Why Are Wasps Repeatedly Flying Into the Roof of My Buckden Home?

Wasps that keep flying into the same part of a roof are nearly always going to a nest. Workers do not wander in and out of a gap for no reason; they are carrying food and building material to a colony and then coming back out for more. A single wasp that drifts in and leaves is a different thing, and it is worth telling the two apart before you worry.

In an older house such as those around the village core in Buckden, the gaps are rarely dramatic. A slipped tile, a worn joint where the fascia meets the brickwork, a tired bit of pointing under the eaves: any of them is wide enough for a wasp and none of them looks like a problem from the garden.

One wasp or a steady stream?

Spend a few minutes watching from a distance, ideally from a window or from several metres back. What you see tells you most of what you need to know.

• A steady two-way stream to one point, with wasps arriving heavy and leaving light, means a nest. Activity builds as the summer goes on.
• Occasional wasps that go in, hover and leave are more likely to be scouting, especially in spring, when a queen is looking for somewhere to start.
• Wasps landing on bare weathered wood are often scraping off fibre to chew into nest paper. That is still a sign of a nest nearby, but the entrance may be a few metres away.

Why a roof, in particular?

A Buckden loft is dry, dark, undisturbed and sheltered from wind, which is exactly what a queen wants in spring. She builds a small starter nest, raises the first workers, and from then on the workers do the building and the foraging. By late summer a roof nest can be large, and it is invisible from the ground. The only evidence you get is the traffic.

Will it go away by itself in Buckden?

Eventually, yes. The colony dies off in autumn and the nest is not used again the following year. The problem is the weeks in between, which are when the colony is largest and most irritable, and when wasps are most likely to find their way into the house through a gap in a ceiling or around a light fitting. If the entrance is near a door, a window or a bedroom, waiting it out is a poor trade.

What not to do

1. Do not block the hole. Wasps that cannot get back in often chew a new route, and in a roof that can lead into the room below.
2. Do not spray the entrance from a ladder. A can reaches the wasps you can see, not the colony, and it leaves you with a more defensive nest and a long drop.
3. Do not knock down anything visible without knowing what it is. A nest you can see may not be the only one.

What treatment involves

We apply an insecticidal dust at the entrance the wasps are using. They carry it into the nest on their bodies, so it reaches the parts nobody can get to. Activity picks up for a short while, which is normal, then quietens over the following hours and usually finishes within a day or two. Wasp nest removal in Buckden is £90, fixed and guaranteed, with finding the nest included. If you are not certain it is wasps, a pest inspection and survey is £120. The cost guide explains exactly what the price covers.

A last practical point for Buckden: if the house is older, the gap may be in a stretch of eaves that has been patched more than once. Mention that when you ring, since a repaired section is often where the next weakness appears.

If you can tell us which end of the roof the traffic is at, call 01223 902388 or send us a message on WhatsApp and we will say what we think is going on.