How to Get Rid of Carpet Beetles (and the Larvae) for Good

Quick answer: To get rid of carpet beetles, target the larvae, not the adults. Find where they feed (closets, rug edges, under furniture, vents), vacuum those spots thoroughly and empty the vacuum outside, wash infested fabrics in hot water or dry them on high heat, freeze or dry-clean items you can’t wash, and store wool and silk in airtight containers. Plan on repeating the vacuuming for several weeks.

Knowing how to get rid of carpet beetles starts with a surprise: the tiny beetles you see on windowsills aren’t doing the damage. Their fuzzy, striped larvae are, and they hide in dark, undisturbed places, eating wool, fur, feathers, pet hair and lint.

The good news is that carpet beetles don’t bite, don’t carry disease and respond well to thorough cleaning. This guide is based on advice from university extension entomologists and covers identification, a step-by-step cleanup and prevention.

What are carpet beetles, and what causes them?

Carpet beetles are small, round beetles, about 1/16 to 1/8 inch long. The three most common in U.S. homes are the varied carpet beetle (mottled white, brown and yellow), the black carpet beetle (shiny black or dark brown) and the furniture carpet beetle.

Adults feed on flower pollen outdoors. In spring and early summer they fly in through open windows, doors and gaps, or ride in on cut flowers. Females then look for a dark spot with food for their young and lay eggs there.

The larvae are the problem. They’re about 1/4 inch long, carrot-shaped or oval, and covered in bristly hairs. Depending on the species and temperature, they can keep feeding for several months to more than a year. They eat animal-based materials that contain keratin:

• Wool rugs, carpets, sweaters, blankets and felt
• Silk, fur, feathers, down pillows and leather
• Pet hair, human hair, lint and dust buildup
• Dead insects in light fixtures, window tracks and attics
• Stored foods like cereal, flour, spices and pet food (some species)

Common hidden sources include old bird or rodent nests in the attic, wool-blend rugs under heavy furniture, piano felts, stored holiday blankets and the back corners of closets that rarely get vacuumed.

Signs of carpet beetles

• Shed larval skins. Light brown, hollow, bristly casings are often the first clue, especially in closets and along baseboards.
• Irregular holes in fabric. Damage tends to be in one area, often hidden spots like under collars, folds and rug edges.
• Bare patches in rugs along walls or under furniture.
• Tiny adult beetles on windowsills, since adults are drawn to light.
• Itchy red bumps. Some people react to the bristly larval hairs. It’s not a bite. If you have a rash, see a doctor or dermatologist.

Carpet beetle vs bed bug: how to tell them apart

	Carpet beetle	Bed bug
Size and shape	Adult 1/16–1/8 in, round, like a tiny ladybug	About 1/4 in, flat, oval, apple-seed shaped
Color	Mottled white, brown and yellow, or black	Reddish brown, redder after feeding
Larvae	Fuzzy, striped, bristly	Look like small, pale adults
Bites?	No (larval hairs can irritate skin)	Yes, feeds on blood at night
Where you find them	Closets, rugs, windowsills, vents, under furniture	Mattress seams, box spring, bed frame, headboard
Telltale signs	Shed skins, holes in wool, bare rug patches	Rusty or dark spots on sheets, eggs, live bugs in seams

If what you’re finding looks more like a bed bug, follow our guide on how to get rid of bed bugs instead. The treatment is very different.

How to get rid of carpet beetles: step by step

1. Find the source. Grab a flashlight and check closets (floor corners, shelves, stored bins), wool rugs (flip the edges), under beds and sofas, heating vents and cold-air returns, baseboards, window tracks, light fixtures and the pantry. Look for shed skins and live larvae. There’s often one main source.
2. Get rid of heavily damaged items. Bag badly infested items that aren’t worth saving in plastic, seal them and put them in the outdoor trash. Toss infested pantry foods too.
3. Vacuum thoroughly, especially the edges. Vacuum carpets, rugs (both sides if you can), under furniture, along baseboards, closet floors and shelves, upholstery and vents. Use the crevice tool along edges, where larvae hide. A HEPA vacuum keeps fine debris from blowing back out.
4. Empty the vacuum outside right away. Larvae and eggs can survive in the canister or bag. Empty it into a sealed plastic bag and put it in the outdoor trash after every session.
5. Launder everything washable in hot water. Wash clothing, bedding and throws in hot water, then dry on high heat for at least 30 minutes. Heat kills all life stages. Check care labels first.
6. Freeze or dry-clean what you can’t wash. Put wool sweaters, stuffed toys, furs or small rugs in a sealed plastic bag and leave them in a freezer at 0°F or colder for at least 72 hours. Many extension guides suggest up to two weeks to be safe. Let items warm up in the bag so condensation doesn’t form on them. Dry cleaning also kills all stages.
7. Steam-clean rug edges and upholstery. A canister steam cleaner with a nozzle attachment kills larvae and eggs on contact in carpet edges, upholstery seams and under cushions. Test a hidden spot first, and don’t soak wool or delicate fabrics.
8. Clean closets top to bottom. Empty the closet, vacuum shelves, corners and cracks, wipe surfaces and let everything dry before putting clean items back in sealed containers.
9. Monitor for 4 to 6 weeks. Place sticky traps in closets and along baseboards where you found larvae. Check them weekly. Keep vacuuming problem areas at least once a week.
10. Consider a targeted insecticide for heavy infestations. If larvae keep turning up, a residual product labeled for carpet beetles can be applied to carpet edges, baseboards and cracks. Never spray clothing or bedding unless the label says it’s allowed.

Steam cleaners reach well over 200°F: keep kids and pets out of the room, never point the nozzle at people, pets or electrical outlets, and let surfaces cool before touching. If you use an insecticide, follow the label exactly, wear gloves, ventilate, keep children and pets away until it’s dry, and never apply it to bedding, clothing or food areas unless the label allows it. Mothballs (naphthalene or paradichlorobenzene) are toxic and only work in airtight containers per the label; never scatter them in closets or living spaces.

Do carpet beetle traps work?

Sticky traps and pheromone traps are good for monitoring, not for curing an infestation. Pheromone traps attract adult males, and sticky traps catch wandering larvae and adults. Neither reaches larvae feeding in a rug or closet. Use them to find hot spots and to confirm your cleanup is working.

What about cedar, vinegar and diatomaceous earth?

Cedar has only a mild effect, and it fades as the wood ages. It won’t kill larvae already present. Vinegar is fine for cleaning surfaces but doesn’t treat an infestation. Food-grade diatomaceous earth can help in cracks and along baseboards, but apply a very light dusting and avoid breathing it in. Thorough vacuuming and heat or cold treatments do far more.

The equipment that helps

You don’t need much. A good vacuum does most of the work, heat handles what the vacuum can’t reach, and traps tell you when you’re done.

For more vacuum options, see our picks for the best HEPA vacuum for allergies. For more steam cleaners, check our guide to the best steam cleaner for bed bugs, since the same heat principles apply. Our Shark Navigator NV360 review and McCulloch MC1375 review go deeper on each tool.

How to keep carpet beetles from coming back

• Vacuum regularly, including under furniture, closet floors and rug edges. Larvae need undisturbed spots.
• Clean before you store. Wash or dry-clean wool, silk and down before putting them away for the season. Body oils and food stains attract larvae.
• Store in airtight containers. Use sealed plastic bins or zippered garment bags, not cardboard boxes.
• Check flowers and secondhand items. Shake out cut flowers outdoors and inspect used rugs, furniture and vintage clothing before bringing them in.
• Seal entry points. Repair window screens and add weatherstripping to keep adults out in spring.
• Remove old nests. Have bird, wasp or rodent nests removed from the attic, eaves and chimney.
• Control dust and pet hair. Regular dusting and grooming remove food for larvae. Our guide on how to get rid of dust mites and allergens covers a full routine.

When to call a professional

Call a licensed pest control professional if you keep finding larvae after 6 to 8 weeks of thorough cleaning, if damage is spreading to valuable rugs, furs, antiques or wool carpeting, if you suspect a source in wall voids, ductwork or the attic, or if you find old animal nests you can’t safely remove. A textile conservator can help with heirlooms. And if anyone in the home has ongoing skin irritation, see a doctor.

Frequently asked questions

How long does it take to get rid of carpet beetles?

Most homes need 4 to 8 weeks of steady work. Vacuuming and laundering remove most larvae right away, but eggs can hatch in 1 to 3 weeks, so keep vacuuming problem areas weekly and check traps. Larvae can live for months, which is why one cleanup rarely finishes the job. Keep monitoring through the next spring, when adults are most active.

Can carpet beetles live in your bed?

They can, but they don’t feed on people. Larvae may wander onto beds with wool blankets, down comforters or feather pillows, or where hair and lint collect. Wash bedding in hot water and dry it on high heat, vacuum the mattress and bed frame, and look for the source nearby, often in a closet or under the bed.

Are carpet beetles harmful to humans?

Carpet beetles don’t bite or spread disease. The main harm is damage to fabrics and stored foods. Some people get itchy, red bumps from contact with the bristly larval hairs, which is sometimes mistaken for bites. If you have a rash that doesn’t clear up, see a doctor, and clean bedding and nearby fabrics.

What kills carpet beetle larvae instantly?

Heat and direct contact work fastest. A dryer on high for 30 minutes, steam from a steam cleaner, or thorough vacuuming removes or kills larvae right away. Freezing works too, but it takes days. Insecticides labeled for carpet beetles can help on carpet edges and cracks. Always follow the label, and never apply them to clothing or bedding unless allowed.

Why do I keep finding carpet beetles on my windowsills?

Adult carpet beetles are attracted to light, so they gather at windows, especially in spring and early summer. A few adults may have flown in from outside. Several adults, or finding them repeatedly, usually means larvae are developing somewhere inside. Check closets, rugs and vents nearby, and vacuum up the adults you see.

Next step: keep closets and bedrooms clean of the dust and hair that feed larvae with our guide on how to get rid of dust in your house.