Yes, garage security systems are effective in preventing break-ins. They act as a deterrent by alerting you and authorities to unauthorized entry attempts. Features like motion sensors, cameras, and alarms increase the security of your garage, making it less attractive to potential intruders. Additionally, smart security systems allow for remote monitoring, giving you real-time updates and control over your garage's security. Properly installed and maintained, these systems significantly enhance the protection of your property and belongings.