She has a passion for lifestyle topic... The average cost of an ADT alarm system is $513.59, not including monthly monitoring plans or the installation. Homes that don’t fit the cookie-cutter ...

Read more about our advertising policy. The average cost of an internet plan is $40–$80, before equipment fees, taxes and surcharges, based on our analysis of over two dozen of the most popular ...

Let’s cut to the chase: ADT costs between $390 and $1,000 for equipment, and its monitoring packages cost $25 or $35 per month (ADT just slashed their monthly prices). There’s nuance to this ...