Can You Remove a Wasp Nest Yourself? Advice for Westwell Leacon Homeowners
An air brick or vent with wasps streaming in and out is an open door to a cavity, and plugging it is the instinctive fix that tends to backfire.
Small gaps, large nests
Not all wasps enter through a big hole. A standard air brick, a vent in a soffit, a gap around a pipe or a crack in the pointing can be enough. Behind the opening is often a cavity: a space between walls, a void under a floor, a gap inside an outbuilding. In that space a nest can grow unseen from late April onward, depending on the weather, until it peaks in August with anywhere from 2,000 to 10,000 or more wasps.
Westwell Leacon properties are no different from others in having these small openings, and they are easy to overlook. The first sign is often a line of wasps at a vent low on the wall, or a few appearing inside the house.
The question is whether to deal with it yourself. A vent seems an easy target, at ground level and in plain view. That is exactly why it is dangerous: you can reach it, so you feel you should, but the nest behind it is out of sight and out of reach.
Another small point is that a ground-level opening is often found when someone is gardening, mowing or washing a car. A wasp stream at knee height surprises people because they are not expecting to be at risk at ground level. Treat any vent with traffic as a nest entrance.
Why blocking the vent is a mistake
Filling, taping or covering the opening feels like the logical step. The reasoning is that if the wasps cannot get in, the problem goes away. In practice it does the opposite.
- The colony is still inside, and the wasps look for another way out.
- Alternative routes can lead into a floor void, a kitchen unit, a wall cavity or a room.
- Air bricks and vents are there for ventilation. Blocking them can cause damp or other problems for the building.
- You are working at close range, with wasps coming and going around your hands.
If you have already blocked a vent, do not remove the cover in a hurry. Step back, keep the room closed and describe what you did when you book.
Spray foam, mastic and tape are common DIY fillers, and each of them is tempting because they are in the shed already. They are also the very materials that people find, months later, wasps have chewed through.
Signs the cavity has a way into the house
Watch for these clues.
- Wasps appearing in one room, especially a kitchen, utility room or downstairs toilet on an outside wall.
- A buzzing sound from a wall, a floor or a cupboard.
- Wasps crawling around skirting boards or behind units.
- Wasps at a window on the same side as the vent.
- Damp-looking or discoloured patches on the inside of the wall.
None of these proves a nest, but together they are worth reporting. Keep the affected room closed and avoid leaning on the wall.
If wasps are only in the room at certain times of day, note the pattern. Cavity nests are warmed by the sun on particular walls, and the traffic often follows the light. This detail is useful to the technician and costs you nothing.
Many vents sit close to pipes, meter boxes or cables. Keep your hands away from all of them while wasps are active, since you cannot see where the nest begins behind the wall.
Practical precautions
While you arrange a visit, take simple steps.
- Keep people and pets away from the vent or wall.
- Close windows and external doors near the entrance.
- Cover bins and put food and drink away.
- Do not use sprays or fill the gap.
- Do not cut back plants right beside the vent, as vibration and movement alert the colony.
If someone is stung, wash the area, take out the sting if you can see it, and apply a cold pack. Phone 999 straight away if you see swelling of the face, lips or throat, a widespread rash, wheezing or difficulty breathing or dizziness. A person with a known allergy should speak to their GP and should be mentioned when booking.
Take care with pets too. A dog sniffing at a vent near the ground is exactly the kind of curious animal that gets stung on the nose. Keep it on a lead in that part of the garden.
The technician's role
A technician can judge where the nest is likely to be and treat it without driving the wasps into the house. Wasp Exterminator Kent works at a fixed £120 per nest, with one visit guaranteed. Any further nest found at the same address is priced at £60 each. There is no call-out charge, and the price does not change with location or time of day. Technicians are fully insured and qualified.
The business covers both domestic and commercial properties, every day of the week, with same-day service, evening and weekend slots. To book, ring 01622 410 019, or use the online form on the contact page, which can also be used for emergency service outside office hours.
Mention any vents you have blocked, and ask whether the empty nest can be taken down. Ask also what to do about the vent once the work is finished.
When the visit is complete, ask whether the vent needs to be cleaned, cleared or covered, and who should do it. Do not go back to the opening until the technician has said it is fine.
If a neighbour's property shares the wall or boundary with the vent, let them know that a visit is planned. A quick word can prevent a nasty surprise next door while the work is under way.
Wasps on your property in Westwell Leacon?
Fixed price £120 per nest, no call-out charge, same-day service available.