We recently discovered we had a wasps nest in a wall cavity. We came back from holiday to a very strange sound within the wall - sounded like rainfall. We were about to call a plumber until I checked outside the house and could clearly see dozens of wasps flying in and out of a space between the roof and gutter. 🤢
At first we were tempted to leave it as I knew they'd die off in the autumn anyway but then wasps started getting into the house and two of us got stung so yeah, had to call pest control.
Within 30 minutes of treatment the noise had stopped but now, about a week later, we're still being plagued indoors by dead and dying wasps. I went into the spare bedroom and there were about 20 on the floor/windowsill. Hoovered them all up but then two days later, another 20-30. Hoovered them up and yet now there's more. They're all sluggish (if not dead) so they have definitely been poisoned and I have no idea how they're getting in, but pest control tells me wasps can squeeze out of the smallest of spaces. He says this is normal because they're fleeing the treatment. It's really giving us the ick!!
Is there anything else we can do? Maybe a spray in the bedroom to prevent them getting in? Not sure what to do!