Carpenter Ant Control Ottawa
Carpenter ants excavate wood to nest. Treating the colony, not just the ants you see, is what ends it.
What you need to know
Carpenter ants do not eat wood, they excavate it to build nests, and they prefer wood that is damp or already damaged. A few ants indoors can be foragers from a nest outside, but ants in numbers, fine wood shavings, or winged ants in spring point to a colony nearby. Treatment works when the nest and the ant trails are found, not just the ants on your counter.
Covered under the PestPass Plan ($159/visit, quarterly, $636/year) and the One-Time Treatment ($249/visit, 30-day guarantee). See plans & pricing →
Warning signs
- ✓Large black ants indoors, especially at night
- ✓Piles of fine, sawdust-like shavings (frass) below wood or window frames
- ✓Faint rustling or tapping from inside walls
- ✓Winged ants appearing indoors in spring
- ✓Ants trailing along foundations, tree trunks, or utility lines
What to expect
Follow ant trails and check likely nest sites: damp or damaged wood, window frames, decks, and trees touching the house.
Find the parent nest and any satellite nests. Treating only visible ants will not end an established colony.
Treat nest sites, trails, and entry points with products matched to the situation.
We point out moisture problems and wood-to-soil contact that make your home attractive to carpenter ants.