Heritage Council Neighborhoods Why Do Ants Come in the House When It’s Hot

Why Do Ants Come in the House When It’s Hot


Why Do Ants Come in the House When It’s Hot

As temperatures rise during the summer months, you may notice an increase in the number of ants invading your home. These tiny creatures seem to appear out of nowhere, exploring every corner and crevice in search of food and shelter. But why do ants come in the house when it’s hot? Let’s explore some reasons behind this common phenomenon.

1. Seeking water: Ants require water to survive, and during hot weather, their natural water sources may dry up. This forces them to venture into your home in search of moisture.

2. Escaping the heat: Just like humans, ants seek refuge from the scorching outside temperatures. Your home provides a cool and comfortable environment, making it an attractive retreat for these pests.

3. Food source: Ants are constantly foraging for food, and your house is a treasure trove of edible delights. Crumbs, spills, and open food containers are all enticing invitations for ants to invade your space.

4. Nest location: Ants establish colonies in areas with suitable conditions for their survival. Your house can provide an ideal nesting site, offering protection from predators and the elements.

5. Scent trails: Ants use chemical trails to communicate with each other and navigate their surroundings. If a few ants have discovered food in your home, they will leave a trail for their colony mates to follow, resulting in a steady stream of ant traffic.

6. Structural issues: Tiny cracks and gaps in your home’s exterior provide easy access for ants. They can enter through these openings, making their way into your living spaces.

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7. Air conditioning: Ants may be attracted to the cool air emitted by your air conditioning unit. The condensation that forms around AC units can also serve as a water source for them.

8. Garden proximity: If you have a garden close to your house, ants may venture indoors in search of food or to establish satellite colonies.

9. Species behavior: Different ant species have varying preferences. Some ants, like Argentine ants, are known to seek shelter indoors during hot weather.

10. Reproduction: Ants may also enter your home to find suitable places to mate and lay eggs. The controlled environment of your house offers protection for their offspring.

11. Previous infestations: If you’ve had ant infestations in the past, the pheromone trails left behind can attract new ants to your home, even during hot weather.


1. Are ants harmful to humans?
Ants are generally considered a nuisance pest, but some species can bite or sting. Additionally, they can contaminate food.

2. How can I prevent ants from entering my home?
Seal cracks and gaps, clean up spills promptly, store food properly, and eliminate standing water sources.

3. What should I do if I have an ant infestation?
Contact a professional pest control service to inspect your home and develop a suitable treatment plan.

4. Are there DIY methods to get rid of ants?
Yes, there are various DIY methods such as using vinegar, lemon juice, or diatomaceous earth to repel ants. However, these may not eliminate the entire colony.

5. Can ants damage my property?
While ants are not known to cause structural damage, certain species can chew through materials such as wood or electrical wires.

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6. How long do ant infestations last?
The duration of an infestation varies depending on factors like ant species, food availability, and environmental conditions. It can last anywhere from a few days to several weeks.

7. Do ants have any benefits for the ecosystem?
Yes, ants play important roles in the ecosystem, such as aerating soil, dispersing seeds, and controlling other pests.

8. Can ants carry diseases?
Ants are not significant disease carriers, but they can spread bacteria and contaminate food if they come into contact with it.

9. Why are ants so difficult to eliminate?
Ant colonies consist of hundreds or thousands of individuals, making it challenging to eradicate them entirely without professional help.

10. Can ants cause allergies?
Some people may experience allergic reactions to ant bites or stings.

11. How can I prevent ants from returning after treatment?
Maintain cleanliness, seal entry points, and address moisture issues to minimize the chances of re-infestation.