I am a qualified pest controller (military) but I can't pop round to rid the damn things for you, but here is a link wasps
make sure you wear some protective clothing cos these little buggers will try to defend their nest and sting you, anytime is a good time and while it is in progress of being built is a good time and when the wasps are dead, burn the nest as they will collect it and start building it again.
There will be more than a couple of wasps, obviously they are already evictees from someone else and your home is going to be their home soon.
The real art of conversation is not only saying the right thing at the right moment but also to leave unsaid the wrong thing at the most tempting moment. -- unknown