Last updated: 2026-05-04 | BC Pest Solutions | Call: (647) 366-4818
Ant Control in British Columbia
You find a trail of large black ants marching along your baseboard. You spray. They disappear for a day. Then they are back. That is because you killed the scouts, not the colony. If those are carpenter ants, the colony is inside your wall right now, tunnelling through the wood that holds your home together.
British Columbia's coastal climate is a carpenter ant paradise. Year-round rainfall keeps exterior wood damp. Older homes built with cedar framing give these ants exactly the soft, moist wood they need to excavate galleries. A mature colony can contain 10,000 to 20,000 workers and produces satellite colonies that spread throughout your home. A colony untreated for 2 to 3 years can compromise deck posts, window headers, roof rafters, and load-bearing walls. The critical difference between carpenter ant treatment and other ant treatment is that you must kill the colony, not the trail. Our technicians use moisture meters, thermal imaging, and experience-based inspection to locate the nest before applying treatment.
How Does BC Pest Solutions Treat This Pest?
- Inspection and species identification using moisture meters and visual inspection of window frames, deck posts, roof edges, crawlspaces, and tree stumps
- Colony-targeted treatment: for carpenter ants, we inject treatment directly into the colony through drill points in the affected wood
- Perimeter barrier: residual exterior barrier around foundation and entry points, lasts 60 to 90 days
- Follow-up and warranty: return visit to confirm elimination, multi-year warranty on carpenter ant treatments
How Much Does Ant Control Cost in BC? (2026 Pricing)
| Method | Price | Best For |
|---|---|---|
| Full colony injection | $1,300–$1,500 | Established carpenter ant colonies |
| Perimeter barrier spray | $295–$325 | Nuisance ants, prevention |
| Interior bait + gel | $200–$350 | Kitchen/bathroom ant trails |
| Full home program | $1,500–$1,800 | Severe or multi-colony infestations |
Frequently Asked Questions
How much does ant control cost in BC?
Carpenter ant colony injection runs $1,300–$1,500. Perimeter barrier treatments run $295–$325. Full home programs with injection + barrier + follow-up run $1,500–$1,800.
Are ant treatments safe for pets?
Yes. We use low-toxicity, pet-safe products. Keep pets away from treated surfaces until dry, typically 30 to 60 minutes.
How long until carpenter ants are gone?
Colony collapse takes 2 to 3 weeks because the transfer products need time to reach the queen deep inside the nest. Our 14-day follow-up confirms elimination.