What type of signs may indicate a wood-destroying insect infestation in a home?

Signs of wood-destroying insect infestation can often be subtle yet critical for identifying potential damage early on. Hollow-sounding wood or visible insect activity are direct indicators that pests, such as termites or carpenter ants, are present. When wood has been compromised by these insects, it often loses its structural integrity, resulting in a hollow sound when tapped. Additionally, visible insect activity, such as the sighting of the insects themselves or their frass (droppings), can provide concrete evidence of an infestation.

The presence of cracks in the foundation, weakness in the roof structure, or water stains on walls may suggest other issues, such as structural problems or water damage, but these are not specific indicators of wood-destroying insect activity. Therefore, the best indicators for diagnosing a wood-destroying insect problem are indeed the condition of the wood itself and signs of insect presence.