How long will the bees nesting in my wall cavity stay there?

Bees nesting in your wall cavity can stay for several weeks to months, depending on the species and environmental conditions. Typically, honeybees may remain until late fall when they prepare for winter, while solitary bees may have shorter lifespans. If the nest is not disturbed, they will usually leave once their life cycle is complete or when temperatures drop significantly. It's advisable to consult a local beekeeper or pest control expert for specific guidance on managing the situation.