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Ant Control

Carpenter Ants.
Stopped at the Source.

Carpenter ants are one of the most destructive insects in Ontario silently hollowing out the wood in your home. XtermaPro locates the colony and eliminates it completely.

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Identification

Ontario's Largest Ant

Carpenter ants are the largest ants found in Ontario, ranging from 6-25mm. They're typically black or black and red. Unlike termites, they don't eat wood they excavate it to build galleries for nesting, leaving behind piles of sawdust-like frass. A mature colony can contain thousands of workers.

Signs of Infestation

Carpenter ants are often discovered too late. Watch for:

  • Large black ants especially winged ones indoors in spring
  • Piles of sawdust (frass) near wood structures
  • Rustling sounds inside walls at night
  • Window or door frames that suddenly stick (moisture damage)
  • Hollow-sounding wood when tapped
  • Winged swarmers around windows in spring
Health & Safety

Structural Damage Risk

Carpenter ant damage accumulates slowly but can be extensive. Colonies in structural beams, window frames, and wall voids weaken the wood over years, sometimes requiring costly repairs. A single satellite colony is a sign of a larger parent colony nearby often located in decaying exterior wood.

Our Treatment

Colony Elimination, Not Just Suppression

Surface sprays only kill foraging workers the colony survives. Our treatment locates the nest using inspection and baiting techniques, then applies targeted professional treatments that are carried back and eliminate the entire colony. We also identify and advise on moisture issues that attract carpenter ants.

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Why XtermaPro

What Sets Us Apart

Licensed & Certified

Fully licensed Ontario exterminators meeting every provincial pest control standard.

Same-Day Service

We respond fast. Same-day and emergency appointments available 24/7.

Unmarked Vehicles

Our vehicles are plain and unmarked your neighbours won't know a thing.

Service Guarantee

If the problem persists after treatment, we come back. That's our promise. Learn more →

Family & Pet Safe

Targeted treatments tough on pests and safe for your household.

No Hidden Fees

Transparent pricing always. We explain exactly what we're doing before we start.

Related Pests

We Also Treat

Carpenter Ant FAQ

Carpenter ants are large, usually 6 to 12 mm long, and black, reddish, or black and red. You will often see them at night, find fine sawdust (called frass) below wood trim, or hear a faint rustling in walls. Winged swarmers indoors in spring are a strong sign of a mature nest.

Yes. Unlike termites, carpenter ants do not eat wood, but they hollow it out to build nests. Over years this weakens framing, door sills, window frames, and deck posts. Early treatment prevents the expensive structural repairs that come with mature colonies.

They nest in moist or previously damaged wood. If the colony is tied to a leaking window sill, a roof with ice dam history, or a damp basement post, killing the visible ants does not solve the problem. We locate the parent nest and address the moisture source as part of the treatment plan.

Yes. We use targeted gel baits and low toxicity residuals in cracks, voids, and along ant trails, not broadcast sprays in living areas. Pets and kids can return to treated rooms once surfaces are dry.

Most homes see a sharp drop in activity within 7 to 14 days and are fully cleared within 30 days. Colonies are often split between an outdoor parent nest and satellite indoor nests, so a follow up visit is included to verify the parent nest is dead.

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