Wasp Nest in a Cavity Wall – How Professionals Treat Hidden Nests in Kirby Muxloe
A cavity wall nest starts with one queen and a few cells in spring, and by August it can be a large colony, which is why early spotting makes such a difference.
A season in the life of a wall nest
Wasp nests in cavity walls follow the same calendar as nests anywhere else, but because nobody can see them, the stages tend to pass unnoticed. Understanding the cycle helps you spot the clues at the right time.
It begins in late April or thereabouts, depending on how mild the spring is. A queen that has survived winter looks for a sheltered place to start a nest. A small gap in a wall leading to a dry cavity is ideal.
Sections of this guide are general, because the cycle is the same for wasps across the country. How early or late a particular nest starts depends on the weather and the spring, so the dates here are rough.
Spring: the queen on her own
At the beginning there is only one wasp. She builds a small paper nest and raises the first workers by herself. At this stage you may see a single wasp visiting a particular gap in the wall over a number of days. That is easy to dismiss and easy to miss.
It is, however, the best time to deal with a nest, because the colony is tiny and the entrance has little traffic. If you see a lone wasp repeatedly entering one hole in spring, make a note of it. A walk around the outside of the house in May is worthwhile for this reason.
A second clue at this stage is the sound of a single wasp at the gap, and perhaps a faint scratching as the queen works on her first cells. These are easy to overlook, but they tell you where a later problem may begin.
If you can spare five minutes in May, stand a few metres back from the house and watch each wall in turn. Look especially at air bricks, the line under the roof edge and the area around pipes and cables, as these are where early queens look first.
Early summer: the workers take over
Once the first workers have emerged, the queen stays in the nest and the workers take over the building and foraging. More workers means more traffic, and the nest expands across the cavity. This is when most people first notice the flight line to a small gap.
- A few wasps at the same gap, coming and going over the day.
- A faint hum from the wall on a quiet afternoon.
- A stray wasp or two inside, on the wall side of the house.
Warm, sunny walls speed things along, because a warm cavity helps the nest to develop. That is why the busiest entrances are often on the sunniest side of a house.
August: the peak
By the height of summer the colony is at its largest, and a nest can hold 2,000 to 10,000 wasps or more. At this point the traffic can be impressive, and the pressure on the wall is greater. The workers are now also searching widely for food, which is when wasps become a nuisance at picnics and bins.
If you are in Kirby Muxloe and have only just noticed a flight path in August, there is no need to feel foolish. It is very common for a hidden nest to go unseen until it has grown large. The treatment is the same fixed price whatever the stage.
Some of the wasps seen at bins and drinks in late summer may well be coming from your own wall, so a sudden increase in nuisance around the garden is a useful hint.
At the peak, there is little a householder can do except keep clear. The wasps are working hard, the nest is full and the entrance is busy. This is the stage at which the most stings occur, usually when somebody walks too close to the flight path.
Autumn and winter: the colony fades
As the weather cools, the colony declines. The old queen and the workers die and only new queens survive, finding a sheltered spot to hibernate. The empty nest is not normally reused.
This is the right time to repair the wall. A repointed joint or a mesh across an air brick will make that opening unavailable to next year’s queens. If you do this in winter or early spring, you are well ahead of the next season.
Not every gap can be closed by the householder. For larger repairs, a builder will help, and if you rent, check your tenancy agreement on who arranges it.
If it is a pair of houses that share a wall, mention that when you book, because the same cavity may serve both.
If wasps are active now
Do not block the entrance, do not poke the wall and keep children and pets away. Our technicians are trained and fully insured, and treat the nest through the entrance. We do not describe the method, but you may ask when you book, including whether the empty nest can be taken down.
Wasp nest treatment is a fixed £95 per nest, with £35 for any additional nest on the same property and no call-out charge. We confirm the price by phone before the visit, and no work begins until you agree. Telephone 0116 214 9259, or use the contact page booking form. We work seven days a week, offer same-day service and cover homes and businesses.
Mention any wasp-sting allergy in the family as you book.
Because queens search for sites from late April, a repair made after the season has ended is far more useful than one made after wasps have arrived. Put a reminder in your diary for the winter.
Wasps on your property in Kirby Muxloe?
Fixed price £95 per nest, no call-out charge, same-day service available.