The answer to 'why is my carpenter ant infestation' is that carpenter ants are a common pest that can cause significant damage to the wooden structures in your home if left untreated. Carpenter ants are attracted to damp, rotting wood and will build their nests inside the wood, tunneling through it and weakening the structure over time.
Some common signs of a carpenter ant infestation include sawdust-like piles around the home, visible ants, and damage to wooden beams, walls, or floors. Carpenter ants can also be attracted to sweet foods and may be seen foraging in your kitchen or pantry.