Another very common place to find wasps nesting is in attic spaces.
Getting rid of wasps in attic.
Fill a shop vac with soapy water then place the head attachment near the source of the insects.
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.
Attic is a not so attended place and thus the wasps can live there happily and also make a nest.
You need to locate the nest first.
It is very easy for wasps to get into attics normally due to openings around vents and or poor construction practices that leave big gaps between the sections of wood near the areas where the shingles and gutters meet up.
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.
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.
Spray the nest according to the directions on your spray.
The orkin pest specialist will inspect and develop a customized solution backed by science that best meets your needs.