Best Home Security Companies in St. Louis

Why These Home Security Companies?

Our goal is to connect people with the best local experts. We scored St. Louis Home Security Companies on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.

Reviewed Curated Top Picks 97 68 26

Our Selection Criteria:

  • 1. Availability

    Consistently approachable and responsive, so customers never feel ignored.

  • 2. Qualifications

    Building customer confidence with licensing, accreditations, and awards.

  • 3. Reputation

    A history of delighted customers and outstanding service.

  • 4. Experience

    Masters of their craft, based on years of practical experience and education.

  • 5. Professionalism

    Providing service with honesty, reliability, and respect.

Read more about our selection process

Arden Technologies

Arden Technologies is a locally owned low-voltage and security system installation company serving the residents of Saint Louis, Missouri, and the surrounding area. The company primarily has residential clients, and it installs custom security systems that include contact switches on exterior doors, motion detectors, a high-decibel siren, and video surveillance. In addition to offering smoke and carbon monoxide detectors, Arden Technologies provides its clients with professional full-time alarm and fire monitoring.

PO Box 158
Florissant, MO 63032


Knightwatch Communications

Knightwatch Communications is a low-voltage and security system installation company that has been serving the residents of Saint Louis, Missouri, for more than 45 years. The company primarily serves business clients, and its security systems include network and analog closed circuit cameras, intrusion alarms, commercial smoke and carbon monoxide detectors, and biometric, fingerprint, and card reader access control. Knightwatch Communications also performs regular testing and maintenance on equipment the company installed.

3232 Clifton Ave
Saint Louis, MO 63139