What does it mean when a wasp builds a nest in a window outside your home?

Having wasps building a nest outside your home window is not a sign of anything. Wasp nesting is mainly related to a suitable environment, abundant plants and open space, probably to protect the colony and reproduce offspring. Although wasps nesting on windows may cause certain effects on your home, such as damaging furniture, appliances, etc., they are also out-and-out beneficial insects, capable of preying on pests and beneficial to the ecosystem.

If you find a wasp nesting on a window, it is recommended to contact a professional to deal with it in time to ensure the safety of yourself and your family.