About ADT ADT provides home security and alarm systems with devices like entry sensors, motion detection, smoke alarms and leak detectors to help ensure your home, family and belongings are protected ...

ADT has undergone some big changes over the last two years, all of them designed to make it easier – and more affordable – to install an ADT system. For instance, an ADT equipment package used to cost ...

If you’ve heard of one home security company, it’s probably ADT. The company, with its famous blue logo, has been in business for 145 years, making it the oldest home security company in the United ...