Wasp nest are best dealt to at night when the wasps are inside the nests asleep. I suggest you look into getting a professional round to remove it as they can be quite nasty when they are not happy.
:digH:
I destroyed a nest once with petrol at night, but I would not recommend it if it is in the house. The nest I destroyed was in the ground at the back of a large property. (I gave into temptation and peer pressure and ignited the nest. Lesson learned, do not forget about the child in the shower in the house 40metres away who is using all the water pressure and leaves you with nothing to control the fire with. I killed the nest, but also lost half a hedge in doing so. :gigl: )