Where the Treatment Actually Goes
At the nest entrance, not into living space. On most jobs that means outside the building entirely — a soffit, a gable, an airbrick, a hole in the lawn. Nothing is sprayed through a house, nothing is fogged, and no room is treated.
That is the single most useful thing to understand about safety here, because it means the exposure people worry about mostly does not arise. Where the entrance is inside — a loft, a garage, an outbuilding — the exclusion is that space, not the whole property.
What to Do on the Day
- Keep children and pets indoors, or away from that part of the garden, while the work is done
- Bring in washing, toys, paddling pools and pet bowls from the area around the nest
- Stay clear of the entrance until the activity has stopped, which is usually the same day
- Do not let anyone go and look at the treated entrance out of curiosity — that is where the wasps still are for a while
- Keep off a treated ground nest in a lawn until we say otherwise
We will tell you what to keep clear of and for how long before we leave, based on where the nest actually was rather than a generic figure.
Tell Us Beforehand
Say when you book if there are children in the house, pets including caged animals and fish, anyone pregnant, or anyone with asthma or another respiratory condition. Also mention a pond, a vegetable patch, a hive or a chicken run near the nest. None of those stops the job; all of them change how it is planned.
Aquariums and ponds are the ones most often forgotten. If there is either near the nest, mention it — it takes a sentence and it matters.
The Risk of Leaving It
The honest comparison is not treatment against nothing. It is treatment against a colony that is still growing next to where children play, at the time of year when it is largest and its wasps are at their most persistent.
A child who disturbs a ground nest in a lawn gets stung repeatedly rather than once, because the colony responds as a group. That is the scenario worth weighing, and it is why a nest in a family garden is not one to leave until the cold weather.