What is the difference between a wasp, a hornet and a yellowjacket?
All three are stinging insects that build paper nests, but they differ in where they nest and how they defend it. Paper wasps build open umbrella-shaped combs, yellowjackets often nest underground, and hornets build the large enclosed gray nests. A technician identifies the insect first, because the method depends on it.
Paper wasps build the open comb that looks like a small upside-down shower head, often under an eave or the lip of a porch ceiling. Their colonies tend to stay small, and they are the ones most often found on a door frame or a mailbox post.
Yellowjackets and hornets are social insects whose colonies grow larger, and they defend the nest more aggressively when disturbed. Bald-faced hornets build the large, enclosed, gray paper nests that hang from a tree limb or a building corner, while yellowjackets frequently nest below ground or inside a hollow in a wall. Telling these apart from a safe distance is part of what you are paying for; guessing from a window can lead to the wrong approach.
Can I remove a wasp nest myself?
A small, accessible nest can sometimes be handled by a careful homeowner, but many are not worth the risk. The danger comes from reaching a nest from a ladder, spraying at close range and being surrounded by defending insects. If anyone in the household reacts badly to stings, do not approach the nest at all.
The problems with a do-it-yourself job are rarely the product. They are the ladder, the closeness and the timing. A person on a ladder who is startled by a flurry of wasps has little room to retreat, and an indoor wall nest cannot be reached at all without opening the wall.
If you do decide to deal with a small exposed nest yourself, do not block the entrance, do not use a flame or an oil, and keep children and pets well away. If you are stung and unsure how your body will react, that is a question for a doctor or emergency services, not for a pest-control website.
Where do wasps nest on Northeast Ohio houses?
On houses in the Euclid area, nests commonly turn up where the roofline overhangs a wall, in sheds and garages, under decks and porch ceilings, and in gaps around vents and siding. A good check is a slow walk around the outside, looking up, before anyone mows or paints.
Much of Euclid's housing was built in the middle of the twentieth century, according to the fact sheet behind this site, and many of those houses have wide eaves, attached garages, enclosed porches and small sheds in the yard. Each of those is a sheltered corner that a founding queen can use. Older houses also tend to have more gaps where trim has shrunk or siding has lifted, and those gaps lead to wall voids.
Houses on wooded lots in the nearby suburbs, such as those toward Gates Mills or Chesterland, give nests even more places to hide, among branches and in outbuildings. Wherever you live, the pattern is the same: look at the places that are dry, shaded or sheltered from the wind.
Should I seal the hole after the nest is treated?
Yes, but only after the technician confirms the nest is inactive. Sealing an entry hole too early can trap insects inside a wall, where they may chew toward the living space. A quiet period of several days is the usual check before any sealing, and the technician can tell you when it is safe.
An empty nest in a wall cavity is not dangerous by itself, but it can attract other insects that feed on the leftover material. After activity has stopped, the opening is sealed with a material suited to the surface, whether that is wood trim, a vent screen or a flashing gap.
If you plan the repair yourself, ask the technician how long to wait and what to use. A repair that is sealed neatly and painted is far less likely to be reused the next time a queen looks for a place to start.