IRS Security Systems provides custom security solutions in London, Ontario and across Southwestern Ontario. With over 35 years of experience, we install and service security cameras, alarm systems, smoke/fire/flood/CO detectors, access control, home automation, and 24/7 monitoring. We serve London, St. Thomas, Strathroy, Ingersoll, Aylmer, and surrounding areas. Our reliable Canadian-made systems protect homes, businesses, and national retail chains. Free estimates, high-quality products, and expert service.