10 Best Ant Killer Indoors 2025 in the United States

The TERRO T300B Indoor Liquid Ant Killer is a fast-acting solution designed to reduce ant activity within days. Utilizing 12 bait stations, it employs borax as the active ingredient, which is effective in attracting and eliminating common household ants, including those hidden in colonies that aren't immediately visible. This product's ease of use stands out, as it requires no setup—simply place the bait stations where ant activity is observed, such as along baseboards or on counters. This makes it a versatile option for various spots in the home.

Safety-wise, the liquid bait is contained within the stations, but it's essential to keep them out of reach of pets and children due to the chemical content. The product does not mention any strong odor, which suggests minimal disruption to your indoor environment. One potential drawback is that it requires monitoring and replacing bait stations as they become depleted, which could involve some ongoing maintenance. Additionally, while effective against sweet-eating ants, it may not be as effective for other types of ants or pests.

The TERRO T300B is a reliable choice for those dealing with indoor ant infestations, especially if you prefer a ready-to-use, low-odor solution.

The Hot Shot Pest Control Fogger is designed to tackle indoor pest issues, including ants, roaches, and spiders. It's a fogger type which means it creates a mist that can penetrate deep into cracks and crevices, effectively targeting both visible and hidden bugs. The fogger contains Tetramethrin and Cypermethrin as active ingredients, which are known for their quick action in killing insects on contact. This product is particularly effective for heavy infestations and continues to kill for up to two months after application.

A significant advantage is that it does not leave a wet or messy residue, making it easier to use without worrying about staining surfaces. Each can covers a substantial area of 2,000 cubic feet, which is suitable for large spaces like basements, attics, or garages. However, safety is a concern, as the product needs to be used in enclosed spaces, and users should ensure that pets and people are not present during application. Additionally, while it includes an odor neutralizer, some users might still find the smell noticeable.

In summary, the Hot Shot Pest Control Fogger is a powerful and convenient solution for those dealing with severe indoor pest infestations, albeit with some considerations for safety and odor.

BugMD Ant Killer & Bug Spray offers a natural, plant-based approach to indoor pest control, making it a strong choice for those concerned about chemical exposure in their homes. Its main active ingredients, clove oil and cottonseed oil, are known for their insect-repellent properties and are safer around families and pets when used as directed. The product comes as a concentrate, which you mix with water to create a spray, allowing flexible usage around various parts of the home including kitchens, bedrooms, and even outdoor areas. This concentrate format is convenient but requires preparation before use, which might be less straightforward for users wanting a ready-to-use spray.

The formula acts quickly, reportedly killing many pests within seconds and eliminating others within 30 minutes, and it can tackle multiple pests beyond ants, including roaches and spiders. It also targets all life stages of insects, increasing long-term effectiveness. BugMD is safe to apply on different surfaces like wood, carpet, and fabric without damage, which adds to its versatility. The odor comes from the essential oils, which some may find strong or unusual compared to traditional chemical sprays, but it avoids harsh chemical smells.

One limitation is the relatively small concentrate bottle size (7.4 oz), which might not be sufficient for very large infestations or extensive outdoor use without repurchasing. BugMD is well suited for users looking for a natural, safe, and multi-purpose indoor ant killer who don't mind mixing their spray and prefer a chemical-free solution.