With forested hillsides, frequent rain and many wood-built houses, Asheville is natural territory for carpenter ants. Add the smaller kitchen species that swarm every time the weather turns, and ant control becomes a recurring chore for Blue Ridge homeowners. The good news is that the right strategy, matched to the species, is usually straightforward.
Meet the ants of Asheville
Black carpenter ants, large and often seen foraging at night, excavate damp or decayed wood for their nests. Odorous house ants are small, brown and smell like rotten coconut when crushed; they trail in long lines to sweets. Pavement ants nest under driveways, patios and slab edges, and often push soil crumbs out of cracks. Citronella ants, which smell of lemon and nest in wet soil and rotten stumps, appear in spring swarms that unsettle homeowners. Fire ants are not a significant concern at this elevation, though they are found in lower parts of the state.
What invites ants into Asheville homes
- Constant rain and fog that leave wood trim, decks and porch posts damp.
- Large trees overhanging the roof, with branches touching shingles.
- Mulch and landscaping timbers against stone or brick foundations.
- Firewood piles stacked beside the house, popular carpenter ant nest sites.
- Leaky windows or poor flashing on older Craftsman and Victorian homes.
Carpenter ants in older houses
Historic homes in Montford, Albemarle Park and Biltmore Forest often have original wood windows, porch columns, and fascia that are prone to moisture. A carpenter ant colony may nest in a rotting porch beam and send satellite colonies into the attic or a bathroom wall. Signs include fine sawdust piles, faint rustling in walls, and large winged ants indoors in spring. A provider will trace the foraging line, probe for hollow wood and correct the moisture source, which is as important as treating the ants.
Smaller invaders in kitchens
For odorous house and pavement ants, bait is generally more effective than spray, because it travels back to the queens. Technicians will place bait stations along trails and apply an exterior perimeter treatment around foundations, door frames and utility lines. In apartments, gaps around plumbing under kitchen sinks are common routes. Persistence matters, since new colonies move in when old ones are removed.
Timing in the mountains
Asheville ant activity starts later than in the lowlands and lasts through October. Spring carpenter ant swarms and the first kitchen trails usually appear once daytime highs settle into the sixties, so that is the best window for inspection and perimeter work. After a wet summer, expect a second wave from colonies relocating out of saturated soil.
Ways to cut ant traffic
- Cut back tree limbs and shrubs that bridge to the roof.
- Replace rotted trim and seal around window frames.
- Keep firewood stacks away from the foundation.
- Clean up honey, syrup and pet food residue each day.
- Clear gutters and fix downspouts that dump onto the foundation.
Getting connected
PestMinistry is a referral service, not a pest control company. Call (844) 725-1661 and we will connect you with an independent licensed provider in our network who serves Asheville.
Are carpenter ants as bad as termites?
They usually damage wood more slowly, but a large colony can still weaken structural timber. Treat the nest and the moisture source promptly.
Why do I see winged ants in spring?
Mature colonies release reproductive swarmers in warm weather. Indoors, they can signal a nearby nest and should be identified.
Do ants disappear in winter?
Outdoor colonies go dormant, but colonies nesting inside heated walls may remain active, so winter sightings deserve a closer look.