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How to Get Rid of Ants in the Bathroom

Is your bathroom under siege by a relentless ant army?

Don’t let these tiny invaders disrupt your peace any longer!

Act fast!

This expert guide provides a step-by-step guide to eliminating ants from your bathroom, addressing the root of the problem, and preventing future infestations.

bathroom ants

Why Do I Have Ants in My Bathroom? What Attracts Ants?

Ants are drawn to bathrooms for several reasons.

By addressing these factors, you can make your bathroom less inviting to these pests.

Moisture and Water Sources

Ants, like all living creatures, require water to survive. Your bathroom provides numerous sources of moisture: [1]

  • Leaking pipes or faucets

  • Condensation from showers and baths

  • Damp towels or bath mats

Food Remnants and Debris

While ants may not directly feed on bathroom products, they’re attracted to the organic material these items leave behind:

  • Toothpaste residue

  • Soap scum

  • Hair and skin particles

Shelter and Nesting Opportunities

Bathrooms offer various hiding spots and nesting sites for ants:

  • Wall voids and pipe chases

  • Cracks and crevices in tile or flooring

  • Cabinets and storage areas

Ever wondered how ants find their way into your bathroom? Let’s investigate!

How Ants Get into Bathrooms?

To keep ants out, it helps to understand their entry points and behavior.

This knowledge will enable you to better defend your bathroom from these tiny intruders.

Here’s what you need to know.

Entry Points and Vulnerabilities in the Bathroom

Ants can enter your bathroom through various access points, which can be both small and difficult to detect.

  • Cracks and gaps around windows, doors, and baseboards

  • Plumbing and electrical penetrations

  • Ventilation systems

Ants’ Foraging Behavior and Scouting Patterns

Ants are social insects that live in colonies.

They send out scouts to find food, water, and nesting sites.

Once a scout finds a suitable location, it leaves a pheromone trail for other ants to follow.

This behavior explains the lines of ants you might observe in your bathroom. [2]

Curious about where ants are hiding in your bathroom? Keep reading!

Locations Where Ants Can Be Discovered in the Bathroom

You might spot ants in some unexpected places in your bathroom.

Being aware of these locations can help you identify and target infestations more effectively.

  • Sink and bathtub drains. Ants are attracted to the moisture and organic matter found in drains. They may crawl up pipes and gather around sink and bathtub drains in search of water and food.

  • Toilet base and water supply line. Look for ants near the base of the toilet or around the water supply line, as these areas can provide both moisture and shelter for the insects.

  • Shower and bath enclosures. Ants may hide behind tiles or in the corners of shower and bath enclosures. These spaces often accumulate moisture and organic debris, making them attractive to ants.

  • Cabinets and storage areas. Check under sinks, in medicine cabinets, and behind bathroom storage units for ant activity. These spaces can harbor food debris and provide dark, sheltered environments for ants to nest.

  • Wall voids and electrical outlets. Ants can nest in wall voids or travel through electrical outlets in search of food and water. They can also use these spaces to move between rooms and floors in your home.

Want to know which types of ants are invading your bathroom? Let’s identify them!

Identifying Ants Commonly Found in Bathrooms

Before we jump into solving your ant problem, it’s important to know which types of ants you’re dealing with.

This will help you better understand their habits, preferences, and potential risks they pose.

Here’s a list of some common species of ants invading your bathroom:

  • Pavement ants (sugar ants). They are black or dark red and get inside through cracks in the walls or floor.

  • Solenopsis molesta (thief ants). They are small and yellow and build their nests close to the nests of bigger ants.

  • Pharaoh ants. They are light brown or yellow and prefer warm and humid areas.

  • Carpenter ants. They are black or red and can damage wood by making tunnels inside it.

  • Argentine ants. They are dark brown and like sugar-based food.

  • Ghost ants. They are white and appear and disappear suddenly.

  • Moisture ants. They are yellowish and indicate rotting wood in the bathroom.

  • Odorous ants: They are brown or black and emit a rotten coconut smell when crushed.

  • Crazy ants: They are dark brown or black and have long legs and antennae. They are called crazy because of their erratic movements.

  • Winged ants: They are not a specific ant species, but a reproductive stage of some ants. They have wings and can fly to mate and disperse. They can be of different colors and sizes depending on the species.

An overview of ant characteristics can be found in the following table:

TypeColorSizeFood preferenceNesting site
Pavement antsBlack or dark red2.5 to 4 mmSugary or greasy foodsCracks in walls or floors
Solenopsis molestaYellow1.5 to 2 mmProtein-rich foodsNear other ant nests
Pharaoh antsLight brown or yellow2 mmSugary or fatty foodsWarm and humid areas
Carpenter antsBlack or red6 to 13 mmSugary or protein-rich foodsWood
Argentine antsDark brown2.2 to 2.8 mmSugary foodsDamp areas
Ghost antsWhite1.3 to 1.5 mmSugary or greasy foodsMoist and dark areas
Moisture antsYellowish4 to 4.5 mmFungi or honeydewWet and rotting wood
Odorous antsBrown or black2 to 3 mmSugary foods or honeydewIndoors or outdoors near moisture sources
Crazy antsDark brown or black2.3 to 3 mmInsects, seeds, fruits, or honeydewMoist soil, under rocks, in wood, or in wall voids
Winged antsVaries by speciesVaries by speciesVaries by speciesVaries by species

Now that you’ve identified what type of ants infested your bathroom, let’s explore some natural and DIY ant control solutions!

Natural and DIY Solutions to Get Rid of Ants in the Bathroom

Try these eco-friendly methods to eliminate ants in your bathroom without the use of harsh chemicals.

Vinegar and Water Solution

  1. Mix equal parts white vinegar and water in a spray bottle. Vinegar disrupts the ants’ pheromone trails, making it harder for them to communicate and navigate.

  1. Spray the solution on ants and their trails, as well as potential entry points.

Baking Soda and Powdered Sugar

  1. Combine equal parts baking soda and powdered sugar. The sugar attracts the ants, while the baking soda is toxic to them.

  1. Place the mixture in small containers or bottle caps near ant trails.

  1. The ants will take the bait back to their nest, where the baking soda will react with their stomach acid and eliminate them.

Diatomaceous Earth

  1. Sprinkle food-grade diatomaceous earth around ant entry points and trails.

  1. The sharp particles will damage the ants’ exoskeletons, causing them to dehydrate and die.

Essential Oils

  1. Mix 10-20 drops of essential oil (peppermint or tea tree) with water in a spray bottle.

  1. Spray the solution on ant trails and entry points.

Borax-based Baits

  1. Mix equal parts of Borax, sugar, and water to form a paste.

  1. Place the bait in small containers near ant trails.

  1. Ants will take the bait back to their nest, where the borax will poison and kill them.

If you’re looking for something stronger, check out our next section on chemical treatments and baits.

Chemical Treatments and Baits to Get Rid of Ants in the Bathroom

When natural and DIY ant control methods fail to solve your ant problem, you might need to consider chemical treatments and baits.

While chemical treatments are more potent than natural remedies, they can also be harmful to humans and pets, so it’s important to use them carefully and follow the instructions provided. [3]

Insecticidal Sprays

Insecticidal sprays contain potent chemicals that kill ants on contact or after ingestion.

When using insecticidal sprays, it’s important to target the ant trails, entry points, and nesting sites.

  1. Choose an insecticidal spray that is labeled for ants and safe for indoor use.

  1. Identify the ant trails, entry points, and nesting sites.

  1. Shake the spray can well and apply the spray directly to the ants or the surface they are crawling on.

  1. Follow the product label instructions for the recommended distance and application rate.

  1. Repeat the treatment as necessary, usually every few days, until the ants are eliminated.

Some insecticidal sprays have a residual effect, meaning that they continue to work for several days after application.

These sprays are especially useful for treating large infestations and preventing future ones.

However, be aware that residual sprays can also harm beneficial insects and pollinators, so use them sparingly and only when necessary.

Ant Baits and Traps

Ant baits and traps are a popular method for controlling ants because they are relatively safe and effective.

These baits consist of a toxic substance mixed with an attractive food source, such as sugar or honey.

The ants take the bait back to their nest, where they share it with the other ants, eventually leading to the entire colony’s demise.

  1. Choose an ant bait or trap that is labeled for indoor use and safe for your household.

  1. Identify the ant trails and suspected nesting sites.

  1. Place the bait or trap near the ant trails or suspected nesting sites.

  1. Avoid disturbing the ants or killing them, as this can interfere with the baiting process.

  1. Check the bait or trap regularly and replace it as necessary, usually every few days, until the ants are eliminated.

Safety Precautions When Using Chemical Treatments

When using chemical treatments and baits, it’s important to take safety precautions to prevent harm to yourself, your family, and your pets.

Here are some safety tips to follow:

  • Wear protective clothing and gear, such as gloves, goggles, and a respirator.

  • Keep children and pets away from treated areas.

  • Store chemicals in their original containers and away from food and water sources.

  • Follow the product label instructions carefully, including the recommended dosage, application method, and timing.

  • Dispose of unused chemicals according to the instructions on the label.

  • If you experience any adverse reactions or symptoms after using chemical treatments, seek medical attention immediately.

Eager to learn how to keep ants from coming back to your bathroom? Let’s dive in!

How to Prevent Ants from Infesting Your Bathroom

Preventing ant infestations in the bathroom is easier than dealing with them after they occur.

Here are some prevention strategies to implement:

Maintaining Cleanliness and Proper Hygiene

Ants are attracted to food and water sources, so keeping your bathroom clean and dry is essential for preventing ant infestations.

  • Wipe down your sink, bathtub, and shower after each use to remove any moisture or soap scum.

  • Clean up any food crumbs, spills, or pet food immediately.

  • Store your toothbrush and other personal care items in a cabinet or drawer.

  • Empty your bathroom trash regularly and keep the trash can sealed.

  • Sweep or vacuum your bathroom floor and baseboards regularly.

Sealing Cracks and Gaps

Ants can enter your bathroom through tiny cracks and gaps in your walls, windows, and doors.

Here are some tips for sealing these entry points:

  • Inspect your bathroom walls, windows, and doors for any gaps or cracks.

  • Use caulking or weatherstripping to seal any gaps or cracks.

  • Install door sweeps and window screens to stop ants from entering.

  • Keep your bathroom door closed to restrain ants from wandering in.

Addressing Moisture Issues and Repairing Leaks

Ants are attracted to moisture and water sources, so addressing any moisture issues and repairing leaks can prevent ant infestations.

  • Fix any leaky pipes or faucets promptly.

  • Repair any water damage or mold issues in your bathroom.

  • Use a dehumidifier to reduce moisture in your bathroom.

  • Install proper ventilation in your bathroom to prevent moisture buildup.

Storing Bathroom Products in Sealed Containers

Ants can also be attracted to personal care items, such as soap, shampoo, and lotion, so storing them in sealed containers can prevent ant infestations.

  • Store your personal care items in airtight containers or plastic bags.

  • Avoid leaving any wet or damp items, such as washcloths or towels, in your bathroom.


Whether you choose natural ant remedies, DIY solutions, or chemical treatments, always follow the instructions carefully and take safety precautions to protect yourself and your family.

And if your ant problem persists or worsens, don’t hesitate to call in a professional pest control expert.

If you have friends or family members who are struggling with an ant problem, please share this article with them. Let’s spread the word and help each other live pest-free lives!

The Ultimate Guide to Bugs in the Bathroom

Curious about other bugs that may be hiding in your bathroom? Our expert guide offers a comprehensive overview of bathroom bugs and provides actionable advice on dealing with them.

Dustin Carter

Dustin is the founder of Alpine Pest Control Solutions, the #1 best-reviewed pest control company in Austin, TX. He has been dealing with household pests for more than 15 years.

Dustin enjoys the opportunity to share with homeowners safe pest control practices that they can apply and unique tricks he has learned throughout his career as a pest control expert.

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