Pest Control in St. Thomas

Identify before you treat. Cluster flies and boxelder bugs swarm south- and west-facing walls every fall. Annoying but harmless, and no spray fixes them long-term - sealing entry points does. Carpenter ants in spring are different: they mean a nest in damp wood and need professional treatment. A good operator diagnoses first and quotes second.

Ask about licensing. Anyone applying pesticides commercially in Ontario must hold a provincial exterminator licence. Ask for the licence number. Legitimate operators provide it the way plumbers provide theirs.

The St. Thomas pattern. Older homes near the downtown core deal with mice every October as temperatures drop, and damp basements after the spring thaw invite carpenter ants. If a company pushes a year-round spray contract for a one-time fall mouse visit, get a second opinion.