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Smart Home Security: How Alarm Systems Have Changed in the Last 18 Years

AJAX Alarm Alert showing on smart watch

When we started fitting alarms 18 years ago, most domestic systems were “bells-only”: loud siren, phone tree, fingers crossed. Today’s systems are smarter, faster and far easier to live with—without losing that loud deterrent.

From loud boxes to live alerts.
Modern alarms send instant notifications to your phone, let you arm/disarm remotely, and integrate with cameras and doorbells. Add professional monitoring and you get verification, priority response instructions and calmer decision-making during stressful moments.

Evidence-based protection.
Independent research finds CCTV reduces crime modestly overall, and it works best when it’s targeted and combined with other measures—exactly what integrated alarm + CCTV systems deliver. Source: Campbell Systematic Reviews

What’s changed under the hood:

  • Smart sensors: pet-friendly PIRs, shock sensors for windows/doors, and outdoor detectors to catch garden movement before someone reaches the house.
  • Secure connectivity: dual-path signalling (broadband + cellular) keeps systems online.
  • Better images: HD/4K, wide dynamic range and proper night vision make footage usable.
  • Privacy controls: masking and permissions so you protect your perimeter while respecting neighbours.
  • Accredited installation: NSI/SSAIB-aligned systems with documented commissioning and maintenance—good for reliability and often helpful when talking to insurers. Source: NSI

Why now still matters, even as burglary trends improve.
Burglary is down 70% vs. 2003, but the remaining incidents still cause serious cost and disruption. Getting ahead with layered security (alarm, CCTV, locks, lighting) is simpler—and smarter—than reacting afterwards. Source: ONS | Home Office

Insurance reality check.
Some providers may reduce your premium for a properly installed, accredited system, but there’s no universal discount—it depends on the insurer and policy. Always declare your system and use it. Source: ABI