportunity for a gourmet feast. Moreover, summer signifies more than just food, it’s a time for expansion and new beginnings.

Hidden in the nooks and crannies of our abodes, they craft cozy nests to shelter their burgeoning families. So, as the sun dances in the sky, remember that our homes offer not only sustenance but also a haven for these industrious summer sojourners.

But why do mice embark on this seasonal journey indoors? Why do mice come in the house in the summer? Let’s embark on a fascinating exploration of this phenomenon.

1. Feast Amid Plenty

The summer season brings forth an abundant spread of nature’s bounty. Fields teem with ripe crops, gardens flourish, and insects abound. For mice, this is a feast not to be missed. Yet, this veritable buffet can inadvertently draw them towards human habitats where stored provisions promise an easy meal.

2. Safe Havens for New Beginnings

Summer heralds a time of renewal and expansion for mouse families. With favorable conditions for reproduction, mice are on the lookout for secure, secluded locations to build their nests. In the intricate architecture of our homes, they find the ideal haven, shielded from the elements and predators alike.

3. The Pitter-Patter of Little Feet

Mice, renowned for their prolific breeding habits, embrace summer’s warmth with enthusiasm. A single female mouse can bring forth multiple litters, each bearing several offspring. This surge in population fuels their exploration of new territories, leading them to our doorsteps.

4. Escaping the Searing Heat

While we savor the summer sun, it can be a bit too much for our rodent neighbors. Houses offer a retreat from the scorching temperatures outdoors, providing a comfortable environment for mice to thrive in. The cooler interiors become a sanctuary from the relentless blaze of the sun.

5. A Respite from the Watchful Eye

In the wild, mice are stalked by a host of predators ranging from birds of prey to snakes. Seeking refuge within our homes grants them respite from these constant threats. The relative safety offered by human dwellings becomes an attractive proposition.

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6 Best Home Remedies to Get rid Of Mice

1. If you are having problems with mice, check and clean all the food sources around your home. If there are any open cans of food or garbage containers near your house, it is important to remove them. This may be a good idea if you have neighbors who do not like to see mice running around their homes either.

2. Clean up all the corners, and crevices where mice can hide, to prevent them from entering your house. or business. You can use sticky traps for this purpose. In that way you will be able to catch these rodents without using any chemicals at all.

3. Mice love dark spaces so, try to make sure all lights are on at night in order to prevent them from coming inside your house or office building. They come through windows, and doors which they might have found during the day time hours, when light is still available outside and no one is home. This is also one of the best home remedies on how to get rid of mice.

4. It’s also important to clean up any food sources that are readily available in your home or business. If you have pets, make sure to keep their food and water dishes away from the reach of mice. In that way they will not be able to find access into their house through these openings.

5. It is also important for people to check for cracks, and holes. Mice can enter into a house or office building during day hours. Once you leave at night time then there is no way for them to get back inside.

6. Try using glue traps which can help you catch rodents alive, as well as trapping them without harming them. This will prevent mice from getting injured or killed while trying to get away from traps set by humans. 


Further more, make sure that if you decide to use these kind of traps, they should be properly installed with some kind of bait placed inside, like peanut butter or cheese. In that way you can easily catch them alive with no injuries at all. 

The trouble with the rat race is that if you win, you are still a rat.

There are many different ways to get rid of mice using mice and rat repellent, mice killer, mice removal products, mice exterminator services, mouse trap, mice and rat poison etc. If you want to get rid of mice naturally without using any poisons or chemicals, the best way to do this is by sealing up any holes, and crevices. As well as eliminating all food sources for them such as grains and seeds. 

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How Do Mice Get Into My House?

Utility Line Openings

Utility and HVAC line openings can present the perfect passage for a mouse to enter your house. The holes cut for these openings are often overly large, allowing for mice to easily crawl through them. Mice can get into your home through holes or cracks in the walls, floors, doors and windows, through holes under the carpeting, woodwork or even vents. 

Further more, mice can enter your house by chewing electrical wires as well as pipes. Because they are made of plastic materials such as PVC pipe, and PEX pipe.


Chimneys offer another opening for mice, through which they can climb directly down into your house. Mice can climb vertical walls given enough grip, therefore scaling your exterior wall and abseiling down your chimney doesn’t present too much of a challenge for them.

Cracked Foundations

Mice can also gain access to your house via cracks in the foundation, cracks in walls. If cracks are large enough, mice can easily squeeze through into your home.

Gaps Under Your Roof

Another entry point for mice can be the gaps under your eaves. Depending on the construction of your house, there may be gaps, that a mouse could fit through without an issue.

Exterior Basements Doors

Exterior basement doors, or “Bilco” doors, pose another possible entryway for mice. Between these doors, there are often gaps that are large enough for a mouse to fit through. As mice have been proved to squeeze through dime-sized holes, even if the gap does not look big enough to accommodate a mouse, it probably is!

Through Your Garage

Garage doors also do not seal 100% and often have gaps at their base through which mice can easily squeeze in. Your garage can also pose as the perfect hiding zone for a mouse, especially if it contains a lot of stored items and inaccessible corners.

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Diseases that Mice Carry

Mice can carry a variety of diseases that can be transmitted to humans through direct contact with the rodents, their droppings, urine, or saliva. Some of the diseases associated with mice include:

  • Hantavirus Pulmonary Syndrome (HPS)
  • Salmonellosis
  • Leptospirosis
  • Lymphocytic Choriomeningitis (LCM)
  • Tularemia
  • Plague


The summer influx of mice into our homes is a fascinating interplay of nature’s rhythms and our modern habitats. Driven by a quest for shelter, food, and ideal nesting conditions, these tiny creatures find themselves inadvertently intertwined with our human lives.

As temperatures rise and vegetation flourishes, mice embark on a quest for comfort and sustenance, seeking refuge in the cool corners of our homes. While their presence may be unwelcome, it serves as a reminder of the intricate dance between wildlife and civilization.

Understanding their behavior not only allows us to implement effective pest management but also provides a window into the delicate balance of ecosystems, reminding us that even in our constructed environments, nature finds its way.

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