Home Security review · Updated October 2026

ADT Review (2026)

Home security company founded in 1874.

Reviewed by our editorial team · How we rank · Advertising disclosure

The short version

The most established name in professionally installed and monitored security. On our home security comparison, it's labeled Best professional monitoring.

Key facts

InstallProfessional
Monitoring24/7 professional
ContractTypically required

What stands out

  • Professional installation and 24/7 monitoring
  • Smart home and video options
  • Nationwide monitoring centers

Pros and cons

Pros

  • Long track record
  • Full-service setup

Cons

  • Usually requires a contract

How ADT compares

Side-by-side comparison

ADT
SimpliSafe
Vivint
InstallProfessionalDIY (pro optional)Professional
Monitoring24/7 professionalOptional 24/7 plans24/7 professional
ContractTypically requiredNoneFinancing or upfront purchase
Visit siteVisit siteVisit site

Head-to-head comparisons

Alternatives to consider

What to check before you sign up

Whichever home security provider you choose, compare these points:

  • Professional vs. self-monitoring. Professional monitoring dispatches help. Self-monitoring sends alerts to your phone only.
  • Upfront or financed. Some providers bundle equipment into the monthly fee in exchange for a contract.
  • Term and cancellation. Check contract length and early termination fees, especially if you might move.
  • Pro install vs. DIY. DIY kits are cheaper and portable. Professional installs suit wired homes and larger systems.

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