We noticed small areas of Ant activity around our patio door. Called Durham Regional Pest Control and after a couple of questions from them, it was determined that it was not carpenter ants. As we just had a new stone patio and stairs installed, he thought it might be a different type pf ant. An appointment was made and they arrived on time and after a small inspection, it confirmed their suspicions and an application was applied. We've had a summer free of ants. The gentleman was Courteous and polite and respectful of our home. We have recommended them on two occasions. WELL DONE