How to Get Rid of Cockroaches – Kill Roaches Fast

A cockroach infestation is probably the hardest to get rid of compared to any other pest problem.How to Get Rid of Cockroaches

Besides being very sneaky, cockroaches breed very fast, bite human beings when food sources are limited,  scared, and may even develop resistance to some pesticides.

But don’t despair. In this article, we discuss in detail some of the best ways on how to get rid of cockroaches fast.

Related Post: best drain cleaners.

How to Get Rid of Cockroaches

1. Eliminate Food, Water, & Hiding Places

For cockroaches, such as German Roaches, to survive they must have a consistent supply of food and water. The key to getting rid of them is, therefore, cutting off any food and water source in the house.

  • Start by cleaning food crumbs, washing dishes before retiring to bed, putting food away after meals, and cleaning up spills. Also, avoid leaving uncovered food for extended periods, and keep all food containers sealed.
  • Cockroaches love hiding in the fridge and munching on food crumbs back there. Clean the fridge as well and always keep it locked. While at it, don’t forget to wipe the range tops as cockroaches are attracted to grease as well.
  • Take out the trash regularly while ensuring the garbage bins are well sealed.
  • Any water leaks must also be fixed. Cockroaches can live for a month without food but no more than one week without water.

Roaches also prefer dark and damp where they hide and breed. These include under the sink, behind refrigerators, under floor drains, in cracks/crevices, inside major appliances, and others.

Target these areas when doing a thorough cockroach clean up. Also, seal cracks and crevices on the walls with caulk. All openings around the pipes in the kitchen and bathroom must also be filled. This will prevent the roaches from entering your home.

2. Use Roach Baits, Roach Sprays, & IGRs

The triple action of cockroach baits, sprays, and Insect Growth Regulators (IGR) will kill and prevent cockroaches from reproducing.

As the name suggests, cockroach baits help draw these pests out of their hiding places. The baits contain a high-consumption bait matrix with killer ingredients like fipronil and hydramethylnon.

Upon consuming the bait, the ingredients disrupt their nervous system, leading to their ultimate death in a matter of minutes. You may also consider roach bombs.

Pesticide sprays contain active ingredients like Pyrethrin which produce a “knockdown effect” on bugs like cockroaches – killing roaches even back in the roach nest. Basically, the sprays interfere with the bugs’ nervous system which results in major paralysis and speedy death.

How to Use Baits, Sprays, and IGRs for Cockroaches 

  • If using the combination, spray a small amount in targeted areas like cracks, crevices, behind and beneath the sinks, behind and under refrigerators around pipes and drains, etc.
  • Ensure the spray penetrates well to ensure the pests are quickly eliminated

IGRs, on the other hand, cause sterility in adult roaches, making reproduction impossible. When used together, the three treatment methods can quickly eliminate any roaches lurking in your home.

3. Dust with Boric Acid Powder

Boric acid is one of the best natural remedies for eliminating roaches. When ingested, boric acid kills cockroaches in just a matter of minutes. Although highly toxic in cockroaches, boric acid is completely safe for humans and pets.

The powder is best applied in areas where cockroaches are likely to walk through. Upon contact, the powder sticks on the cockroach and is absorbed into its body. Once inside, the acid destroys its digestive and nervous system, causing death.

The cockroach may also die from ingesting the powder. Boric acid is a suitable natural cockroach treatment if pesticide sprays and baits are not an option.

How to Use Boric Acid for Cockroaches 

  • Clean all targeted areas, including cabinets, countertops, sinks, drawers, behind and under the refrigerator, and others
  • Lightly dust boric acid powder all over these areas. If dealing with a serious infestation, a heavy application may be necessary
  • Vacuum the remaining powder in the morning

4. Thoroughly clean house/ Vacuuming

It’s not unlikely to find a few roaches in a clean home. As long as there are cracks on the walls and perfect hiding places, you’ll still deal with a few of them crawling around since roaches don’t fly.

However, a clean home is more unlikely to experience a serious roach infestation compared to a dirty and cluttered home.

Even with countless treatments, roaches will still infest your cluttered home. Regularly vacuuming and decluttering your home is key to keeping these bugs at bay.

How to Get rid of Cockroaches Through Vacuuming/Cleaning 

  • Regularly vacuum and clean the floor, kitchen countertops, drawers, cabinets, insider appliances, behind and under the refrigerator, ovens, and other areas.
  • Declutter your kitchen, sitting area, laundry room, closets, cupboards, drawers, and any other potential hiding place.
  • Vacuum behind the seat cushions, behind sofas…etc

Wrap Up

Cockroaches are not only stubborn and unsightly- but they are also disease carriers and can be dangerous to have around.

Don’t wait till the infestation gets out of hand. These useful ways on how to get rid of cockroaches will help you banish them for good.


1. NCBI – Evaluation of Some Plant Essential Oils against the Brown Roaches 

2. Purdue – Single insecticide application can kill 3 cockroach generations

3. Cockroaches – World Health Organization


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