The answer to 'signs of carpenter ant' is that the most common signs of a carpenter ant infestation include piles of sawdust-like wood shavings, small holes in wood, and sightings of large, dark-colored ants. Carpenter ants build nests in moist, decaying wood and can cause significant structural damage to homes over time.
Carpenter ants are attracted to areas with high moisture content, such as leaky pipes, roof damage, or poor ventilation. They tunnel through wood to create their nests, leaving behind tell-tale piles of wood shavings. Homeowners may also spot the large, black ants themselves, which can be up to 1/2 inch long.