For over 20 years, the founder of First Defense Alarms has provided full-service residential and commercial security, with thousands of burglar alarms protecting homes and businesses across Oklahoma. We believe that prevention and protection are the foundations of keeping your family, your home, and your business safe and secure. In addition to installing security systems, our experienced team provides servicing and monitoring of your existing burglar alarm, regardless of make, model or age. With 24-hour monitoring, state-of-the-art technology, and a highly qualified team of technicians and support staff, you can rest assured knowing that your home is receiving the highest standards of protection.