Ants are social insects; they live in colonies and serve primarily to find food for the queen. Killing one or a few makes little difference, especially if there is a significant colony nearby. The key to getting rid of ants is to take your means of extermination to their colony.
Our exterminators know where to look for active ant trails. We use non-repellent technology, laying bait along these active trails where the ants pick it up and take it back to the colony. There, the entire colony is exterminated.
Our free consultation includes a preliminary evaluation and recommendations for the next steps. If your situation is critical, we may recommend an emergency treatment then and there. Of course, the decision is yours.