ADT has safeguarded American homes since 1874. Today it operates six U.S. monitoring centers for unmatched redundancy and partners with Google Nest to deliver cutting‑edge cameras and smart displays.
ADT offers fully customised, professionally installed alarm systems. The Blue by ADT and ADT Self‑Setup lines cater to DIY users, but the flagship Command & Control package remains its cornerstone, featuring cellular + redundant network paths for alarm signals.
Google Nest cameras, thermostats and smart displays now pair natively with ADT’s app, bringing rich video verification to professional monitoring.
ADT equipment is quoted after a free phone or in‑home consultation. Monitoring fees start at $45.99/mo and vary by package.

The gold standard for pro monitoring
ADT’s six redundant monitoring centers and Google Nest gear make it the most robust professionally installed system we tested.

User sentiment: 4.7/5 average
High marks for technician professionalism and fast alarm response; most negatives refer to contract length.

Still king for whole‑home protection
Decades of experience plus modern smart‑home add‑ons earn ADT our pick for best professional monitoring.

Most trusted name in security
With 140+ years of heritage and the broadest service footprint, ADT remains the household name for professionally monitored security.

Great protection, but pricey contracts
ADT offers unparalleled reliability, but three‑year contracts and higher monthly fees make it best for long‑term homeowners.

Reliable, but smart‑home features lag
ADT’s response times impressed us, yet its app feels dated compared to SimpliSafe or Vivint.

Rock‑solid monitoring, steep cost
ADT remains the Cadillac of alarm services, but the up‑front install fee and 36‑month contract will deter bargain hunters.

Robust monitoring, dated app
During three months of hands-on testing, ADT’s response time was stellar, but its mobile app felt clunky next to newer rivals.

Classic security meets Google Nest
The Google partnership breathes new life into ADT’s ecosystem, bringing slick cameras and displays to a time‑proven platform.

Great protection, but at a premium
ADT’s heritage and Google Nest cameras set it apart, yet 36-month contracts push up long-term cost.