Some beekeepers will remove a swarm of bees for free or for just the cost of travel to the site, if the swarm is relatively accessible and if they believe they can take home a healthy bee colony. (Beekeepers will not remove a swarm for free if it has been sprayed with pesticides, because the bees are no longer healthy.)
Nest In Walls
Honey bee hives/nests can be inside walls, ceilings, floors, hollow trees or other cavities. Removal may require cutting holes in the building in order to extract the bees and their honeycombs. It can cost $100-$700 or more to remove a honey bee nest
A wasp nest may be an umbrella-shaped paper-like nest built under an eave or ledge (paper wasps); an inverted tear-drop ball attached to a tree, bush or the side of a building or underground or in a rock wall or the wall of a building. Wasp nests may need to be eliminated if they're in high-traffic areas.