The larger the colony the larger the ants. One sure way is by seeing them in your home. You may see 1 or 50 at a time. Wood affected by water seepage near plugged drains, gutters, window frames, leaking doors, etc. Wood in areas of improper ventilation such as cellars, crawl spaces, attics, etc.
Arrow is a full service pest control company.
Carpenter ants are a wood nesting member of the ant family. They live in all areas of the United States and feed on other insects and a variety of human foods. Carpenter ants like bees and termites are social insects that live together in colonies made up of different types of members. A carpenter ant nest contains males, queens, and workers with as many as 3,000-4,000 ants. Carpenter ants in our areas are usually black, but may vary in color.