What Are These Tiny Black Bugs in House Near Window?


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When you notice small black specks on your window sill, you’ll likely assume it’s dirt, easily removable by cleaning.

However, the real surprise comes when you see the marks moving.

Tiny black bugs in house near window problem
Solution for tiny black bugs in house near window

After a closer look, you’ll know it isn’t dirt – rather, they’re tiny black bugs in house near window. 

Why Do Tiny Bugs Attack Your Home?

Bugs like creeping around windows.

Such bugs include ants, booklice, clover mites, springtails, and phorid flies.

Besides soiling your window, some bugs are a disease risk.

So, how do you get rid of them?

Before getting rid of the bugs, you must know why they target your home. This can help you prevent infestations.

Bugs attack home fix
Bugs attack home (reasons)

The two main factors why bugs target your home are:

  1. outdoor weather
  2. the light from your house

Bugs move towards your house when the weather becomes unbearable (too hot or cold). Some species attack in swarms to find a new place to infest.

Secondly, the light sources in your house tend to attract flying bugs. Since windows present the best entry to your home, these creatures usually target them.

Sometimes, bugs might attack your home if there’s overgrown vegetation in your compound.

For Example – If shrubs and thickets are too close to your windows, crawling bugs might climb up and reach your house.

How to Get Rid of Window Bugs

Here are effective methods of eliminating common tiny black bugs in house near window. 


Booklice aren’t naturally black – they’re mostly grey, brown, or translucent white.

Booklice pests in home

However, they appear black when they form clusters on moist window sills.

During summer, booklice search for moist places to live to escape the hot temperatures. It’s why they target moist window sills.

So you’re most likely to find them on bathroom, kitchen, and laundry room windows during the hot months. Sometimes, they might sneak into books or containers with grains.

Booklice are Harmless – They don’t carry pathogens and spread diseases. However, they can reproduce in large numbers if your home has several damp areas. 

The best way to eliminate booklice is to keep windows dry and free of cracks. If they are too many, use insecticides. 

Adult Carpet Beetles

Carpet beetles are tiny bugs with cylindrical bodies and short antennae.

They have a body shape similar to lady beetles, but many mistake them for bed bugs because they’re small.

Adult carpet beetles pests in home
Adult carpet beetles

Females lay eggs on carpets, furs, woolen fabric, and anything that has keratin. 

Carpet beetles infest your home because light attracts them.

After settling on your window sills, females will occasionally fly to find suitable areas for laying eggs and return.

Mature beetles will fly to your garden for food, while larvae remain indoors until they morph into adults. 

Like booklice, carpet beetles aren’t a disease risk because they don’t bite humans. However, their larvae damage carpets, woolen fabrics, silk, and pet hair. 

When you notice a carpet beetle on your window:

  1. destroy all eggs and larvae
  2. use a vacuum to kill the adults
  3. then, wash all-natural fabrics with soap and hot water

Phorid Flies

Also known as scuttle flies, phorid flies are bugs that prefer crawling to flying.

Although they appear harmless, these insects carry and transmit human diseases. For this reason, please avoid touching them with bare hands.

Phorid flies pests in home
Phorid flies

The most effective way of eliminating phorid flies is to maintain proper hygiene.

These bugs love decomposing matter and waste, so your home shouldn’t have dirty dishes, pet poo, and accumulated garbage.

Also, applying peppermint oil on your window sills helps to repel phorid flies. 

Next, you need to inspect your gutter. If they aren’t draining properly, they could be the source of moisture dripping on your window and attracting these bugs. 


Springtails are annoying little bugs that like staying in damp and moist places.

When it gets hot outside, they migrate to your home.

Springtails pests in home

The moisture condenses on glass windows is a key factor contributing to springtail infestations. 

Sometimes, springtails can attack you during the cold season. This mostly happens when the ambient temperatures drop below zero degrees. 

Besides your windows, springtails will also target other damp areas like the basement, bathroom, kitchen, and laundry room.

Although they are harmless, these bug attacks in swarms, which creates a nuisance.

To Get Rid of – Fix cracks on your windows and keep potential damp areas dry.

Clover Mites

Clover mites are the most common bugs that target window sills.

They belong to the same family as ticks and spiders, having eight legs.

However, unlike ticks and some spiders, clover mites are harmless and don’t carry or spread diseases. 

Clover mites pests in home
Clover mites

It’s easy to identify clover mites. Besides eight legs, the top two legs resemble a pair of antennae. 

Clover mites like the sun, so it’s common to find them on the south and west-facing windows. As such, the best way to get rid is to apply repellents on these windows.

If the infestations persist, use diatomaceous earth. Combine it with water and then spray it on window sills, cracks, and other gaps.


Ants are the easiest bugs to identify.

This is because they have three distinct body parts:

  • the head, which has two antennae
  • the thorax
  • and the abdomen

In addition, these bugs travel in groups, so when you see one, others are nearby. 

Ants attack homes when seeking shelter.

Ants pests in home

When they invade, they attack wooden structures, boring holes and establishing colonies where females lay eggs. 

You can only eliminate ants by destroying their nest. Despite the ease of recognizing ants, it isn’t easy to stop them.

If they attack your home, it’s advisable to seek professional help.

Wrapping Up

If bugs become uncontrollable, don’t hesitate to call an exterminator.

Besides eliminating the animals, they will identify why your home is susceptible to such infestations. They can detect the potential entry points and seal them.

Ultimately, the cure for bugs is prevention. Maintaining proper hygiene is the most effective way of keeping annoying creatures away.

Ensure you mow your lawns and trim any bushes close to your house. Don’t forget to drain stagnant pools and unclog your drainage systems.

Lastly, invest in anti-bug bulbs. This helps in keeping creatures attracted to light away from your home. Again, LED and vapor bulbs are the best choices. 

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