Carpenter Ant Extermination — Montréal South Shore

Carpenter ants don't eat wood — they tunnel through it to build a nest, usually in wood that's damp or already damaged. A few ants in summer isn't unusual; ants in winter mean a colony is already established indoors.

Signs to look for

  • Large black ants, 6 to 12 mm long
  • Small piles of fine sawdust near baseboards or trim
  • A faint rustling sound inside walls
  • Winged ants indoors, a sign of a mature nest

Why it matters

An untreated colony can weaken wood structure over time, particularly around windows, joists and foundations.

Our approach

We locate the nest — usually invisible to the eye — and treat it at the source instead of just clearing the ants you can see.

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Frequently Asked Questions

How do you treat carpenter ants?

We locate the nest — usually invisible to the eye — and treat it at the source instead of just clearing the ants you can see.

What are the signs of carpenter ants?

large black ants, 6 to 12 mm long, small piles of fine sawdust near baseboards or trim, a faint rustling sound inside walls and winged ants indoors, a sign of a mature nest.

Is the treatment guaranteed?

Yes. If the problem persists after treatment, we return to your home at no charge.

Why act quickly?

An untreated colony can weaken wood structure over time, particularly around windows, joists and foundations.

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