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September 18, 2025

Ant Control in Westchester County: Carpenter Ants and Pavement Ants in Suburban Homes

Ant Control in Westchester County: Carpenter Ants and Pavement Ants in Suburban Homes

Ant Control in Westchester County: Carpenter Ants and Pavement Ants in Suburban Homes

Ant season in Westchester County is predictable: every spring, pavement ants invade kitchens across Scarsdale, Bronxville, Larchmont, and Pelham. For most homeowners, this is a seasonal pavement ant problem. But for Westchester's older homes, the more serious threat comes from carpenter ants — a species that can silently damage your home's wood structure over years.

Pavement Ants in Westchester County

Pavement ants are the small dark ants — about 1/8 inch long — most common in towns like Mamaroneck, Pelham, Larchmont, Dobbs Ferry, and Ardsley where slab foundations and older concrete driveways provide ideal nesting habitat. They enter through the smallest gaps in spring, laying chemical trails to food sources.

Why DIY fails:

  • Consumer bait products are often insufficient to eliminate large, established colonies
  • Contact sprays kill foragers but have no effect on the queen or underground colony
  • Without addressing the colony beneath the slab, foragers return within days

Carpenter Ants: A Serious Structural Threat in Westchester Homes

Carpenter ants excavate galleries inside moist or softened wood, ejecting frass — a sawdust-like material — near the nest. In Westchester County's older neighborhoods — the colonials and Tudors of Scarsdale, the pre-war estates of Bronxville, the older housing of Larchmont and Dobbs Ferry — this is a genuine structural threat.

Risk factors in Westchester homes:

  • Age of structure — older homes have more moisture intrusion and wood degradation opportunities
  • Wood-to-soil contact — deck posts, lattice, and fence boards touching soil provide moisture and nesting sites
  • Adjacent woodlands — properties bordering wooded areas or parks often have satellite colonies entering from tree stumps
  • Previous water damage — any structurally compromised wood is vulnerable

Signs of carpenter ant infestation:

  • Coarse, sawdust-like frass near wooden beams, window sills, or deck boards
  • Large black ants (1/4 to 1/2 inch) observed inside, particularly at night
  • Hollow sound when tapping structural wood
  • Flying swarmers emerging from within the house in spring

Spring Ant Season: When to Call

The optimal time for ant treatment in Westchester County is early spring — March through May — before colonies are fully active. For carpenter ants specifically, a late-winter inspection of your attic, basement, and crawl space can identify early-stage infestations before significant structural damage occurs.

Professional Ant Control in Westchester County

Hello Pest Control provides comprehensive ant inspection and treatment throughout Westchester County, including Scarsdale, Bronxville, Larchmont, Pelham, Mamaroneck, Dobbs Ferry, and Ardsley.

Don't let ants take over your Westchester home this spring. Call Hello Pest Control at (888) 973-7839 to schedule an ant inspection and treatment today.

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