Home / Packages
St. Louis ADT plans · $99 install on many
ADT Security Packages and Prices in St. Louis, MO
Secure+ $53.99, Smart+ $63.99 (most popular), Complete+ $74.99. $99 install on many plans. Free alarm-system promo ($850 value) on qualifying monitoring*. Same ADT 24/7 watch on every plan.
What every St. Louis plan actually includes
Professional SafeStreets installation, ADT 24/7 monitoring, and a system counted for this address. Ask about cellular backup so the panel still reaches ADT if Ameren Missouri or the internet drops. St. Louis and most of the county sit on Ameren Missouri. Cuivre River Electric Cooperative covers some St. Charles lots.
ADT Secure+
Adds smoke or carbon monoxide
$53.99/mo*
$99 install
- Secure-level intrusion monitoring
- 1 smoke or carbon monoxide detector
- ADT app on your phone
- Professional install and test
- Good first upgrade
ADT Smart+
Most popular
$63.99/mo*
Smart lock, thermostat, or garage*
- Secure-level intrusion monitoring
- Smart lock, thermostat, or garage*
- Arm and disarm from your phone
- Alerts when a door opens
- Schedule lights and locks
ADT Complete+
Video and cameras
$74.99/mo*
Cameras available · some installs higher
- Indoor and outdoor cameras*
- Doorbell camera options
- Video in the ADT app
- Smart home plus cameras
- Best fit for larger homes
*With $99 installation charge and a new monitoring agreement. Early termination fee applies. Equipment counts and some Complete+ camera packages vary. Ask on the quote call.
The $850 equipment credit, said in plain English
On qualifying new monitoring, many St. Louis homeowners get a free professionally installed alarm system valued at $850*. That is equipment credit on a new 36-month agreement — not a box of sensors in the garage. Ask on the call whether your address qualifies. $99 install still applies on many plans. Homeowners only.
ADT Secure+ · $53.99/mo*
Doors, windows, 24/7 monitoring, and the app. The honest first number if you want the house watched, including the garage walk-through.
ADT Secure+ · $53.99/mo*
Adds a monitored smoke or carbon monoxide detector. A common step on Soulard bungalows, Lafayette Square two-stories, and Hill ranches.
ADT Smart+ · $63.99/mo*
The plan most St. Louis orders pick. A smart lock, thermostat, or garage on the same app, so you can arm from I-64, I-70, or Clayton.
ADT Complete+ · $74.99/mo*
Adds a doorbell and cameras in the app. The usual step after boxes keep walking off the porch. Some camera packages have a higher install.
What you will hear on the quote call
The monthly number on this page is the monitoring plan. Equipment credits and the $99 install are promotional and require a new monitoring agreement — typically 36 months — with early termination fees. Inside the City of St. Louis, ARFAM registration is $25. Unincorporated county Chapter 720 bills $25 per false alarm. St. Charles is a one-time $25 registration. Other desks confirm from the ZIP. Offers are for homeowners.