With heavy tree cover, frequent rain and long growing seasons, Raleigh is a very comfortable place to be an ant. Trails appear on kitchen counters in February during warm spells, and by summer the yards of Cameron Park, North Hills and Brentwood hold nests along sidewalks, under mulch and inside rotting stumps.
Meet the common species
- Odorous house ants are tiny, dark, and fond of sweets and moisture. They nest in walls, under siding and in mulch beds, and may produce multiple queens in a colony.
- Carpenter ants are large and black or reddish-black, nesting in damp or decaying wood, including old oaks, stumps, porch posts and window trim.
- Pavement ants form nests in the soil along driveways, patios and slabs.
- Fire ants are established in North Carolina and can show up in sunny lawns, building dome-shaped mounds.
- Acrobat and crazy ants are small ants that sometimes invade houses in warm weather, nesting in trees, wall voids and insulation.
How Raleigh's environment feeds them
Piedmont clay holds rain, and the city's mature hardwood canopy continually drops dead limbs, which makes ideal nesting material for carpenter ants. Pine straw and mulch beds beside foundations hold moisture and shield trails. Older homes in Oakwood, Five Points and Hayes Barton may have wood trim and porch framing with a history of leaks. Newer townhomes have landscape beds close to walls and irrigation heads that wet the foundation daily. Wet weather forces ants indoors seeking dry spots.
Signs of structural ants
Look for fine wood shavings, called frass, below baseboards, window sills or on attic floors. A soft rustling in the walls and large winged ants in spring suggest a colony has matured. Moisture trouble nearly always accompanies a carpenter ant nest inside a house, so finding and fixing the leak is as important as treating the colony.
Professional approach
A licensed technician identifies the ants, traces the trail back to its source and chooses between baits, residual treatments and direct nest treatment. Fire ant mounds are commonly treated with baits and drench products. For carpenter ants, the nest may be in a tree outside or in a wall void, and treatment may involve dust or foam injection. Perimeter sprays around foundations, doors and windows help prevent re-entry. Follow-up visits are common because ant colonies can include multiple nests.
Reduce the attraction
- Wipe counters daily and store sugary foods in sealed jars.
- Prune trees and shrubs so they do not touch the house.
- Keep gutters clear and fix leaks quickly.
- Pull back mulch and pine straw several inches from the siding.
- Seal cracks around windows, doors and pipe penetrations.
Getting matched
PestMinistry is a referral service. Call (844) 725-1661 and we will connect you with an independent licensed pest provider in our network that treats ants in Raleigh, who will handle inspection and treatment.
Raleigh ant questions
Why do ants appear in winter in Raleigh?
Warm spells or heated walls can activate colonies, and indoor nests may stay active year round.
Are fire ants dangerous?
Their stings can cause painful welts and occasionally severe reactions. Avoid disturbing mounds and call for treatment.
Can I tell carpenter ants from termites?
Ants have narrow waists and bent antennae; termites have broad waists and straight antennae.
Will baits make ants worse at first?
You may see more activity at first as workers feed on the bait. That is normal, and the colony declines after.