Chicago Area Ant Control Since 1976
Landmark provides science-based ant control for Chicago area homes. Our technicians identify ant activity, consider species behavior, and use targeted treatment methods to help address the colony, reduce recurring infestations, and keep ants out of your home.
- Ant control and ant removal for Chicago area homes
- Treatment for ants in kitchens, pantries, bathrooms, and other indoor areas
- Targeted treatment for carpenter ants and common household ant species
- Exterior perimeter treatments intended to help keep ants out
- Integrated Pest Management methods based on species behavior
- Complete Home Care options for recurring ant activity and year-round prevention
Get Help From a
Local Pest Specialist
Tell us what ant activity you are seeing, where it is happening, and whether ants keep coming back. Landmark can help identify the right next step for treatment, removal, and long-term prevention.
Chicago Area Ant Control Backed by Decades of Experience
Landmark provides targeted ant control and prevention services designed to assist homeowners get rid of active ant problems and reduce recurring infestations.
Our certified technicians use Integrated Pest Management methods and species-specific treatment strategies to identify ant activity, target problem areas, and support long-term prevention.
State-Certified Technicians
Our technicians receive ongoing training in pest behavior, treatment methods, and prevention-focused pest management strategies.
Science-Based Treatment Methods
Landmark uses science-based treatment approaches informed by ant behavior, infestation patterns, colony development, and Integrated Pest Management principles.
Long-Term Ant Prevention
Ant activity often returns when underlying colony, food source, moisture, and entry-point issues are not addressed. Landmark’s Complete Home Care program combines monitoring, perimeter treatments, and prevention-focused service intended to reduce recurring ant activity year-round.
Comprehensive Ant Control and Prevention for the Chicago Area
Get rid of ants and help keep them from coming back with targeted, science-based treatment.
Environmentally-Conscious Ant Treatment
Targeted ant treatments designed to reduce activity while supporting long-term prevention strategies.
Targeted Ant Control for Homes and Families
Integrated Pest Management methods designed to help reduce recurring ant activity while supporting residential environments with children and pets in mind.
Help Keep Ants From Returning
Targeted perimeter treatments and prevention-focused service intended to reduce recurring ant activity around common entry points.
Trusted Ant Control for Chicago and Surrounding Suburbs
Different ant species create different problems inside the home, from recurring kitchen infestations and food contamination concerns to carpenter ant activity damaging wood structures. Landmark provides targeted ant control and prevention services to help reduce recurring ant activity around common nesting and entry areas.
Since 1976, Landmark has provided ant control services for homes throughout Chicago and surrounding suburbs using Integrated Pest Management methods and species-specific treatment strategies.
- Targeted ant treatments based on species behavior and infestation patterns
- Treatment for kitchens, pantries, and other common ant activity areas throughout the home
- Carpenter ant treatment and prevention-focused service for wood-damaging ant activity
- Exterior perimeter treatments focused on reducing recurring ant activity around common entry points
- Integrated Pest Management methods and environmentally-conscious treatment approaches for residential homes
- Prevention-focused service options available through Complete Home Care
Ants have their place in nature, not in your house. Landmark’s targeted ant treatment and ongoing monitoring help keep them that way.
Why Ant Activity Inside the Home Should Be Addressed Early
Ants often travel through kitchens, pantries, trash areas, bathrooms, and other moisture or food-related spaces inside the home. Some ant species can contaminate food preparation surfaces and create recurring activity around food and moisture sources.
Landmark uses environmentally-conscious ant treatment methods designed to target active ant nesting and activity areas throughout the home. Treatment approaches focus on helping reduce recurring ant activity by addressing colony development, common entry points, and areas where ants commonly travel and gather.
Complete Home Care provides year-round monitoring, prevention, and treatment for ants and more than 40 common household pests.
Why Store-Bought Ant Treatments Often Fail
Many store-bought ant treatments only address visible ant activity without targeting the colony, nesting areas, or entry points. Ant activity often returns when the source of the infestation is not fully addressed.
Landmark uses targeted ant treatment and prevention-focused service designed to address ant nesting areas, common travel paths, and recurring activity throughout the home.
Exterior perimeter treatments and ongoing monitoring help address common entry points and support continued ant prevention around foundations, exterior gaps, and other vulnerable areas.
Why Ants Keep Coming Inside the Home
Ants are attracted to food sources, moisture, warmth, and shelter commonly found inside the home. Kitchens, pantries, bathrooms, and foundation gaps often create ideal conditions for recurring ant activity.
Some ant species create recurring kitchen and pantry infestations, while carpenter ants can damage wood structures over time. Landmark uses science-based treatment methods and prevention-focused pest management designed to target active ant areas and help reduce future activity around the home.
Early treatment and ongoing prevention help reduce recurring ant activity and support long-term protection for your home.
Understanding Ant Activity Around the Home
There are more than 20 ant species in the Chicago area, and different species behave differently. Effective ant control often requires species-specific treatment strategies based on nesting behavior, colony development, food sources, moisture sources, and entry points.
Many store-bought ant treatments only address visible ant activity without targeting nesting areas and entry points. Landmark uses environmentally-conscious treatment methods designed to address active ant areas and reduce future activity around the home.
Common Problems Caused by Ant Activity
- Ants can contaminate food preparation areas, pantry spaces, and stored food items
- Carpenter ants can damage wood structures by nesting inside moisture-damaged wood
- Some ant species can sting or bite when nests are disturbed
- Outdoor ant colonies can create recurring activity around foundations, patios, landscaping, and common entry points
Identification
The four most common types of ants in Illinois are Odorous House ants, Carpenter ants, Pharaoh ants, and Pavement ants. Each ant species is treated differently, so our team begins every treatment program by properly identifying the species.
Odorous House Ants
This ant species can be easily identified by its signature odor. When crushed, the Odorous House ant smells like ammonia.
This species can be difficult to control because its colonies generally contain multiple egg laying queens, resulting in vast numbers of ants which spread when part of the colony breaks off to form its own colony, or when part of the colony decides to swarm.
Carpenter Ants
Despite their name, Carpenter ants do not actually eat wood. Rather, they hollow it out to form tunnels and chambers where they live. They have large jaws that can deliver a painful bite.
Homes that have experienced a roof leak or other water damage often have a Carpenter ant infestation, because Carpenter ants prefer moist wood. Common Carpenter ant nesting sites include fence posts, firewood piles, decaying trees, porches, roofing, sub-flooring, doors, wall voids, insulation, and around water sources like bathtubs, dishwashers, showers and sinks.
Pharaoh Ants
Pharaoh ant colonies can contain thousands of members with multiple queens. Unlike other ant species, Pharaoh ants don’t swarm. Instead, they engage in a process known as budding, in which a part of the colony will break off and migrate when the colony starts running out of space or resources.
Pharaoh ant colonies can also be difficult to find, because colony members roam more than 150 feet from their nest. These behaviors can make Pharaoh ants particularly difficult to treat without proper experience and professional tools.
Pavement Ants
Pavement ants prefer to build their colonies beneath rocks or in pavement cracks, excavating sand from crevices in asphalt and concrete. Pavement ants can infest insulation, walls, and floors. They may enter structures through small cracks and crevices.
Ants with Wings
To establish new colonies, reproductive ants develop wings. They fly away from the colony to reproduce and start new colonies of their own. Winged ants are frequently misidentified as termites. Landmark technicians are specially trained to be able to tell the difference and treat the problem correctly.
Science-based wildlife control and pest management for Chicago area homes and businesses.







