How To Kill Small Ants In The Garage? All You Need To Know

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Do you want to find out how to kill small ants in the garage? Well, I will tell you the best methods you can use to kill them. And not just that, I will also share the prominent reasons for why the ants keep coming back to your garage along with the measures to avoid an infestation. 

Let us take a look.

What To Do If Your Garage Is Infested With Small Ants?

how to kill small ants in garage

When you sense the presence of small ants in your garage, the first thing you should do is wipe away their pheromone trails, which will give you some time to act.

You don’t always have to clean up the ant trail right away. After following their route, if you can determine where they are coming from, you may install ant traps on it, and the ants will take the toxic bait back to their nest.

How to kill small ants in the garage?

When you are trying to kill the small ants in your garage, no one best approach suits all case scenarios. A lot of factors, such as the infestation size, the amount of money you are willing to spend, etc., have to be taken into consideration.

Keeping that in mind, I have put forward three different types of methods and a few examples in each method that you can use to kill the small ant infestation in your garage.

Ants on the floor inside house. A path of colony black and brown ants. Many beetles eat on the floor in the apartment.

Here is a fun fact for you: Ants vigorously defend their herds of aphids from predators and parasites, ensuring that they have enough food to eat. In exchange, aphids offer ants a consistent supply of sweet honeydew, which is a sugary treat for the ants.

And thus, be mindful of the fact that the ants will put on a good fight by changing their hiding place and getting divided and spreading throughout your house, which is why whatever method you opt for, use it properly.

Natural Methods

There are numerous methods for removing small ants and their colonies from your garage. While chemicals and professional exterminators may be required in some circumstances, natural home remedies can eliminate the problem without introducing chemicals or toxins into your environment.

Here are some of the greatest natural techniques to kill and repel ants.



Because the insects appear to find the fragrance of black or cayenne pepper disagreeable, it is a natural small ant repellent.

Sprinkle peppermint throughout your garage to employ this strategy. According to anecdotal evidence, this is a safe technique to help keep little ants at bay.

White vinegar 

White vinegar in glass bottle isolated on white background with clipping path

White vinegar, which is widely accessible in supermarkets, is an inexpensive and effective solution to kill and repel small ants from your garage. It is also a natural cleaner.

Use equal parts of water mixture in and around your garage, especially in areas where ants are likely to congregate. If you detect any ants, spray them with the mixture or wipe them away with a paper towel.

After the vinegar dries, ants can smell it, but most humans can’t smell it for long.

Boiling water 

Boiling water

Pour a big bucket of boiling water into any ant holes you see around your garage. Many of the small ants within will be killed quickly and successfully using this procedure. Anthills may appear to be little, but the ant colonies beneath them are enormous.

Other popular natural methods include using essential oils, tea tree oil, oranges, lemon peels, soap water, a tablespoon of diatomaceous earth, etc. You can use it to kill small ants present in your garage.

Chemical Methods

There are several chemicals that can be used to kill ants. Furthermore, if the ants have developed an immunity to a specific poison, you may need to apply many chemicals for a single treatment. Take a look at some of the prominently used options, along with their rationale.

Boric Acid or Borax Acid

Selective focus of a bottle of pure boric acid chemical compound beside a petri dish with solid crystalline powder substance. White Chemistry laboratory background with copy space.

Boric acid or borax acid is one of the most commonly utilized compounds to eradicate ant problems. It’s usually scattered about the garage as a powder.

It is not only efficient against ants but also against cockroaches and termites. Boric acid’s sweetness attracts the ants, but it poisons their stomachs once ingested. Even worse, the ants mistake the boric acid for a tasty delicacy like sugar and wind up poisoning their own kind.

However, keep in mind that boric acid might be dangerous to pets and children.


Hydramethylnon destroys a wide range of pests, including small ants.

Hydramethylnon, like boric acid, does not immediately kill little ants. Instead, it kills them gradually over a few days, giving the ants more than enough time to transport plenty of the toxin back to their colony. This will kill a lot of ants over time and should finally solve your problem effectively.


Fipronil is a beneficial substance since it is less harmful than boric acid and hydramethynon.

When an ant comes into touch with fipronil, the ant’s nervous system is attacked, and it dies instantly. Fipronil is often placed near ant nests and entry sites — areas where ants are likely to congregate. Fipronil emits a moldy stench that attracts a variety of pests, including small ants.

Piperonyl Butoxide 

While not a toxin in and of itself, piperonyl butoxide is added to several insecticides to increase their effectiveness. Piperonyl butoxide affects the metabolism of ants, causing them to succumb to toxins more quickly. 

Professional ant exterminators

Pest controller

Professional pest control operators frequently use gel bait pesticides to manage and eliminate small ants from garages and homes.

This necessitates the deployment of small gel bait beads, mainly in places where ants have been observed feeding or trailing. The bait can be placed on little pieces of cardboard or another sort of holder, or it can be kept in an ant bait station.

All you need to do is, contact a professional ant exterminator and inform them about any possible allergies that you, your kids, or pets may have. The exterminators will take care of everything else for you.

What causes ant infestation in the garage?

A heavy ant infestation swarms inside a home.

Small ants and carpenter ants are drawn to garages because they feature wood frames and parts of the wall that are not adequately sealed and can provide an easy entry point. In addition, garages have higher levels of moisture than other rooms of the house, which attracts ants.

How to Prevent small ants infestation in garages?

It is easy to prevent having to clean up after a swarm of odorous house ants in the garage. Most of the time, if you don’t give them a reason to be in your garage, they won’t even notice the place. It is normal to use a garage as a storage space or a workshop, which results in waste and debris piling up.

Shot of Ants hunting for sweet food on the empty dish.

Ants are drawn to the disarray and the groceries that have been stored. If you opt to keep grocery goods in your garage, limit them to canned food because ants will notice if you keep significant volumes of bagged sugar or similar products for an extended period of time.

Ensure that all of your groceries are properly stowed and out of reach of ants. If you leave dirty dishes in our garage by any chance, you are giving the ants an open invitation.

It is common to find garages full of piled-up items that no one uses. This can also attract ants looking for food or a location to build nests. I am not saying that you get rid of everything in your garage, but keeping it neat and clean is part of the solution.

Attempt to organize the storage so that you can clean it without too much difficulty on a regular basis.

Vacuuming on a regular basis is vital because if ants have already made their way into the garage, you will eliminate their scented trail, making fresh ants unable to follow them. After vacuuming, using a decent household cleaner is a huge step toward keeping ants out of your garage.


An infestation of ants in your garage can be a great headache since they put your home in jeopardy. You can kill the ants in your garage in various ways, ranging from baits and traps to applying a full-scale insecticide on an ant colony. Keep an eye out for ant nests and any leaks in your garage roof, as ants prefer moist environments.

Try to solve any difficulties as soon as feasible. After you’ve dealt with your ant colony, make an effort to keep your garage clean and orderly, and look for any potential access spots. Repair any wall or foundation cracks, and seal all windows and the garage door.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.