Why the Eaves of a Tiled Roof Suit Them
Deep timber eaves with an open gap behind the fascia are an invitation to a nesting bird, and a loft that is boarded and used for storage rarely gets looked at between one Christmas and the next. What accumulates up there - nest material, feathers, dead flies at the gable window, wool jumpers in a box - is precisely what carpet beetle larvae eat, and they will live on it for a long time without anybody in the house knowing. The guide on where carpet beetles hide sets out the range of places.
An Active Nest Has to Be Left Alone
While a wild bird's nest is being built or is in use, it is protected by law and nothing may be done to it. The time to clear old material and have the gap at the eaves closed is after the birds have finished and gone - which is roofing and clearance work rather than pest treatment, so a roofer or a builder does that part while we deal with the larvae that have already come indoors.
Down From the Loft Into the Bedrooms
The route into the house is short. A loft hatch that does not seal, the gaps where pipes and cables drop through the ceiling, and the eaves cupboards built into a converted loft all connect the roof space to the rooms below, and larvae travel far more than people expect for something a few millimetres long. That is why damage often shows first in a back bedroom directly under the affected part of the roof. If anything is stored in the loft in cardboard or bin bags, treat that as part of the same problem.
Fluff Under the Kitchen Units and Along the Skirtings
Indoors the larvae look for the same thing: material that is undisturbed and full of fibres. The strip under a kickboard, the void behind a fitted unit, the carpet edge under the gripper, the corner of a built-in wardrobe and the floor beneath a bed with drawers all collect a grey felt of hair, fibre, crumbs and dead insects. Pull off a kickboard and vacuum along there with a crevice tool; the same goes for the rail behind a radiator and the dust in a window channel. The damage guide shows what their feeding leaves behind - and it can be told from moth damage, which this comparison explains and carpet moth treatment in Kenton covers from the other side.
Beetles on the Bay Windowsill in Spring
Most households meet the adults before they ever meet the larvae. In spring the beetles - a few millimetres long, oval, mottled brown, grey and cream - head for daylight to get outside and feed on pollen, so they collect on the sill of a bay window or die in the channel of a casement. A dozen of them at the window is a message about what is going on out of sight above or below, not a problem at the window itself. This guide explains the seasonal move, and the identification guide goes through the other signs: shed bristly skins in a drawer, irregular holes in stored knitwear, and the larvae themselves.
The Bristles and Itchy Skin
The larvae are brown, hairy and shaped like a small woodlouse, and their bristles irritate some people's skin, raising an itchy rash that gets mistaken for insect bites. They do not bite - there is nothing in a carpet beetle that feeds on people. If you have a rash or other symptoms, speak to a pharmacist or GP, and call 999 for signs of a severe allergic reaction; we are pest controllers and not medical advisers. This guide deals with the question, and where bites are in rows overnight it is worth ruling out bed bugs in Kenton instead.
Booking and Getting the Rooms Ready
Tell us which rooms have larvae or damage, whether beetles are appearing at particular windows, and whether there is or has been a nest in the eaves, because that changes what needs doing after the treatment. Before the visit, vacuum edges, under furniture and inside wardrobes and drawers, empty the vacuum into an outside bin, and move what furniture you can. Bag textiles with holes for a hot wash. Afterwards, expect to see the occasional adult for a while, particularly in spring, and get back in touch if larvae are still turning up in the same place weeks later.
Keeping the Numbers Down in a Kenton House
Once the loft and the eaves are sorted out, the rest is housekeeping in the places nobody vacuums. Go along the skirtings and under the units a few times a year. Store wool in sealed boxes rather than cardboard, clean before putting away, and keep the loft hatch closed on a decent seal. Clear dead flies out of window channels and light fittings, since they feed larvae as well as anything woollen does. The prevention guide has the rest, Carpet Beetle Control Brent covers the borough, and where a loft turns out to hold more than beetles, squirrel control in Kenton deals with that side of it.
