If you have wasps then pest control can deal with these. They make a paper nest that can be quite large. The wasp nest starts off quite small. 
Wasps are yellow. They only become a nuisance to humans in the autumn when they start to look for sweet treats! 

We can not attend wasp calls. The council's pest control will come out to wasps.

This is the started nest. This was removed from a shed on an allotment.
It is about 4-5cm tall at this stage.


This is a wasp nest removed at the end of the season from a loft space.

This is a queen wasp