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Carpenter Ant Killers

10 Best Carpenter Ant Killers 2025 in the United States

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80PCS Rode

Failpest

80PCS Rodent Deterrent Balls, Non-Toxic Formula, Perfect for Large Spaces

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#1

Winner

TERRO T300

Terro

TERRO T300B Indoor Liquid Ant Killer , 12 Bait Stations

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Sponsored

80PCS Rode

Failpest

80PCS Rodent Deterrent Balls, Non-Toxic Formula, Perfect for Large Spaces

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#2
TERRO Liqu

Terro

TERRO Liquid Ant Baits - T1813 - Outdoor Ready-to-Use Terro Ant Traps - Pack of 12 Liquid Traps

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#3
Amdro Ant

Amdro

Amdro Ant Killer for Outdoor Home Perimeter, 12oz

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#4
Spectracid

Spectracide

Spectracide Terminate Termite & Carpenter Ant Killer, Localized Control Termite Spray, Kills Wood-Destroying Insects , 1.33 Gallon (RTU Spray)

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#5
TERRO T600

Terro

TERRO T600 Ant Dust Powder Killer for Indoors and Outdoors - Kills Ants, Fire Ants, Carpenter Ants, Roaches, Spiders, and Other Insects , 1lb

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#6
TERRO T260

Terro

TERRO T2600 Perimeter Ant Bait Plus - Outdoor Ant Bait and Killer - Attracts and Kills Ants, Carpenter Ants, Roaches, Crickets, Earwigs, Silverfish, Slugs and Snails - 2 Pack, 4Lbs

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#7
Maxforce Q

Bayer

Maxforce Quantum 0.03% Imidacloprid Ant Control Liquid Bait with 10 stations, 120 Gram Bottle

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#8
Ant Traps

Ortho

Ant Traps Indoor by ORTHO Home Defense 10pk- Metallic & Adhesive Ant Killer Indoor & Ant Killer Outdoor - Ant Trap & Ant Bait Traps Indoor Ant Killer - Ant Traps Outdoor,Ant Bait Outdoor

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#9
BioAdvance

BioAdvanced

BioAdvanced Carpenter Ant, Termite and Insects Killer Plus, Concentrate, 40 oz

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#10
Maxforce F

Maxforce

Maxforce Fleet Ant Bait Gel - Box (4 X 27 gr.)

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How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

TERRO T300B Indoor Liquid Ant Killer , 12 Bait Stations

9.7  score

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TERRO T300B Indoor Liquid Ant Killer , 12 Bait Stations

Terro

9.7  score

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Rating
9.7
Chosen by1,394
Application Method
Residual Effect
Ease of Use

Most important from
136067 reviews

Application Method
After placing the bait, ants were immediately attracted and within a day, they were gone.
Residual Effect
Works like a charm! Easy to use and lasts a long time.
Ease of Use
Works like a charm! Easy to use and lasts a long time.

The TERRO T300B Indoor Liquid Ant Killer with 12 bait stations is a highly effective solution for tackling indoor ant infestations. Its active ingredient, Borax, is well-known for its ant-killing properties. This liquid formulation ensures that ants are quickly attracted to the bait, which they then carry back to the colony, leading to a noticeable reduction in ant activity within a few days. This makes it an excellent choice for those dealing with a widespread ant problem indoors.

The product's design allows for easy placement along baseboards, in corners, and on counters, effectively targeting common household ants such as acrobat, crazy, ghost, little black, odorous house, and pavement ants, among others. Users will appreciate the ready-to-use feature, which requires no setup and provides a hassle-free application method.

Safety-wise, Borax is generally considered safe when used as directed, but it is always important to keep it out of reach of children and pets. The residual effect is strong as it continues to attract and kill ants over time, ensuring long-term control. The TERRO T300B is a reliable and user-friendly option for those needing an indoor ant control solution with minimal effort and maximum results.

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Rating
9.7
Chosen by1,394
Application Method
Residual Effect
Ease of Use

Most important from
136067 reviews

Application Method
After placing the bait, ants were immediately attracted and within a day, they were gone.
Residual Effect
Works like a charm! Easy to use and lasts a long time.
Ease of Use
Works like a charm! Easy to use and lasts a long time.
#2

TERRO Liquid Ant Baits - T1813 - Outdoor Ready-to-Use Terro Ant Traps - Pack of 12 Liquid Traps

9.4  score

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TERRO Liquid Ant Baits - T1813 - Outdoor Ready-to-Use Terro Ant Traps - Pack of 12 Liquid Traps

Terro

9.4  score

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Rating
9.4
Residual Effect
Ease of Use

Most important from
10886 reviews

Residual Effect
These stakes WORK! Within a week, no more ants on the deck or around the yard.
Ease of Use
Easy to use and very effective. No more ants in the backyard.

The TERRO T1813B Outdoor Ready-to-Use Liquid Ant Bait Stake Killer Trap is designed to attract and eliminate common household ants, including carpenter ants, using 12 liquid bait stakes.

Its active ingredient effectively eliminates both the ants you see and those in the colony, ensuring a comprehensive solution. The liquid formulation is highly attractive to ants, leading them to consume the bait and share it with the colony, which helps in eradicating the entire nest within a few days. This makes it a fast-acting solution for ant infestations.

Another advantage is its ease of use; simply insert the stakes into the ground and cut the tab to activate, making it a hassle-free option for outdoor ant control. Its design is specifically tailored for outdoor use, addressing the issue at its source before ants can enter your home. The TERRO T1813B offers an effective, easy-to-use solution for outdoor ant control.

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Rating
9.4
Residual Effect
Ease of Use

Most important from
10886 reviews

Residual Effect
These stakes WORK! Within a week, no more ants on the deck or around the yard.
Ease of Use
Easy to use and very effective. No more ants in the backyard.

Buying Guide for the Best Carpenter Ant Killers

Choosing the right carpenter ant killer is essential to effectively eliminate these pests and protect your home from damage. Carpenter ants can cause significant structural damage if left unchecked, so it's important to select a product that is both effective and safe for your environment. When evaluating different carpenter ant killers, consider the following key specifications to ensure you make an informed decision that best suits your needs.
Active IngredientThe active ingredient is the chemical component that kills the ants. This is important because different active ingredients work in different ways and have varying levels of effectiveness. Common active ingredients include boric acid, fipronil, and bifenthrin. Boric acid is a slow-acting poison that ants carry back to their nest, effectively killing the colony over time. Fipronil and bifenthrin are faster-acting and can provide quicker results. Choose an active ingredient based on how quickly you need to see results and whether you prefer a more natural option like boric acid.
Formulation TypeCarpenter ant killers come in various formulations, such as sprays, baits, dusts, and foams. This is important because the formulation affects how you apply the product and how it works. Sprays are good for immediate contact killing and treating visible ants. Baits are effective for long-term control as ants carry the poison back to their nest. Dusts can be applied in hard-to-reach areas and provide residual protection. Foams expand to fill voids and are useful for treating nests inside walls. Choose a formulation based on where you need to apply the product and whether you need immediate or long-term control.
Application MethodThe application method refers to how you apply the carpenter ant killer. This is important because it affects ease of use and safety. Common methods include ready-to-use sprays, bait stations, and powders that need to be mixed with water. Ready-to-use sprays are convenient and easy to apply directly to ant trails and nests. Bait stations are discreet and can be placed in areas where ants are active. Powders require mixing and can be more labor-intensive but offer flexibility in application. Choose an application method that fits your comfort level and the specific areas you need to treat.
SafetySafety is a crucial consideration, especially if you have children or pets. This is important because some carpenter ant killers contain chemicals that can be harmful if ingested or inhaled. Look for products that are labeled as safe for use around children and pets, or consider natural alternatives like boric acid. Always follow the manufacturer's instructions for safe application and storage. Choose a product that balances effectiveness with safety to ensure the well-being of your household.
Residual EffectThe residual effect refers to how long the product remains effective after application. This is important because a longer residual effect means you won't have to reapply the product as frequently. Some products offer immediate results but have a short residual effect, while others provide long-term control by continuing to kill ants for weeks or even months. Choose a product with a residual effect that matches your needs, whether you prefer a quick fix or long-lasting protection.
Ease of UseEase of use refers to how simple and convenient it is to apply the carpenter ant killer. This is important because a product that is difficult to use may not be applied correctly, reducing its effectiveness. Consider factors like whether the product requires mixing, how it is applied, and whether it comes with clear instructions. Choose a product that you feel confident using to ensure the best results.

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