A single ant colony will typically have multiple nesting sites. All nesting sites need to be found and treated to eliminate ants from your property. Ants will nest both inside and outside our homes.
Where an ant prefers to nest outside can vary by species, but most will choose to nest in damp soil found under things like trees, mulch, leaf piles, landscaping ties, and woodpiles. Carpenter ants differ because they create their nests inside wood, preferring decaying or water-damaged wood.
When ants are nesting in our homes, they usually are found near sources of moisture. Walls voids near heating units and water pipes are some favorite nesting spots. They will also create nests under floors, behind cabinets, and in attics.