If your wasps have built a nest on the floor of your attic bomb style wasp poisons work very well.
Getting rid of wasps in attic.
Getting rid of the nest is a bit difficult as compared to a single wasp but if you take the appropriate measures you will surely be successful.
Another very common place to find wasps nesting is in attic spaces.
Fill a shop vac with soapy water then place the head attachment near the source of the insects.
The orkin pest specialist will inspect and develop a customized solution backed by science that best meets your needs.
Leave the shop vac on for a few hours to catch as many of them as you can.
If the nest is a hanging nest make sure you purchase a spray with a projectile shot so that you can completely cover the nest with it.
The wasps and hornets will get sucked in to the vacuum and drown in the soapy water.
Because they are a dangerous pest i would recommend calling the local orkin branch office and asking them to send over a highly trained orkin pest specialist.
You need to locate the nest first.
Attic is a not so attended place and thus the wasps can live there happily and also make a nest.