How much does ADT cost? ADT offers three home security system packages, which can be self-setup or professionally installed. The company often runs promotions, discounting self-setup packages with ...

which cost an additional $34.99 to $54.99 apiece. To add no-contract professional monitoring, you'll spend between $6.99 and $24.99 per month. Why we like ADT as a business security system ...

My experience with ADT Security ... to pay the entire cost of it. ADT didn’t offer to uninstall anything. I still have the equipment, and while ADT no longer monitors my system, I can still ...