9 Classic Ways to Naturally Kill Roaches in the Drain

You don’t want to be sharing your kitchen and bathroom with courteous bugs. Oh yes, not having to live with roaches is possible, even if they are one of the most prevalent pests. Still, there’s no need to search far and wide for a natural solution to eradicate roaches coming up the drain. If you’re terrified to use a toxic insect repellant, that’s okay. These nine methods for naturally killing roaches in the drain are ones that I have personally tested. So, with no further ado, Let’s dive right in and start getting rid of those pesky bugs once and for all.


  1. Why Do Roaches Come Up Through the Drain?
  2. Steps to Take Before Treating the Drain
  3. Using Vinegar to Deter Roaches
  4. Using Clorox Bleach
  5. Using Camphor Powder
  6. Baking Soda
  7. Cedar oil
  8. Cleaning Tips to Keep Roaches at Bay
  9. Other Tips and Tricks to Keep Roaches Away

1. Why Do Roaches Come Up Through the Drain?

So, why are roaches coming up through the drain? They are searching for food. Roaches love to live in moist dark areas, which is the perfect description. The drain is a good hiding place for these pests, as it provides a good breeding ground, food, and shelter. Roaches are crawlers so as long as there is an opening, they will find a way out and that’s in your home.

Maintaining clean drains is essential to keeping roaches out. However, how can one naturally maintain a clear drain? Chemicals can be poured down the drain at night to keep it clean. The tips and techniques listed below will permanently eradicate the roaches in your drain.


2. Steps to Take Before Treating the Drain:

  • Bathroom Rain: Use a grabber to pull out the residue, then run the tap on hot water for 2 minutes.
  • Kitchen Sink Drain: Run the tap on hot water for 5 minutes.
  • Garbage Disposal: Turn it on for 1 minute with the tap running.


 3. Kill Roaches in the Drain with Vinegar:

Can you pour vinegar down the drain for roaches? Yes, distilled vinegar can be poured down the drain. Roaches hate any smell that is not foody. To use vinegar to repel roaches, follow the instructions below.

  1. Make sure there is no food in the drain
  2. Pour 1/4 cup of distilled vinegar down the drain.
  3. The acidic taste and smell will deter the roaches and stop them from coming up the drain

4. Using Clorox Bleach to Kill Roaches in the Drain

Not only is bleach a repellant but it also kills roaches, including eggs. Simply pour one cork full of bleach into the drain before going to bed. Repeat the process every other night. This is a sure way to stop the roaches from entering your home through the drain. This can be used in the kitchen and bathroom drains.


5. Camphor Powder:

In ancient days, camphor was known for repelling roaches. This came in a ball form and was placed in clothes closets and under sinks. Cockroaches are not only deterred by camphor’s ability to repel them, but it also interferes with their sensory receptors. 

Simply pour 1 tablespoon of camphor powder down the drain twice per week. Camphor powder is dissolvable so it won’t block the drain. Continue using your tap as usual and rest assured, no roach will be able to navigate through that concussion. This is available on Amazon.com.

Warning! Keeping out of reach of children and pets. Must not be swallowed. Store it away from food.


6. Baking Soda:

Roaches hate the taste of baking soda, which makes it great for repelling and killing roaches. The digestive system of roaches is not designed to handle acidic food. And, as you know, baking soda is highly acidic so because roaches are involuntary eaters, they will have to eat it if it is in their path. This simply means adios for them.

Simply pour 2 tablespoons of baking soda down all the drains in your home at night. Continue doing this as you see it necessary and keep a close watch for roaches by just occasionally visiting the kitchen throughout the night.


7. Cedar Oil

Cedar oil comes from the cedar tree and as we all know, it has an unforgettable smell. This peculiar smell deters roaches and stops them in their tracks. To use this oil to keep roaches away, follow this method.

  • Pour 1 tablespoon of cedar essential oil down the drain regularly. Make this a constant habit, as even though you don’t see the roaches, they are always hiding out somewhere so stay a step ahead of them.
  • Sprinkle a few drops of cedar oil on a cleaning cloth and wipe underneath the sink once a week.
  • Other oils that repel roaches are peppermint and cypress oil.


8. Don’t Feed the Roaches:

Roaches don’t linger where there is no food. The reason they come in is to find food and most times they are following their sensory receptors. Here are a few tips that’ll make roaches hate visiting your home:

  • If the trash bin has degradable food in it, it should be emptied before bed. After doing this, mist the bin with a household cleaner like Fabuloso or Clorox bleach cleaner before placing it in a new trash bag.
  • Clean the countertops at night to remove sugar substances and food particles.
  • Clean the floors by mopping and sweeping every night
  • Don’t leave dirty dishes in the sink overnight
  • Ensure the stovetop is clean
  • Use a sink stopper to plug the sink at nights


9. Clear Clutter to Prevent Roaches

Check underneath the sink to make sure there are no leaks or rotten boards. At least once per week, use a mixture of bleach and water to clean underneath your sink’s counter.

Pack and organize bottles and containers underneath the counter. Doing this will help in reducing clutter, thereby causing roaches to be less interested.


The Take Way:

We can never totally get rid of roaches but if we practice good cleaning practices and use the proper repellants, roaches will stay out. Using baking soda, bleach, vinegar, cedar oil, or camphor powder is an all-natural way to kill or repel roaches. So, if you prefer not to use commercially produced roach killers, any of the abovementioned repellants will work. Remember, keeping drains and your home clean is the best way to get rid of roaches naturally.

We surely hope these tips were helpful. See you soon!

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