8 Tiny Black Bugs In Houses Near Windows – One Of Them Can Destroy Your Home

Bugs can sneak inside your home through the doors and windows even if they’re not open.

These bugs fly or crawl inside through the cracks and gaps on the windows and the window sill.

You’ll find them hovering around the window screen, or you’d notice slow-moving bugs on the window sill and the window frame.

So, what are these bugs? And how to identify them? You’ll find it all here.

In this guide, you’ll find out the common tiny black bugs in houses near windows. 

Some of these bugs bring infestation risk, some are a nuisance, and some even bite.

You’ll also find out ways to stop them and get rid of them inside your home.

And a whole lot more!

Keep reading. 

What Makes Tiny Bugs Enter Homes Through The Windows

Tiny black bugs in houses near windows

Before we reveal the tiny black bugs in homes around your windows, you need to know why these small bugs enter your home.

What brings them in?

Well, there can be many reasons for that. 

But the most important reasons are two – the weather outdoors, and light from your home.

Most of these bugs that invade homes want to escape the weather outside. The weather gets inclement for them.

Different bugs prefer different types of weather to live.

So, if the weather gets too hot, too cold, or it’s too wet outside, bugs will get inside your home to take shelter.

The light from your home’s light bulbs is also a major attractor to these bugs, especially those that fly.

Light attracts these nuisance bugs and bugs that have the potential to cause major damage to your home.

You’ll find out about them in a minute, but for now, keep in mind that the source of light in your home can draw the bugs in your home.

Another reason that you may overlook is the vegetation bordering the home’s perimeter.

This vegetation, when they overgrow, rises to the height of the window base and window sill.

Bugs will use these overgrown bushes and plants touching the windows as a means to enter your home. 

Do you know that there are bugs that can use your home’s gutters to invade your home?

Well, yes, there are!

And the following sections of this post reveal it all. 

8 Most Common Tiny Black Bugs In Houses Near Windows

Now that you know the reasons for tiny black bugs sneaking inside your home, it’s time to know what these bugs are. 

And what they look like.

Let’s dive in.

#1 – Carpenter Ants – The Most Common Tiny Black Bug You’ll Find Near Windows

Carpenter ants - Tiny black bugs in houses near windows

No home in this world is stranger to ants, including your home.

If there’s any bug that uses the windows, the gaps on the windows, to crawl inside your home, it’s the carpenter ants.

Carpenter ants are black and move briskly. 

So, why is it common to see them near windows and on the window sills?

There are three reasons for it.

The first is when they’re invading your home. 

Carpenter ants are quite common in human dwellings. Your home has all the ingredients that can sustain them. 

Protein-rich human food, sugar, and moisture are what these ants need to thrive. 

The second reason is that they’re laying eggs inside the window sills and window frame.

Yes, carpenter ants damage the wood. But not like termites. 

Carpenter ants don’t eat wood as termites do. But they’d drill inside the wood to lay their eggs.

And the wood on the window sill and window frame is perfect for them, especially when it’s moist for reasons like rain or water leakage.

The third reason is when the weather outside becomes too hot or too wet.

Although dampness is what these ants need to survive, if rains flood their nests outdoors, they’ll surely sneak inside your home to look out for a dry place to live.

Also, carpenter ants look cooler and temperate places to hide when the weather outside becomes too hot for them.

Carpenter ants either crawl up to the windows, or they’ll use the overgrown bushes as a way to sneak inside your home.

They even live in the clogged gutters of your roof. 

So, they can enter your home from the gutters by exploiting the gaps and cracks that the walls develop over time. 

Carpenter ants move in a line. So, you may also notice a string of carpenter ants getting inside your home through the windows.

#2 – Springtails – The Tiny Black Jumping Bug In Homes Near Windows

Springtails - tiny black bugs in houses near windows

Springtails are nuisance bugs. They are active throughout the year, and they’re always on the lookout for moist and damp places to live.

That’s why they get inside your home during the summer months seeking a moist place to live.

Springtails can get inside your home even in the winter months, too, especially when the temperatures drop sharply.

Outdoors, springtails live in moist places. 

So, places like mulch beds, organic debris like foliage, wet firewood piles in the yard, and even damp soil beds of plants pots are living places of springtails.

As usual, they’ll use the overgrown bushes to get inside your home.

They’ll also hop into your home through crawl space openings and open doors and windows.

Once inside your home, springtails will look for temperate and damp places to hide. 

So, the most obvious hiding places for springtails inside a home are the bathroom, kitchen, basement, and laundry room. 

These places are damp by nature. And if there are water leakages in these areas of your home, then it’s a perfect place for them to hide.

You’d notice springtails during evening hours near the windows. 

The light from your home attracts the springtails too. So, they try to get inside your home through the windows.

If the windows are closed, then you’ll observe them tirelessly jumping on the window screens. 

If there are cracks and gaps on the window sills or the window frame, springtails will exploit those gaps to get inside your home. 

Springtails don’t bite, but as they can get inside your home in large numbers, especially during summers, these bugs can be a big nuisance.

These bugs can also land in your swimming pool.

#3 – Adult Carpet Beetles – The Tiny Black Bug Near Windows That Wants To Lay Eggs In Your Home

Carpet beetle - Tiny black bugs in house near windows

Adult carpet beetles are one of the tiny black beetles that invade homes.

These beetles have brown and white stripes or spots on them when they’re young.

As they age, they lose those spots and turn black or dark brown.

Adult carpet beetles are both pantry pests and fabric pests. They invade homes to lay their eggs on stored food and on natural fabrics like wool, silk, fur, and leather.

The larvae of the carpet beetles are the damaging pests. They damage stored food and expensive fabrics made of animal matter.

If you’ve got a thriving garden with lots of beautiful flowers, then there’s a sure chance of the presence of adult carpet beetles.

In the spring, these beetles are active and they lay their eggs. Outdoors, adult carpet beetles feed on the pollen and petals of the flowers.

Like the last two bugs, the adult carpet beetles are attracted to light too. These beetles are strong fliers and they sneak inside homes through open doors and windows.

Cracks on the walls and on the window and door frames are also entry points for adult carpet beetles.

Adult carpet beetles will get inside your home through open doors and windows.

Attract by the leather upholstery and seats inside the car, these tiny black beetles can also sneak inside cars to lay their eggs.

The carpet beetle larvae, small blackish worm with yellowish patches and hairy bristles, is a damaging pest.

It feeds on your stored food in the kitchen pantry. Their presence in the stored food make it stale.

If there are too many of them, they can also contaminate the food.

The carpet beetle larvae also feeds on the natural fabrics like leather, fur, wool, and silk. They’ll chew on the different places in the fabric.

Their chewing create holes on the fabric which in many cases is an irreparable damage.

Presence of these natural fabrics can also draw the larvae to your closet. And hence, they fall into the category of closet bugs too.

Dirty clothes and linen also draw the carpet beetle larvae. Clothes with food stains also entice the adult carpet beetle to lay eggs on them.

Food stains and food crumbs on your bed can also draw the carpet beetle larvae to your bed.

The carpet beetle larvae is one of those bed worms that gets onto your bed to feed on the stain marks and greasy spots on the bedsheet.

So, how do these carpet beetles enter homes?

Like the last two bugs, the adult carpet beetles are attracted to light too. These beetles are strong fliers and they sneak inside homes through open doors and windows.

Cracks on the walls and on the window and door frames are also entry points for adult carpet beetles.

In the spring and summer months, you’ll notice these tiny black bugs trying to get inside your house.

Drawn by the light from your house or in your patio deck, these beetles will flock on the windows trying desperately to make their way inside your home.

Later in the post you’ll learn how to stop these tiny black bugs from invading your home.

For now, let’s get into the most damaging tiny black bug that is a real threat to your home – the winged termites.

#4 – Winged Termites – The Threat To Your Homes That Enters Through The Windows

Winged termites - tiny black bugs in houses near windows

Till now, you’ve been finding bugs that are either nuisance or not that damaging.

But do you know that termites that cause more damage worth more than $3 billion in a year enter homes through windows too?

And if you had a termite infestation in your home, we’re sure that you must have had sightings of winged termites on the window sills.

Winged termites are known as alates. Alates are the reproductive termites that leave their current colonies to mate and find a new home to invade.

These winged termites move in swarms. Attracted by the light, they enter homes through open doors and windows. 

Once inside a home, these winged termites mate, lose their wings and drill into the structures to start a new colony.

And the result is a massive termite infestation.

You’ll find these tiny black-winged termites on window sills. If the windows are closed, you will notice them swarming around the window screen outside. 

It happens mostly during the sunset when the light from your home attracts these termites.

You’ll find these winged termites crawling on the window screens and the window sills. 

You’ll also notice broken wings of these termites near the windows. 

Dead winged termites near the windows and inside the home are signs of termite infestation that’s already inside your home. 

Or as a precursor to a possible termite infestation!

#5 – Gnats – Biting Tiny Black Flying Bugs In Homes Near Windows

Fungus gnats - tiny black bugs in houses near windows

From May to June, gnats can become a nuisance to homes, especially during dusk. 

Like the springtails, gnats also live in moist organic debris. They lay eggs on the soil beds of potted plants. 

Gnats are tiny and black, resembling mosquitoes to an extent, and they bite too.

Sightings of gnats near windows are pretty common in the gnats months when they try to get inside homes.

Excessive dryness outside drives these tiny black flying bugs inside homes while they’re searching for a more temperate place to live. 

You can also transfer gnats inside your home accidentally. When you bring any potted plants inside your home, you can introduce gnats hiding in the plant or plant soil bed.

There’s also one often ignored reason for gnats on windows and window sills.

Old window sills and window frames can be a nesting ground for gnats.


It’s because old pieces of wood when high in moisture, rot. That moist rotting window becomes an ideal place for the gnats to lay eggs.

The moisture inside the wood also causes molds on the wood of the window sill. And gnats eat these molds.

#6 – Drain Flies – Tiny Black Flying Bugs In Homes Gathering On The Windows

drain fly on windows

Drain flies are perhaps the most annoying bunch of flies that you can ever have inside your home.

How do they get inside your home?

Well, ironically, they are more likely to get inside your home from the “inside” than from the outside. 


Drain flies, known as sewer flies, emerge out of clogged drains from your kitchen, bathroom, and basement in your home. 

These flies are nuisance bugs, and their numbers quickly go over the roof.

Failing to take necessary measures can cause these flies to get into electronic appliances like refrigerators and dishwashers.

Drain flies prefer damp places to live. So, bathroom, kitchen, basement, and laundry rooms are the areas of your home where drain flies will hide.

When the number of drain flies inside your home increases, it becomes quite common to see these bugs gathering on the windows.

Not only that. It’s also common to see these nuisance bugs in bathtubs and sinks.

Drain flies are weak fliers. They’d jump from one place to another most of the time.

Outdoors, drain flies will live on rotting damp organic wastes. They’re also quite common in places where there’s water leakage. 

Places like catch basins and damaged sewer lines are also the places where drain flies live and breed.

#7 – Rice Weevils – The Tiny Pantry Pest That Enters Houses From Windows

Little bugs in flour and rice - weevils

Rice weevils are pantry pests. They enter homes to invade your kitchen pantry.

They’ll eat stored food and grains like rice, cereals, fruits, and nuts. 

Rice weevils will also lay eggs inside the stored food containers if they can get inside them. 

The larvae of the rice weevils feed on the food they’re born into, and they also discard their feces on the stored food.

Common signs of rice weevil larvae infestation in stored food include a faint yet distinctive stench and white lumps, which are the feces of the rice weevil larvae.

Rice weevils are reddish-brown to black. And they’re tiny, measuring up to 1/10th of an inch.

On observing, you’d notice a snout-like beak on their mouth, a distinctive feature of rice weevils.

Rice weevils fly into homes through open doors and windows. They’re also effective crawlers.

They can easily crawl inside your home through the cracks and tiny gaps on the windows, doors, and walls.

Rice weevils are also attracted to light. And they’re also attracted to the scent of food and grains.

It’s also common to bring in rice weevils home from the grocery market. Grain houses and warehouses storing grains can have rice weevils inside the packaged grains.

Rice weevils can chew through the thin plastic packaging of food products and the thin walls of food storage containers.

Rice moths are also one of the pantry pests that can fly through the windows. But they aren’t black.

Rice moths are brownish and their size is pretty significant to notice.

That’s why it’s always best to store food in thick airtight food storage jars in your kitchen

#8 – Clover Mites – The Tiniest Bug You’ll See Near Windows Of Your Home

Clover mites on window

Now clover mites are the tiniest yet most often overlooked bug that sneaks inside your home through the windows.

These are so tiny that you’ll confuse them with specks of dust. 

Their size is as big or as small as the period at the end of this sentence.

To see them clearly, you’d need a magnifying glass. To the naked eye, clover mites look like tiny black unmoving particles of dust.

But under a magnifying glass you’ll find clover mites are reddish.

Clover mites show up on the windows before entering your home. You’d notice them gathered in large numbers on your window sills.

They’ll sneak inside your home through the thinnest and the tiniest of gaps on the windows.

And once they’re inside your home, they’ll multiply fast. 

Clover mites can get on your bed, too, giving you the impression that there are bed bugs in your bed.

They become a big nuisance when you start to see them everywhere in your home, including on the walls.

So, where do these clover mites come from?

Clover mites live in grass lawns, and they’re quite common in soil beds with excessive fertilizers. 

That’s why they’re quite common in lush gardens and yards.

Outdoors, clover mites will feed on grasses, clovers, and tiny plants. 

When their numbers outdoors increase, which leads to a strain in the food sources, or when the weather outside gets too hot or cold, clover mites look for a new place to hide.

That’s when clover mites start to move inside your home. 

The clover mites are harmless bugs. Despite being tiny nuisance bugs, they don’t bite. 

But people allergic to dust can get serious allergic symptoms because of the clover mite’s presence inside the home.

How To Stop Tiny Black Bugs From Entering Your Home Through The Windows

Now that you know eight tiny bugs that sneak inside your home through windows, it’s time to find out how to stop them from entering.

Here are the eight steps to follow –

#1 – Keep Your Yard Or Garden Clean

As you know by now, the source of most of these bugs is in your yard or garden. 

And if your yard or garden has organic debris and dampness, then these bugs will indeed thrive there.

So, the first step is to keep your yard and garden clean. 

Ensure that there are no piles of rotting wood or leaves in your yard. If there’s any, get rid of them.

Also, check the trash bins. Are there piles of garbage inside the trash bins?

If there is, then get rid of the garbage in the trash bins too.

Neglected trash bins with waste lying in them for days is a home for flies and cockroaches too. 

Flies will lay eggs in the trash bins. That leads to maggots in the trash bins, attracting insects and bugs that eat them.

So, it’d be best to clean the trash bins with a disinfectant after you dispose of the garbage.

#2 – Fix Water Leakages To Control The Dampness

Fix water leakages. Water leakages increase the dampness of your yard, home’s walls, and home’s foundation.

This increase in dampness will make your yard and home an ideal place for the bugs to live. 

As you know by now, moisture attract bugs, especially the ones that are in this guide.

If there are any waterholes, fill them up. It’d be best if you use sand to fill them up.

#3 – Keep The Drains Clean And Unchoked

Leaking and clogged drains attract bugs. And all these tiny bugs that sneak inside your home through the windows are no exception. 

Keeping the drains clean and unchoked, and fixing any leakages on them, goes a long way to keep your home bug-free.

This is a great way to control drain flies.

Also, if there’s a catch basin in your property, keep it clean too. 

A dirty and choked catch basin is home to cockroaches and mosquitoes.

#4 – Trim Overgrown Bushes And Get Rid Of Vegetation Around Your Home’s Perimeter

Overgrown bushes and vegetation act like a bridge for these bugs to climb to the windows and sneak in.

That’s why it’s always a wise decision not to let them grow too much, up to the height of the window’s base, especially when the vegetation is around your home’s perimeter.

So, uproot the unnecessary vegetation and trim the ones that you’d like to keep.

It’ll certainly help in stopping clover mites and springtails from entering your home through the windows.

#5 – Don’t Overuse Fertilizers And Don’t Overwater Your Yard

High fertilizer content in the soil attracts clover mites. And overwatering your yard or garden makes it damp.

A damp garden and yard are always a great habitat for all sorts of bugs.

So, use water and fertilizer more than what’s necessary.

#6 – Seal The Cracks On The Walls, Window Sills, Windows Frames, And Doors

These tiny gaps and crevices are entry points for bugs. 

Seal them off with a quality sealant. It’d be best if you use silicone-based sealant to do the job.

Silicone-based sealants are robust, bugs can’t chew through them, and they last at least for a decade.

#7 – Use Weather Strippings On The Doors And Windows

Weather stripping on the doors and windows closes the gaps present by design on the doors and windows.

For example, the gap between the lower edge of the door and floor is wide enough to let these tiny bugs enter your home. The same is the case with gaps between the window panels and the window frames.

Weather stripping seals those gaps and stops these tiny bugs from entering your home.

#8 – Use Anti Bug Bulbs

This step is critical. 

Most of the bugs in the list are attracted to light. 

As you can’t live in your home in the dark to stop these bugs from entering your home, so it’s a wise decision to install lights that don’t attract bugs.

LED bulbs and vapor bulbs don’t attract bugs.

You don’t have to change the entire lighting of your home. Just install them in places like your patio, garden, and near the windows facing your yard or garden.

That’ll do.


To summarize, here are the eight tiny black bugs in houses near windows that use the windows of your home to get inside.

  1. Carpenter ants
  2. Springtails
  3. Adult carpet beetles
  4. Winged termites
  5. Gnats
  6. Drain flies
  7. Rice weevils
  8. Clover mites

You’ve also found an 8-step process to stop these bugs from entering your home through the windows.

To know more about tiny white bugs that can enter your home, check our post on tiny white bugs that look like dust.