How to get rid of carpet beetles
Carpet beetles are tiny mottled beetles whose larvae chew holes in wool, silk, fur, and feathers. Most people only see damage — the bugs themselves are easy to miss. Vacuuming hard, washing or freezing fabrics, and a targeted insecticide on carpet edges clears 90% of infestations in 4–6 weeks.
Tools
- ✓Critical — most of the fight is mechanical removal of larvae, eggs, and food debris.
- ✓Empty the vacuum canister or bag into a sealed garbage bag and take it outside immediately.
- ✓Heat kills all life stages; steam goes where you can't put insecticide.
Materials
- +Spray Ortho along carpet edges, baseboards, closet floors, and under furniture — the egg-laying zones.
- +Mild deterrent for stored wool/silk. Not a fix on their own — pair with sealed containers.
- +Optional. Dust into wall voids, under baseboards, and in attics where larvae overwinter.
Steps
-
1
Confirm it's carpet beetles, not bed bugs or moths
Adults are 1/8 inch, oval, mottled brown/black/white. Larvae are tan, fuzzy, about 1/4 inch, and curl when disturbed. Damage is irregular holes in wool/silk/down — not the straight rows of cuts that clothes moths make.
Tip: Larvae are found near windowsills, in lint behind dressers, and in the dark edges of closet carpets. -
2
Vacuum hard — everywhere
Daily for the first week: carpets (slowly, multiple passes), upholstered furniture, closet floors, under beds, baseboards, vents, lint behind appliances. Empty the canister into a sealed bag outside every time.
-
3
Heat-treat or wash the source fabrics
Wash anything you can on hot and dry on high. For dry-clean-only wool/silk, run a garment steamer over both sides or seal in plastic and freeze at 0°F for 2 weeks.
-
4
Treat the perimeter with insecticide
Spray Ortho Home Defense along the edges of every carpeted room, into closet corners, and under furniture. This is the egg-killing layer — adults flying in won't find a place to lay.
-
5
Store clean wool in sealed bins
After laundering, store sweaters and wool blankets in airtight plastic bins with cedar blocks. Don't store anything you wore — sweat residue is what carpet beetles eat.
-
6
Recheck at 3 and 6 weeks
Eggs hatch in 7–35 days. Repeat vacuuming and a second perimeter spray at week 3 if you still see larvae. Most infestations are gone by week 6.