5 Best Home Security Systems in Houston (2026)

Smith Thompson Home Security and Alarm Houston is a Texas alarm company that has offered wireless monitored home security since 1978, and it leads with a pitch few competitors match: the same $16.95 monthly monitoring rate for over 42 years, with no term contract required on any plan. It installs new systems, takes over existing DSC and Honeywell panels customers already own, and layers on 24/7 cellular and Wi-Fi monitoring plus an arm/disarm app on its upgraded tiers. It is a Texas-focused operator, not a national chain, and pitches itself as the largest home alarm company built around not needing to lock customers in.

Alert 360 Home & Business Security serves Stafford and South Houston out of its Exchange Drive office, operating under a national brand with local technicians, offering home security systems, business monitoring, and smart automation. Its site emphasizes Five Diamond-certified 24/7 monitoring and verified alarm response, and it covers both residential and light commercial jobs from the same crew. Founded as a security business tracing back to the 1970s, it now runs as a modern managed-monitoring provider with mobile app control layered onto sensors and cameras.

Allied Home Security & Alarm Monitoring Houston installs and monitors residential alarm systems across the city, advertising $19.95 monthly monitoring with $0 same-day installation and free equipment on new systems. It handles the sales-to-install pipeline in house, walking customers through package options, contract length, and equipment before scheduling a technician, and it covers both new builds and system replacements. The company positions itself as a straightforward, no-pressure alternative to the bigger national brands.

Archangel Alarm Services started in 2006 as a family-owned fire alarm monitoring company in Humble and has since expanded into residential and commercial security, selling and monitoring its own systems across Harris County and Houston. It serves close to a thousand clients, handling everything from new installs to rewiring cameras into decades-old homes, and offers app-controlled thermostats and smart home add-ons alongside standard alarm monitoring. The company has 24/7 monitoring on both fire and security lines.

Houston Security Cameras Installers, doing business as BBS Security, focuses on security camera and surveillance installation across commercial and residential properties in Houston, with more than 15 years in CCTV work. It designs and installs custom video surveillance for warehouses, hotels, retail stores, restaurants, and homes, and also offers wireless solutions and license plate recognition systems for higher-end setups. While it leans commercial in its marketing, its Google reviews include plenty of residential camera jobs.