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How Do Ants Get in Your House?

Gary Anderson • November 1, 2024

Ants invading homes is a common issue that can occur seasonally or year round, depending on your location and the specific ant species involved. These tiny intruders can seem to appear out of nowhere and quickly turn a pest free home into an ant infested space. Ants are incredibly resilient and adaptable which makes them one of the most challenging household pests to manage. They can enter your home through various means including small cracks in walls, gaps in the foundation, spaces beneath flooring, and even through open windows and doors. Some ant species, like pavement ants, carpenter ants, and odorous house ants, may build nests outdoors and merely forage inside for food. Other species like pharaoh ants might establish permanent indoor colonies which can complicate control efforts. Understanding how ants access your home and identifying their entry points is crucial for effective prevention and elimination of these persistent pests.

How Do Ants Get Inside?

Ants are adept at infiltrating homes through a variety of entry points, often exploiting openings that are easily overlooked by homeowners. Once inside, ants leave chemical scent trails that guide other members of their colony to food sources which makes it crucial to eliminate these trails to disrupt their navigation. Understanding the different entry methods that ants use to enter a home is essential for effective ant prevention and control, as it allows homeowners to target vulnerable areas and implement appropriate measures to keep these persistent pests at bay. Each of the following access points should be monitored closely for ant activity in the presence of a potential infestation:

Cracks in Walls

Even the tiniest cracks in your walls can serve as an open invitation for ants to enter your home. These resourceful insects can squeeze through remarkably small openings. Common examples of this include gaps where walls meet floors or ceilings as well as spaces around utility installations like pipes and electrical conduit. Regularly inspecting and sealing these potential entry points is crucial for preventing ant infestations and maintaining a pest free home environment.

Gaps in Foundation

The foundation of your home, while seemingly solid, can harbor tiny gaps that provide ample entry points for ants. These insects are foragers by nature and in their search for food can exploit even the smallest fissures in your foundation to gain access to your living space. Regular inspection and maintenance of your home's foundation is essential to protect the integrity of your property.

Through Flooring

Ants can find unconventional pathways into your home, including through your flooring. These persistent pests can establish hidden routes beneath various types of flooring materials like carpet, tile, and hardwood. This subterranean approach allows ants to move undetected throughout your home which makes it challenging to locate and eliminate their entry points.

Doors and Windows

Doors and windows may be essential for ventilation and access but can also inadvertently become prime entry points for ants. Open doors and windows, especially during pleasant weather, provide an easy pathway for these opportunistic insects to enter your home. Additionally, window and door frames that have deteriorated due to moisture accumulation can become attractive nesting sites for certain ant species like carpenter ants and yellow ants.

Why Are There Ants Inside My Home?

Ants infiltrate residential spaces driven by their fundamental needs: sustenance, hydration, and refuge.


  • Ants are particularly attracted to sweet and sugary substances, so they often congregate around spills, sticky surfaces, or fallen food particles in kitchens and dining areas. However, their quest for sustenance isn't limited to sweets as they often seek out protein rich foods as well.
  • Water is another crucial factor drawing ants indoors, especially during dry weather conditions. You might notice increased ant activity in bathrooms, kitchens, or other humid areas of your home.
  • Additionally, environmental factors such as heavy rains can flood outdoor nests, forcing ant colonies to seek out shelter within your house. 

Where Are Ants Found Inside Your House?

Ants can be found gravitating towards areas that provide their essential needs. Kitchens are a prime target due to the abundance of food sources, while bathrooms attract ants seeking moisture. Bedrooms may also harbor these pests, especially if food is consumed or stored there. However, ant infestations aren't limited to these visible areas. Ant colonies may establish intricate networks within concealed areas like interior wall cavities and subfloor spaces.

Kitchen

The kitchen is often the epicenter of ant infestations in homes because it serves as a veritable buffet for these foraging pests. 

What Attracts Ants in the Kitchen?

Ants are primarily lured by food remnants like crumbs on countertops or floors, spills from sweet beverages, and even food particles that may accumulate in hard to reach areas beneath appliances. Open food containers, unsealed trash bins, and dirty dishes left in the sink can act as beacons for worker ants seeking out food for the colony. The presence of moisture that is often found near sinks, dishwashers, or refrigerators further enhances the kitchen's appeal to these insects.

How to Stop Ants in the Kitchen?

To combat kitchen ant infestations, it is important to maintain impeccable cleanliness. Promptly clean up any food or liquid spills, including those in hidden areas like under appliances. Store all food in airtight containers and refrigerate perishables. Consistently evacuate and sanitize waste receptacles, ensuring they are equipped with securely fitting covers. Seal potential entry points around pipes, windows, and doors. Additionally, fixing any leaks and reducing moisture sources can make your kitchen less inviting to ants. 

Bathroom

Bathrooms are often overlooked in pest control efforts even though they can be surprisingly attractive to certain ant species due to their constant moisture and warmth. While these areas may lack traditional food sources, they offer ideal conditions for ants seeking water and suitable nesting sites.

What Attracts Ants in the Bathroom?

The primary allure of bathrooms for ants is the abundance of moisture. Species like carpenter ants and pharaoh ants are particularly drawn to these damp environments. Carpenter ants prefer to nest in wet, decaying wood, which is often found behind bathroom walls, under tiles, or around fixtures like sinks, tubs, and showers that have leaks. Pharaoh ants, on the other hand, are attracted to warm, humid areas where they frequently establish colonies near hot water pipes and heating systems. 

How to Stop Ants in the Bathroom?

To prevent ant infestations in bathrooms, focus on reducing moisture and eliminating entry points. Start by fixing any leaking pipes or faucets to minimize excess water. Seal cracks in walls, floors, and around plumbing fixtures to block potential ant entry routes. Improve ventilation to reduce overall humidity and consider using a dehumidifier in particularly damp bathrooms. Regularly inspect and clean areas prone to moisture like under sinks and around toilet bases. 

How to Locate Ants Inside Your Home

Locating ants inside your home requires a systematic and observant approach. Begin by identifying the areas where you've noticed ant activity but resist the urge to immediately eliminate them. Instead, observe their behavior to determine what's attracting them and where they're coming from. Focus your inspection on moisture prone areas as most ant species prefer damp environments for nesting. Use a flashlight to thoroughly examine areas behind and under appliances, sinks, and cabinets. Don't overlook less obvious spots like the motor areas of refrigerators, behind wallpaper, and in small cracks and crevices around walls.


If you're only seeing sporadic ant activity, you can employ the honey and peanut butter test to concentrate their presence. Place small amounts of each on opposite ends of a jar lid or saucer near where you've spotted ants. This not only helps attract ants to a single location for easier observation but also aids in determining which type of bait might be most effective. Once the ants start trailing, use a flashlight during the evening hours (when ants are typically more active) to trace their path back to their entry point or nest. 

How to Find Ants Outside Your Home

Begin your outdoor inspection by examining areas that provide ideal conditions for ant species.


  • Check firewood stacks, piles of yard debris, and mulch beds, as these can offer perfect nesting environments.
  • Don't overlook man-made structures like electrical boxes, utility meters, and areas beneath your home's siding as ants often exploit these spaces as they provide ample protection against the elements.
  • Scan your lawn for telltale signs of ant activity like small dirt mounds or trails leading to and from your house.
  • Pay close attention to the base of trees, around plant roots, and under rocks or stepping stones. 

How to Prevent Ants from Coming Back

Preventing ants from returning after an infestation requires a proactive approach that addresses both the home environment and potential entry points. By implementing a combination of cleanliness measures, structural maintenance, and landscape management, you can significantly reduce the likelihood of future ant invasions. Here's a comprehensive list of preventive measures to keep ants at bay:



  • Swiftly address and remove any food residue or scattered particles
  • Safeguard all edibles, pet provisions included, in hermetically sealed vessels
  • Regularly empty and clean trash cans
  • Regularly cleanse pet feeding stations and their immediate surroundings
  • Replace mulch near your home's foundation with stones or rocks
  • Repair leaking pipes and address moisture issues promptly
  • Seal cracks and crevices in walls, foundation, and around utility entries with caulk
  • Uphold stringent hygiene standards in culinary and lavatory spaces
  • Ensure proper drainage around your home by cleaning gutters and directing downspouts away from the foundation
  • Trim trees and shrubs to prevent contact with your house to eliminate potential ant bridges
  • Position firewood stockpiles no less than 20 paces from your dwelling
  • Conduct routine examinations and upkeep of window and door barriers
  • Deploy moisture-extraction devices in humid zones to mitigate dampness
  • Properly ventilate crawl spaces and attics

How to Get Rid of Ants

Effectively eliminating an ant infestation requires a multi-faceted approach that addresses both the visible ants and their hidden colonies. By implementing a comprehensive plan that includes the following strategies, you can successfully rid your home of these persistent pests and maintain an ant free environment.

Spray Infested Areas

When dealing with ant infestations, incorporating a non-repellent ant spray into your treatment strategy can be highly effective. These specialized sprays are undetectable to ants which allows them to unknowingly traverse treated areas before inadvertently transporting the insecticide back to their nests. While the effects are not immediate, this delayed action is advantageous as it enables the product to spread throughout the colony, affecting a larger number of ants over time and potentially reaching the queen.

Spray Access Points

To effectively combat ant infestations, it's crucial to target their entry points into your home. Apply an appropriate residual ant spray directly into cracks, crevices, and other small openings around baseboards, appliances, door and window frames, and utility entry points. This strategic application creates a barrier that intercepts ants as they attempt to enter your living spaces to help prevent new invasions while addressing existing infestations.

Use Baits

Utilizing ant baits is a highly effective method for controlling infestations, as it exploits the ants' natural foraging behavior to deliver insecticide to the entire colony. Strategically position baits near areas of observed ant activity or adjacent to their trails. Focus on key locations like kitchen cabinets, countertops, areas around sinks and drains, near utility entry points, and in bathrooms. Regular monitoring and replenishment of baits is crucial for sustained effectiveness, with weekly checks recommended until ant activity ceases.

Hire Professional Pest Control Experts

When facing persistent or severe ant infestations, enlisting the services of professional pest control experts can provide a comprehensive and effective solution. These specialists possess in-depth knowledge of ant behavior, species-specific treatments, and access to professional-grade products that may not be available to the general public. Additionally, professional pest control services often offer ongoing monitoring and prevention plans which helps ensure long term protection against future ant invasions and other potential pest issues.

Contact EcoGuard Pest Management if You Are Dealing with Ants

If you find yourself battling persistent ant infestations despite your best efforts, it may be time to enlist professional help. EcoGuard Pest Management offers expert solutions tailored to your specific ant problem. Our experienced technicians can not only eliminate current ant invasions but also implement comprehensive prevention strategies to keep your home ant free in the long term. Don't let ants disrupt your peace of mind and compromise your living space. Contact EcoGuard Pest Management today for a thorough inspection and customized treatment plan. 

Ants Inside Your Home FAQs

  • Why do ants suddenly appear?

    Ants may seem to appear suddenly due to changes in environmental conditions or the discovery of new food sources. As the weather warms up, particularly in spring and early summer, ant colonies become more active and expand their foraging range. This leads to increased visibility inside homes. Additionally, even small food spills or changes in moisture levels can quickly attract scout ants, who then communicate the location to their colony, resulting in a sudden influx of ants in areas where they weren't previously noticed.

  • How to find where the ants are coming from?

    To locate the source of an ant infestation, carefully observe and follow ant trails back to their entry points or nests. Use the "honey and peanut butter test" by placing small amounts of each on a dish near areas of ant activity, then monitor to see which attracts more ants and follow their trails. Conduct a thorough inspection of your home's exterior and interior, focusing on common entry points like cracks in walls, gaps around windows and doors, areas where utilities enter your home, as well as moisture-prone areas in kitchens and bathrooms.

  • How do I get rid of ants in my house?

    To effectively eliminate ants from your house, employ a multi-faceted approach that combines sanitation, exclusion, and targeted treatments. Start by removing attractants such as food debris and addressing moisture issues, then seal potential entry points to prevent new ants from entering. Use a combination of non-repellent sprays along ant trails and entry points, and strategically place ant baits in areas of high activity. Be sure to monitor and replenish them regularly until the infestation subsides.

  • How to get rid of ants when you don't know where they're coming from?

    When dealing with ants whose entry point is unknown, focus on a comprehensive treatment approach throughout your home. Use a combination of non-repellent ant sprays along baseboards, in cracks and crevices, and around potential entry areas, while simultaneously placing ant baits in multiple locations where ant activity has been observed. Additionally, eliminate potential food and water sources, and maintain cleanliness to discourage ant presence.

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