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Carpenter Ant Killers

10 Best Carpenter Ant Killers 2025 in the United States

#1

Winner

9.7 score

TERRO T300B Indoor Liquid Ant Killer , 12 Bait Stations

8%OFF

TERRO T300B Indoor Liquid Ant Killer , 12 Bait Stations

Terro

9.7 score

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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.

Rating
9.7
Chosen by1,315
Application Method
Residual Effect
Ease of Use

Most important from
171057 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
9.4 score

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

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

Spectracide

9.4 score

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The Spectracide Terminate Termite & Carpenter Ant Killer is designed to combat wood-destroying insects like termites, carpenter ants, and carpenter bees. It uses Lambda-Cyhalothrin as its active ingredient, known for its effective insect-killing properties. This product comes in a large 1.33-gallon ready-to-use spray bottle, making it suitable for both indoor and outdoor use. It has a clear formula that doesn't stain and leaves no lingering odors, which is great for maintaining the appearance and comfort of your home.

Rating
9.4
Application Method
Safety
Ease of Use

Most important from
11719 reviews

Application Method
The units seem to be working effectively to bait and attract termites, even in varying soil types from sandy to clay.
Safety
No issues with pets disturbing the units after initial curiosity, and mud coverage does not reduce their effectiveness.
Ease of Use
Compared to professional installation and maintenance, these bait stations offer a great deal and are cost-effective.
#3
9.1 score

TERRO T1813B Outdoor Ready-to-Use Liquid Ant Bait Stake Killer Trap - Kills Common Household Ants 12 Stakes

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TERRO T1813B Outdoor Ready-to-Use Liquid Ant Bait Stake Killer Trap - Kills Common Household Ants 12 Stakes

Terro

9.1 score

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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.

Rating
9.1
Residual Effect
Ease of Use

Most important from
10741 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.

Top 10 Best Carpenter Ant Killers 2025 in the United States

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FurSnare PEST SUPPLIES

Mouse Bait Station for Outdoor & Indoor with Keys - Mice Traps for House Indoor Kill - Mouse Poisoning Rat Bait Box for Home, Pest Control - Reusable, Safe for Kids & Pets (6 Pack Rodent Traps)

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#1

Winner

9.7 score

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Terro

TERRO T300B Indoor Liquid Ant Killer , 12 Bait Stations

Active Ingredient: Borax
Formulation Type: Liquid
Application Method: Ready-to-use
Safety: Safe when used as directed
Residual Effect: Strong, kills ants over time
Ease of Use: User-friendly, no setup required

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8% OFF

Chosen by 1315 this week

Sponsored

Slide 1

FurSnare PEST SUPPLIES

Mouse Bait Station for Outdoor & Indoor with Keys - Mice Traps for House Indoor Kill - Mouse Poisoning Rat Bait Box for Home, Pest Control - Reusable, Safe for Kids & Pets (6 Pack Rodent Traps)

Check price

#2

9.4 score

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Spectracide

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

Active Ingredient: Lambda-Cyhalothrin
Formulation Type: Clear formula
Application Method: AccuShot sprayer
Safety: EPA-approved
Residual Effect: Up to 9 months indoors
Ease of Use: Continuous, precise application

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21% OFF
#3

9.1 score

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Terro

TERRO T1813B Outdoor Ready-to-Use Liquid Ant Bait Stake Killer Trap - Kills Common Household Ants 12 Stakes

Formulation Type: Liquid
Application Method: Insert stakes, cut tab to activate
Ease of Use: Easy-to-use

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11% OFF
#4

8.8 score

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Amdro

Amdro Ant Killer for Outdoor Home Perimeter, 12oz

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#5

8.5 score

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Amdro

Amdro Yard Treatment Bait Kills Fire Ants Granules 5 Pounds

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41% OFF

Related Products

Up to 41% off

#6

8.2 score

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BioAdvanced

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

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#7

7.9 score

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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% OFF
#8

7.6 score

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Bayer

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

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#9

7.3 score

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Terro

TERRO T1901-6 Ready to Use Indoor and Outdoor Carpenter Ant, Termite, and Carpenter Bee Killer Aerosole Spray - 16 Ounces

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15% OFF
#10

7.0 score

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Terro

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

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22% OFF
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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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