In Burlington, spring does not officially begin when the calendar says so. It begins when the first line of ants marches across a kitchen counter. After months of frozen ground, colonies that survived the winter in wall voids and stumps spring back to life, and the lakeside humidity of summer keeps them busy. Some of those ants are only a nuisance. Others, the carpenter ants, can quietly damage structural lumber.
PestMinistry is a referral service. We connect callers with independent, licensed ant control providers in our network. We do not treat homes ourselves.
Three ants worth knowing
- Carpenter ants are among the biggest ants in Vermont, often black, and they hollow out moist wood to nest. A wall or porch beam may hide the main colony while satellite nests sit in warm, dry areas.
- Odorous house ants are small brown ants that smell like rotten coconut when crushed. They love sweet spills and can set up many nests in wall voids.
- Pavement ants nest in soil beneath sidewalks, slabs and driveway edges, then enter through foundation cracks.
Occasionally, field ants and Allegheny mound ants show up in lawns, but they rarely cause indoor trouble.
Carpenter ants and older Burlington houses
The Hill Section, the Old North End and other neighborhoods of aging wood-frame houses give carpenter ants plenty of moisture-softened material: a leaky roof valley, a porch where rain pools, window frames with failed caulk, a chimney flashing, even a damp bathroom wall. Large trees that overhang the roof are also a bridge. Telltale signs include coarse frass that looks like pencil shavings, faint rustling in walls on quiet nights and big winged ants indoors in spring.
How the problem is typically solved
- Inspect, trace trails and look for moisture and damaged wood to find the parent nest.
- Match the method to the species: baits for sugar-loving ants, targeted nest treatments and perimeter applications for carpenter ants.
- Correct the moisture cause or the ants return.
- Recheck after a few weeks to confirm activity has stopped.
Spraying the ants you see on the counter feels productive but often makes things worse with odorous house ants, because the colony splits and spreads.
Burlington-friendly prevention
- Trim branches and shrubs that touch the roof or siding.
- Repair leaks quickly and replace rotted trim.
- Move firewood and lumber piles away from the foundation.
- Wipe up honey, juice and pet food spills, and store sugar items in sealed containers.
- Seal cracks around pipes, windows and the foundation.
- Keep mulch thin near the house, since deep mulch holds moisture.
Seasonal timing
Expect trails in April and May, peak activity in June through August, and a late-season push in September as ants seek food and shelter. Winter sightings indoors usually mean a nest within the heated structure, and they deserve prompt attention.
Connect with a licensed provider
Call (844) 725-1661 and we will connect you with an independent licensed provider in the Burlington area.
Frequently asked questions
How do I know if I have carpenter ants?
Look for large black ants, frass piles near walls or windowsills and nearby damp wood. A technician can confirm.
Are carpenter ants the same as termites?
No. Carpenter ants remove wood to make nests and leave it clean, while termites eat wood and leave mud-packed tunnels. Ants are far more common in Vermont.
Why do ants come in after rain?
Heavy rain floods soil nests, sending colonies to look for dry shelter indoors.
Do natural remedies work?
Vinegar can erase scent trails temporarily, but it does not eliminate the colony, so it is not a lasting fix.