Found a Wasp Nest in Your Loft in Arksey? Here's What to Do

Most loft nests are noticed from the rooms below, through odd stains, scratching sounds and wasps drifting down from light fittings, long before anyone climbs a ladder to look.

The clues usually turn up downstairs

Few people discover a loft nest by going up there. It is far more common to notice something strange in the rooms underneath and only then start to wonder what is happening above the ceiling. The signs can be small at first, and in the early part of the season they are easy to put down to something else.

The things worth taking seriously are these:

• A steady trickle of wasps appearing around a ceiling light, a smoke alarm or the corner of a landing, particularly if they keep coming back after you let them out.
• A dry, papery rustling or faint scratching in the ceiling, most noticeable on a quiet afternoon or late evening when the house is still.
• A brownish damp-looking patch spreading on the plasterboard. This can be fluid and chewed material seeping through, not a leak from the roof.
• A soft hum that rises on warm days and fades at night.

Any one of these on its own is a reason to keep watching. Two or three together, in a house that has had wasps indoors in recent days, is a strong hint that a colony has settled in the roof space.

Why wasps come down into the house

A loft nest has its main entrance somewhere on the outside of the building, usually a small gap at the eaves, a vent or a missing piece of pointing. The wasps use that gap all day long. Some of them, though, wander the wrong way and find a route through a light fitting, an unsealed pipe run or a gap around the hatch. Once they are in the house they head for the brightest spot, which is why they gather at windows and ceiling lights.

This matters because it tells you something useful about the nest. If a handful of wasps are wandering into the living space, the colony is probably already well established, and the number of workers will keep growing through the summer. A nest started in April can look very modest in May and be a very different proposition by August, when a colony can hold as many as 2,000 wasps.

It also tells you what not to do. Swatting every wasp that appears indoors solves nothing, because the nest keeps producing more. The sensible aim is to deal with the source, not the stragglers.

What to do in the meantime

You do not need to move out, but a few simple habits will reduce the risk of a sting while you wait for the technician.

1. Keep the loft hatch closed. If it has a gap round the edge, a rolled towel or a strip of card on the landing side will do for now.
2. Do not go up to look. A quick peek with a torch is exactly the sort of disturbance that makes wasps defensive.
3. Do not tap, push or press on the ceiling where the stain or the noise is. Vibration carries through plasterboard.
4. Leave the outside entrance alone. Wasps need it to come and go, and blocking it sends them looking for another way out, which is often into the house.
5. Close the doors of rooms where you see wasps, and open a window for them to leave if you can do it without getting close.

Keep children and pets out of the room directly under the suspected nest, and avoid sweet drinks and food left uncovered in that room.

What happens when the technician visits

The price is agreed on the phone before anyone comes out. Treating a wasp nest is a fixed price of £70 per nest, and a second nest on the same property is £25 extra. There is no call-out charge. The one thing that can change the quote is difficult access, where special equipment is needed to reach the nest, and you will be told about that before any work starts. Nothing is done until you have agreed.

The visit itself is quite ordinary from the householder’s side. The technician is fully insured and qualified, finds the route the wasps are using, works out where the nest sits and treats it. You do not need to stand over the work, and it helps if you simply show them which rooms you have seen wasps in and where the stain or noise is. If you would like the empty nest taken down afterwards, ask when you book, since that is something to agree with the technician rather than assume.

Service runs seven days a week and same-day visits are offered, so a Sunday discovery does not have to wait until Monday.

Clearing up once it is done

After the treatment you will probably find some dead wasps near the hatch, on the landing or beneath a light fitting. Most will have dropped in the first day or so. A dustpan and brush or a vacuum with a hose is fine, and it is sensible to wear gloves, since a wasp that looks dead can still manage a sting reflex for a short while.

The paper nest itself is a different matter. It is lightweight and brittle, and it can sit in the roof space for months. Many householders are happy to leave it, and it generally does no harm, but if you want it gone, say so when you book. Do not pull at it yourself on the first day or two.

A stained patch on the ceiling should dry out on its own. If it stays damp, spreads or comes back after a rainy spell, that is a separate issue and worth having looked at by a roofer. Also look at where the wasps got in. Once the nest is dead, that gap can be closed so nothing else moves in next spring.

If you are in Arksey or the villages nearby and have seen the signs above, you can phone 07798 792 774, or use the online booking form, and give a short description of what you have noticed.

Frequently asked questions

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