The household route matters
A nest near a seldom-used outbuilding creates a different access question from one beside the main door. Say which entrance the family normally uses and whether another route is available. Keep pets and children away from the activity. Observe only from a protected position; do not tap the surface, aim a hose at it, or stand close to count insects entering the opening.
Describe the structure around the activity
A roof edge, hollow railing, or gap near siding can conceal very different nest arrangements. Explain whether a nest is visible or whether you only see insects disappearing inside. A ladder is not a safe way to improve a casual identification. Do not block a suspected active entrance before an assessment, since concealed activity needs a plan suited to the actual structure.
Clarify the work before opening the area again
Ask about access requirements, what the service includes, and how to know when the doorway can be used normally. An unreachable nest may require a different arrangement from an exposed one. Confirm whether removal of accessible nest material is included and what signs to watch afterward. Identification also matters: bees visiting a garden are not the same question as a defensive wasp colony beside an entrance.