Does Bleach Kill Spiders?- Steps That You Can Use to Kill Spiders

Spiders are frightening, but not all of them are dangerous. Many of us, though, are afraid of them, so we prefer to keep them out. Spiders, like all insects and pests, are drawn to food and shelter sources. Other domestic insects such as flies, small roaches, beetles, and even centipedes are eaten by these crawling into our houses.

Except for a few species, they are not harmful. However, if you locate toxic spiders in your homes, such as the Black Widow or Brown Recluse, you should get rid of them right away.

Bleach has a wide range of applications. Because of its capacity to kill bacterial cells, it is classed as a pesticide and fungicide. Bleach can also be used to bleach whites, discolor-colored items, and neutralize anthrax. Unfortunately, the acid in bleach causes these side effects because it consumes everything in its path.

We’ll answer the question, “Does bleach kill spiders?” in this article.

What Attracts Spiders to Your Home?

What Attracts Spiders to Your Home

It will be much easier to choose the correct remedy to get rid of them if you can figure out what attracts them into your home. It will also assist you in taking the necessary precautions to keep spiders out of your home in the future. Spiders are attracted to a variety of things, including:

  • Cracks and crevices are certain to be found in every home. These cramped areas are ideal for them to take refuge and settle down. Spiders don’t dig tunnels into the walls; instead, they take over the hiding places that other pests and insects have built.
  • Gardens – Spiders feed on other little organisms, and a garden is teeming with pests and insects of all sizes. Pests are attracted to fruit and sweet vegetable gardens and orchards. In such lush flora, you’ll also find a swarm of spiders.
  • Garbage that has accumulated — Trash cans and mountains of garbage are ideal breeding sites for spiders. If you don’t dispose of your trash regularly, you’ll quickly find them all over the place.
  • Warmth – Spiders require warm and comfy environments in which to reproduce. They will settle down if they come across such a place in your house or garage. A warm, moist climate is good, but they will not thrive in a harsh environment.
  • Source of food- there is no reason for spiders not to enter your home if there is a sufficient food supply. Spiders will always be present in a home with a lot of insects and vermin. However, this is a positive thing; the spiders will assist you in ridding your home of pests!

Does bleach kill spiders?

does bleach kill spiders

Yes, bleach is used to kill spiders and a variety of other insects. The chemical suffocates and kills them as they breathe it in. Because bleach is quite acidic, it will burn the spider’s body if used in the solution. In addition, bleach contains acetic acid, which kills spiders as well as their webs. You may also use it to keep spiders out of your home by spraying it on the outside. To get rid of the spiders hiding in the dark and moist gutters and crevices, you’ll need to use bleach.

Steps that you can use to kill spiders using bleach

Steps that you can use to kill spiders using bleach

To use bleach to kill spiders, you’ll need the following items: Spray bottle with water and bleach, vacuum cleaner or broom

1st step

Make a 1:3 mixture of bleach and water. You can use them in equal parts as well. Fill a spray bottle halfway with the mixture. Make sure you give the mixture a good shake.

Step 2

Next, spray the spiders and their webs directly with the mixture from a distance of 5 – 10 inches. Spray according to the number of spiders and the severity of the infestation. Ensure that all spiders have died.

Step 3

After you’ve killed all of the spiders and destroyed their webs and eggs, you’ll need to clean up. First, clean the areas where the bleach is sprayed thoroughly. Then, ensure that all traces of the bleach mixture are removed.

Step 4

After wiping off the surfaces, vacuum all of them, including the flooring, to remove bleach and dead spiders. Ensure that you collect all of the rubbish and place it in the trash container. Touching the surfaces with your bare hands is not a good idea. Instead, take the appropriate precautions to prevent inhaling the bleach’s poisonous vapors.

When Using Bleach, Take These Precautions

When Using Bleach, Take These Precautions
  • Bleach is a harmful chemical that children should not use. When using bleach, you should avoid having children or pets in the house. It would be best if you also kept such cleaning supplies out of reach of children. We recommend that you keep the items under lock and key. Make a list of all the dangerous cleaners and label them to eliminate any confusion.
  • Making a mixture: Bleach and water can be used together, but never with other cleaning chemicals. Ammonia or another acidic component is found in most cleaning products. When bleach reacts with these substances, poisonous gases are released, which can be fatal. Also, ensure that you don’t use any other cleaning agents on the surface right before spraying bleach because they can combine with the bleach. Finally, it would be best if you never mix bleach with anything other than pure water.
  • Protection. Bleach emits chemical vapors, which are avoided. As a result, make sure to cover your eyes and nose with eye and nose protection. Before you start working with bleach, make sure you put on gloves because it will burn the sensitive skin of your hands and potentially cause bleeding if you don’t. Before spraying bleach, wear a mask and gloves.
  • Suffocation can occur if windows and doors are closed while spraying bleach.
  • Bleach can cause material damage by removing the color from some materials. It is something to keep in mind if you’re using it at home or to get rid of spiders in your car or another location.


Regarding whether bleach can kill spiders, the ability of bleach to suffocate spiders is a side effect, not a motive for using it against them. Before leaving your house or getting back into bed, spray diluted chlorine over the area where they are present and let it sit for at least five minutes. It gets rid of any crawling or wriggling pests that may have gotten into your house while you were sleeping! The alternative approach is to saturate their habitat with insecticides like pyrethrin, organophosphates, and propoxur, which poison arthropods.

All of the suggestions above will assist you in eliminating your spider problem. However, because bleach is a dangerous chemical, please take the necessary precautions to avoid harm. Before you decide to eliminate all spiders, keep in mind that most of them are harmless and will help reduce the insect population in your home. However, if you come across any harmful species, you must use bleach to eliminate them permanently.

To kill spider with bleach watch our this video from below;

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