Home Security Cost in Saint Louis, MO in 2026
Most Home Security projects in Saint Louis, MO cost between $400 and $3,600. The typical price is $1,200.
Labour and materials in Saint Louis run about 4% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Number of doors, windows and cameras covered
- Wired versus wireless sensors
- Professional monitoring contract
- Smart lock and video doorbell integration
Usually included
- Panel, sensors and cameras
- Installation and configuration
- App setup and walkthrough
Usually extra
- Monthly monitoring fees
- Electrical work for hardwired cameras
- Network upgrades
Home security installers in Saint Louis, MO
Businesses listed on Google near Saint Louis, MO. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
ABF Security
4.4(313 reviews)
507 Rudder Rd, Fenton, MO 63026
Citywide Alarms
4.8(128 reviews)
7733 Forsyth Blvd #1100, St. Louis, MO 63105
Westco Security & Technology Systems
4.9(103 reviews)
215 Chesterfield Industrial Blvd, Chesterfield, MO 63005
St Louis Alarm Co
5.0(80 reviews)
244 Indacom Dr, St Peters, MO 63376
iTrue Connect - Security
4.9(39 reviews)
4340 Marshall Ave, St. Louis, MO 63134
ACF Alarm Company
4.7(45 reviews)
9021 Riverview Dr, St. Louis, MO 63137