How to kill wasps nests in walls – the safest ways to keep your home wasp-free

Ninja glass frog defends his eggs against stinging Wasps

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Whilst these black and yellow pollinators play a vital role in our ecological systems, dealing with a wasps nest in your home is necessary to avoid structural damage. Getting to the bottom of an infestation of wasps on your property is hard to do when the nest is hidden away in the walls, so what’s the best way to locate it and get rid of it for good?

The best way to get rid of a wasp nest is to hire a professional to safely take a look and deal with your wasp problem. But if you’re up for the challenge yourself, there are some things you can do to tackle wasp nests yourself.

How to tell if wasps are in your walls

If you notice unusual buzzing sounds coming from parts of your property, such as the floors, ceiling or walls, then it’s very likely that there is a wasp nest nearby.

Keep an eye on wasps that are outside and see where they head to. They generally use the same flight lines so if you notice wasps heading in the same direction and then coming from the same direction, you’re in with a chance of locating the nest.

Look for wall cavities or air bricks to get a better idea of where they’re heading in your home.

If the wasps are in your walls, there’s a very high chance they’ve snuck in through a small gap in your brickwork.


Never block up wall cavities to prevent wasps escaping their nest- you will agitate these busy creatures.

Wasp control specialist, Hampshire Wasp Control, advises against blocking their escape routes for the following reasons:

  • If blocked in, wasps can chew through plasterboard, wood, and various other materials to find a way out.
  • If they start chewing through building fabric to find an exit, they can break through to the inside of the property, and the situation can go from bad to worse as the occupants of the nest empty into the interior of your home

How to remove a wasp nest from your wall
Once you’ve located the wasp nest and are ready to begin removing the unwanted visitors, ensure you have plenty of protective clothing on any time you go near the nest.

Removal can be a long and tricky process, so wearing gloves, thick jumpers, long trousers, a hat and a face covering is essential to avoid nasty stings if things go wrong.

You will need a pesticide to keep your home wasp-free, so opt for a spray bottle with a longer tube applicator to spray into the entryway – something like Zero ultra-power wasp nests killer foam will work well.

Lure trap:

Make a lure trap and place it in an area near the wasp nest entrance to attract the wasps away from the colony.

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All you need to do is take an empty two litre bottle and cut the neck off it to create a wide entrance.

Different bait works at different times of the year, so use protein – like ham or chicken – in the spring and opt for sugar water, water and jam or fruit juice in the summer and autumn. Always add vinegar no matter the season as a deterrent for bees.

Always lay a lure trap early in the morning and go on to treat the nest in the evening when more of the wasps are inside the nest.

Seal the nest

The only time you should seal the entryway is when you’re ready to treat the nest.

Seal the wall cavity and nest entrance with a caulk sealant to prevent more wasps from entering.

This will also help ensure that the wasps do not easily get out of the wall and go on to create another nest or move further into your home.

Re-enter the nest

Using a drill, create a small hole inside the wall near the location of the nest. It should just be big enough to fit the applicator inside for the pesticide.

Insert the pesticide and repeat as necessary to ensure the wasps are killed. You’ll know if you’ve been successful because you won’t see any wasps near your home.

Seal off the entryway to protect the wall from any future nests.

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