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

Wasps flying repeatedly into the roof usually mean a colony in the loft or roof void. In a larger family house, with a loft that may be partly boarded, converted or just full of boxes, that raises a question beyond the stings outside: what happens if they get into the house?

How wasps end up indoors

A wasp nest is built outwards. Over the summer the colony grows, and workers need more room. In a loft the nest is often attached to a rafter or the underside of the roof, and it can expand until it meets insulation, a ceiling, or a gap around a pipe or a light fitting. Wasps do not set out to enter your house; they find a route while exploring for the way out.

Signs that the colony is reaching the living space:

• Wasps at an upstairs window that has not been opened
• A buzzing or dry rustling from a ceiling, loft hatch or the wall above a wardrobe
• Wasps around a recessed light fitting or extractor in the top floor
• A brown damp-looking mark on a ceiling, which can come from the nest itself

A loft you use in Great Shelford makes it more urgent

In a house where the loft is a storage space or a converted room, you may need to get up there regularly. A nest in the roof beside the hatch is not something to risk reaching past. Even if the entrance is on the outside, the nest itself may be just a short distance from where you stand.

What not to try at a Great Shelford house

1. Blocking the outside gap. This pushes the colony to look for another exit, and the nearest alternative can be inside.
2. Smoke or fumigant canisters in the loft. They are not a reliable fix, and they are a fire risk around timber and insulation.
3. Poking the nest to check it. You will not like the result.

What we do

We locate the nest, then apply an insecticidal dust at the entrance, which the wasps carry into the colony. There is no need for you to go into the loft. In Great Shelford the cost is £90, fixed and guaranteed, and if the problem comes back within 14 days we re-treat free. See the cost guide for more.

The nest is usually left to dry out and the colony dies off. If you are unsure whether it is wasps at all, a pest inspection and survey costs £120.

Larger Great Shelford houses often have several roof sections, a dormer or an extension, so the wasps may be using a lower roof rather than the main ridge. Tell us which part of the house you can see them at, and whether there is a loft conversion above it.

Call 01223 902388 or WhatsApp us, and tell us if any wasps have reached the rooms below.