4 Hidden Sources Of Carpet Beetles – Here’s How To Quickly Find Them

Finding the source of bugs is critical to get rid of them. If you don’t get rid of a bug’s source like a nest or colony in your home then no matter what you do, those bugs will be back again.

In the case of carpet beetles, it’s no different.

In this guide, you’ll find out the possible sources of carpet beetles. Those places are hard to find inside your home because they lie in the most unexpected places.

You’ll also learn how to eliminate the sources of carpet beetles and take steps to prevent a carpet beetle re-infestation.

If carpet beetles are reappearing despite trying everything, then this guide is all you need.

Keep reading.

Carpet Beetle Larvae – These Are The Ones That Cause Damage In Your Home

Sources of carpet beetle larvae in homes

Now before we get into anything, let’s make one thing very clear. The adult carpet beetles don’t cause the damage inside your home.

It’s the larvae of the carpet beetles that cause the damage. The larvae of carpet beetles will eat anything made from animal products.

So, things made of leather, silk, wool, fur, and even some natural fabrics like cotton are food for the carpet beetle larvae. 

Carpets and rugs made of wool, silk, or wool and silk blend are the go-to targets of carpet beetles. The animal protein known as keratin is present in animal products which carpet beetle larvae feed on. 

The carpet beetle larvae stay away from synthetic fibers. But if the synthetic fibers have food droppings or stains and hair on them, they’ll damage synthetic fibers too.

That’s not all about their diet. The carpet beetle larvae feed on many different things present at their source. 

You’ll find out about them in a minute, but for now let’s find out how the carpet beetle larvae appear in your home from nowhere.

How Carpet Beetle Larvae Appear In Your Home?

Adult carpet beetles, come in different colors. There are adult brown carpet beetle, black carpet beetles, and varied carpet beetle with spots too,

These carpet beetles will sneak inside your home through gaps and cracks on the walls, window sills and door frames.

Outdoors, the adult carpet beetles feed on pollen and nectar of flowers. These beetles are attracted to light.

So, the light from your home also draws them inside.

Inside your home, the adult carpet beetles will lay eggs on products made of animal matter.

So, including woolen or silk and wool blend carpets and expensive clothes made of silk, leather, fur, and even your taxidermies are ideal places for the carpet beetles to lay eggs.

The larvae hatching out of these eggs will feed on these products causing holes and damages on the places that they chew on.

The carpet beetle larvae are brownish-black tiny worm with hairy bristle on it’s back. It avoids light and you’ll find them mostly in dark places.

That’s what make things worse. These carpet beetle larvae can also be present in your wardrobe and closet if the adult ones could sneak in there to lay eggs.

Carpet beetle larvae are also known as bed worms. They can be in your bed if your bed has food stains and the bed sheet is made of natural fibers.

So, to locate the source carpet beetles in your home, it’s essential to find out the places where the adult carpet beetles lay their eggs.

The places inside your home where the adult carpet beetle lay their eggs are the main sources of carpet beetle larvae in your home.

So, what are those sources of carpet beetles?

Let’s find them out.

4 Sources Of Carpet Beetles In Your Home

Varied carpet beetle in home

The four primary sources of carpet beetles in homes are –

  1. Dead overwintering insects in places like your attic, basement, garage, and crawlspaces.
  2. Nests of rodents, birds, and bats in your property, especially in your chimney and roof shingles.
  3. Bugs’ nests and their larvae in the wall voids and floor voids.
  4. Kitchen pantry and kitchen cabinets.

All the above places are favorite places for the adult carpet beetles to lay their eggs. 


Let us explain.

These places are the breeding grounds for the carpet beetles. The adult carpet beetles will sneak inside or fly into these places and lay eggs.

And when the larvae of these beetles pupate into adults, you come across adult carpet beetles inside your home waiting to breed and lay more eggs.

Your attic, basement, garage, crawlspaces, and storage rooms are full of clutter, insects, and bugs.

Many bugs and even rodents sneak inside your home and hide in these places. 

During winters bugs like stink bugs, kissing bugs, cluster flies, and spiders will overwinter in these places till the arrival of spring.

So, without a doubt these places are full of dead insects. 

The adult carpet beetle will lay it’s eggs in these places because the carpet beetle larvae will feed on these dead insects.

Bat roosts, squirrel nests, and bird nests in your property are also food sources for the carpet beetle larvae. And the adult carpet beetle will lay eggs in these nests too.

The carpet beetle larvae will feed on the lint of broken hair and feces of these animals in their nests.

So, places like vents, AC units, ducts, chimneys, and roof shingles are the sources of carpet beetles because birds and many other small animals make their nests there.

In a birds’ nest the carpet beetle larvae will feed on the feathers, bird’s poop, and on even dead baby birds.

The larvae also feed on dry stored food products like grains, flour, cereals, and even dry dog food and pet food. 

The adult carpet beetle will lay eggs in your kitchen cabinets and pantry so that the larvae can feed on the stored food.

Many bugs like wasps, bees, roaches, ants, and termites build their nests and colonies in wall voids. And in many homes rats and mice can also nest in the voids.

The adult carpet beetles will lay eggs in the nests of these bugs in the wall voids and ceiling voids. 

The carpet beetle larvae will feed on the carcasses of bugs, rodents, and other insects that died in these wall voids. 

Some of the carpet beetle larvae may also come out of walls voids searching for alternative food sources. That’s the reason you’ll see carpet beetle larvae on the walls too.

These wall voids can be anywhere including in your bedroom and kitchen.

If your bed has food droppings, food stains, and hair then these will attract the carpet larvae to your bed too.

And that happens often. That’s why it’s not surprising that the carpet beetle larvae also fall in the category of bed worms. 

The hairy bristles on the carpet beetle larvae can cause skin irritation and allergic reactions in if they crawl onto you while you’re asleep.

How To Eliminate The Sources Of Carpet Beetles?

Spraying insecticide sprays like Raid on carpet beetles works to get rid of them.

But it’s a half-baked approach. It’ll not get rid of carpet beetles entirely.

It’s because you’re not getting rid of the sources of carpet beetles.

And to get rid of carpet beetles’ source you’d need to do some due diligence at your end.

Here’s how to get rid of the source of carpet beetles –

#1 – Clean The Places Where Carpet Beetles Lay Eggs

When it’s about getting rid of carpet beetles in your home from it’s source, there’s no short cut to thorough cleaning.

And cleaning the places like attics, basements, and garages that receive less natural light is essential. 

So, thoroughly clean those places and ensure that your get rid of all the clutter in these places.

The more the clutter, the more the hiding places for bugs, especially for spiders like the brown recluse spider and the black widow spider.

And if there are spiders, means there are other bugs in these places that the spiders are hunting.

In your kitchen, clean the droppings of dry stored food in the kitchen cabinets and the kitchen pantry. 

Ensure that all the dry food is stored in thick airtight jars and tightly packed. The adult carpet beetles and other pantry pests can’t chew through or sneak inside them.

If you find dry food infested by the larvae then put the damaged food in a plastic bag and dispose of them.

Vacuum clean the carpets and rugs to remove any carpet beetle eggs and larvae. You can also use a steam cleaner to do the job.

Steam cleaners are more effective than vacuum cleaners to get rid of bugs like fleas, bed bugs, and beetle larvae in soft furnishings. 

The heat from the steam cleaners kills the larvae, adults, and destroys the eggs of these bugs.

#2 – Seal Gaps And Crevices In The Walls Of Your Home

The adult carpet beetles not just fly inside your home. They can also sneak through the gaps and cracks.

Seal those gaps and cracks in the walls, window sills, door frames, and floors. 

It’d be best to use a silicone-based sealants to caulk these gaps as bugs can’t chew through silicone-based sealants.

Also, installing bug-repelling light bulbs and bug zappers will prevent these adult carpet beetles from flying into your home.

#3 – Use Shields With Fine Mesh On Ducts And Vents

Shields with fine meshes are necessary to prevent all sorts of bugs and rodents to sneak inside your home.

Do not shy away from covering the ducts, openings, and vents of your home with robust shields with dense meshes.

It’ll stop the carpet beetles and rodents from entering your home through those places.

Also, install window shields during the spring months. 

From spring till late summer, many bugs, including damaging pests like flying termites and flying ants, are active.

If there’s a chimney in your home, then use a screened chimney cap. That’ll also deny carpet beetles from sneaking inside your home through the chimneys.

#4 – Remove Dead Bugs And Rodents From Your Home

Dead rodents and bugs are food for the carpet beetle larvae. And the adult beetle will lay eggs on the carcasses.

So, check the places in your home where you don’t go often for any dead bugs and rodents.

If there’s a dead mouse, rat, and squirrel in these places, you’ll smell a nasty stench from their carcasses.

Clean the place of any bug feces and rat smear marks with a disinfectant after you remove the dead bugs and rodents.

#5 – Remove Birds’ Nests From Your Property

Birds’ nests are great to look at and many homeowners think twice before removing their nests.

But birds’ nests are a host to not just carpet beetles but also many other types of biting bugs like bird mites and swallow bugs

You don’t want these bugs in your home and give you itchy and sleepless nights.

So, get rid of birds’ nests especially when the nests are in your compound, chimney, and inside ducts and vents.

After removing the nests wash the place with a disinfectant to clean the place. It’ll be best to spray an insecticide spray on these places too.

It’ll kill all the bird mites and beetle larvae that you may leave behind after removing the nests.


The four sources of carpet beetles in your home are –

  • Dead overwintering insects in places like your attic, basement, garage, and crawlspaces.
  • Nests of rodents, birds, and bats in your property, especially in your chimney and roof shingles.
  • Bugs’ nests and their larvae in the wall voids and floor voids.
  • Kitchen pantry and kitchen cabinets.

These sources of carpet beetles in your home lies in places where other bugs and animals can hide.

So, places like wall voids, attic, storage, chimney, crawlspaces, garage, basement, ducts, and vents are all the possible of carpet beetles in your home.

These places are the home of many bugs, birds, and rodents that provide enough food for the carpet beetle larvae to eat and mature into an adult carpet beetle.

So, to get rid of carpet beetles in your home it’s essential to get rid of these beetle’s sources. 

Else they’ll reappear, multiply again, and cause damage inside your home. 

Hire a professional pest control to do the job if you’re find it hard to get rid of them or if the carpet beetle infestation is severe.