Beetles on the windowsill in spring are the sign nobody recognises. Bristly larvae under the sofa are the sign that explains it.
Small brown bristly larvae in the carpet, empty bristly shed skins, and small mottled beetles on windowsills in spring.
The adults are usually noticed first and almost never connected to the damage. They do not eat carpet — their larvae do, somewhere darker.
| Sign | What it looks like |
|---|---|
| Larvae | Elongated, brown, densely bristly, up to ~5mm — 'woolly bears' |
| Shed skins | Empty, papery, bristly — look almost identical to larvae |
| Adults | Rounded, mottled black/brown/cream, 2–4mm, on windowsills |
| Carpet damage | Irregular scattered holes and thinning, no webbing |
| Clothing damage | Several small separate holes rather than one eaten area |
Worth knowing, because it changes what you conclude.
See our full carpet beetle treatment service, published room prices and identification advice.
View Carpet Beetle Control Kenton →The beetle on your windowsill is looking for a way out. The thing eating your carpet is somewhere much darker.
| Where | What it looks like |
|---|---|
| Wool carpet | Irregular scattered holes and thinning, no webbing |
| Wool clothing | Several small separate holes |
| A rug | Bare patches, often at the edge or where it has been rolled |
| Upholstery | Thinning on natural-fibre fabric |
| Under furniture | The heaviest damage, and the last place people look |
Comes up often enough to be worth a section.
Any live larvae mean active feeding. How many rooms matters more than how many larvae.
If the source is still there, yes. Which is the argument for finding it.
Not on the fibre, but they can live on the hair and debris in it.
An old wasp nest in a loft is a beetle food source — a live one is £90 fixed in Kenton, guaranteed.
Brown bristly larvae in the carpet, empty bristly shed skins, small mottled beetles on windowsills in spring, and irregular scattered holes with no webbing.
A live larva moves when disturbed. A shed skin is papery and hollow.
Small, rounded and mottled black, brown and cream, 2–4mm. They fly well and are drawn to light, which is why they turn up on windowsills.
No. They feed on pollen outdoors. Finding them means larvae somewhere in the building.
Think about a source above — a loft with an old bird's nest is the common explanation in a house.
Several small separate holes, rather than the larger eaten areas carpet moths leave.
Possibly. They do not bite, but some people react to the bristly larval hairs with an itchy rash that gets mistaken for bites.
Moth larvae are smooth and cream with silk webbing. Beetle larvae are brown, bristly and leave shed skins.
Photograph a larva — bristly means beetle. Then check the loft before counting rooms.
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