Keymaster Physical Security and Access Control, based in Hamilton, Ontario, for over 30 years, has grown to be among one of the largest residential and commercial security service providers in the country. We design, install and maintain technology-based systems that reduce risk, increase efficiency and ensure compliance, including best-in-class access control, video surveillance, intrusion systems, intelligent video analytics, and new medical marijuana security technologies designed to protect end-user clients across Canada. Our fully trained and accredited team provides quick response, top quality repair and maintenance services, as well as a host of retail products from door hardware to safes, vaults and everything in-between. Keymaster has grown to be among the largest security service providers in the country and proud to be trusted experts for all your security needs.