How to Get Rid of Cockroaches in the Bathroom {An Ultimate Guide To Prevent Cockroaches In the Bathroom}

Are you seeing cockroaches in your bathroom? Do you need to know, “How to Get Rid of Cockroaches in the Bathroom?”

How did they get there? What is the best way to keep them out? Do cockroaches come out of drains and can we flush them down the toilet?

In this article, we’ll discover how to get rid of roaches in your bathroom.

How to Get Rid of Cockroaches in the Bathroom

Bleach or insecticides are toxic for cockroaches, but also for you. Pour boiling hot water, seal any cracks, holes and openings found in the bathroom. Screens on windows are a must for bathrooms.

Cockroaches can crawl up drains into humid and moist bathrooms where they enjoy hanging out. Give them a sugar trap mixed with baking soda or boric acid to kill them before flushing them down the toilet.

A living cockroach can hold its breath for 40 minutes in water. Seal drains with mesh wiring underneath drain covers for added protection against these pests.

Why Do I Keep Finding Roaches in My Bathroom?

Cockroaches are pesky and incredibly durable creatures. They can thrive in sewage systems and crawl up through your drains. Other times cockroaches can enter the bathroom by traveling through the house.

The bathroom is a perfect location for cockroaches because they are attracted to water, moisture and humidity. Here are some other way that cockroaches get into the bathroom:

  • gaps in baseboards
  • through leaky pipes
  • sliding under doors
  • small holes in walls or ceilings

Where Do Roaches Come from in The Bathroom?

Roaches can be found in bathrooms and kitchens alike. This is because these areas contain plenty of moisture, drainage and access to the outdoors.

Window sills, drainage pipes, cracks in piping and all other dark or humid areas allow for cockroaches to enter these two most popular rooms where you will find them lurking.

What Can I Pour Down The Drain To Get Rid of Cockroaches?

You shouldn’t try to pour toxic chemicals down your drain. Bleach and insecticides can release fumes that are poisonous for you and everyone in your house. Other solutions may even erode your pipes.

It might be just as effective to pour boiling water down the drain to clear out any roaches that are in your pipes and drains. Once your piping is clear of roaches, it’s time to repair these entry points or limit them.

A great suggestion is to create a cone shaped mesh wiring that you can insert into the drain to prevent cockroaches from entering. Flat mesh wiring is sold in many shops but a DIY solution to create a cone-shaped one creates a larger surface area shown in the video below:

YouTube video

How Do I Get Rid of Roaches in My Bathroom Naturally?

The most natural way of getting rid of cockroaches in your bathroom is to pour hot water down the drain.

Then, create a barrier for cockroaches to never enter through this area again. Mesh wiring underneath the drain cover will help.

Also make sure to seal all cracks around pipes, crevices or holes in the walls. Check under the sink and behind the toilet to make sure there are no openings where cockroaches can enter.

Here are some other solutions:

  • Pour baking soda and vinegar down the drain.
  • Create a sugar and baking soda bait in a container to kill them.
  • Use boric acid instead of baking soda for an even powerful bait mixed with sugar.
  • Use vinegar and boiling hot water to clear the drain.

Do Cockroaches Come Up Shower Drains?

Yes. Cockroaches live in sewage systems and make their way up shower drains very easily. They are flexible and durable to be able to fit through small cracks and crevices.

Drains and pipes are perfect entry points for cockroaches to enter your bathroom. This is why all shower drains, bathrooms, kitchen sinks and bathroom sinks should be covered with a mesh barrier to prevent any critters and pests from crawling up.

Does Pouring Bleach Down the Drain Stop Roaches?

Pouring bleach on a cockroach will definitely kill it. but do you want to release toxic fumes in a small space like your bathroom?

Wearing a mask may help, but inhaling any bleach fumes in your bathroom can create long-term respiratory damage.

  1. Instead of using bleach, run warm water down the drain pipe for at least 3 minutes.
  2. Then, pour 4 cups of boiling water down the drain.
  3. After that, use baking soda and vinegar to clean out the pipes. A half cup of baking soda can go down first followed by another half cup of white vinegar.
  4. Finish off with several more cups of boiling hot water.

Should I Flush a Cockroach Down the Toilet?

Flushing a cockroach down the toilet should only be done after you kill it. A dead cockroach has no chance of surviving, but a cockroach that is still breathing can hold its breath for up to 40 minutes.

Once it reaches the sewage system, it can continue on its journey of making its way through another pipe or back up into your bathroom once again.


The bathroom is an ideal space for cockroaches to thrive because it is warm, humid, moist and damp. Air out the bathroom and keep it as dry as possible.

Place boric acid or baking soda in containers with sugar to attract cockroaches and other insects to it. One sip and they will dry out from the inside. Pour vinegar, baking soda and hot water down the drain to clear them of nasty critters who wish to crawl up.

Add an extra barrier with a wire mesh under the drain cover, seal cracks, use window screens and these pesky cockroaches will never be able to get into your bathroom again.


Thanks for visiting for the best information to help you to make the pest control process easy, safe & affordable.