Like most home security companies, there are a number of ADT monitoring packages to choose from. In addition to monthly monitoring costs, you also need to consider: Equipment costs Activation fees Installation costs Upgrades you want (like cameras, medical alert, etc.) Because ADT offers so many options and upgrades, it’s easy to end up with a customized ADT package that is more expensive than its competitors. Just be sure to keep a tally as you work with an ADT security pro to put together the right package for your home. If budget constraints are a factor, let your representative know up front how much you can afford.