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Home / Home & kitchen / Home Security Systems / ADT
7.2 Tested Aug 24, 2026 by Team RankingRight

ADT (Professionally installed, 36-month) review 2026

A century-old monitoring network with professional installation, a six-month theft guarantee and the industry's widest police-response relationships

PriceFrom $599 · checked Sep 11, 2026
Median alarm response34 s
Three-year total2399 $

Is the ADT Worth It?

Best professionally installed system. ADT earns its reputation on the monitoring network and the installer who sets it up properly, and for a large house that is worth something. The contract is the price, and it is a real one.

ADT Pros & Cons

Pros
  • 34-second median response from a network of redundant monitoring centres
  • A technician installs, tests and explains the whole system
  • Theft protection guarantee: up to $500 of your insurance deductible
  • Nest cameras and doorbells integrate properly
Cons
  • $2,399 over three years, more than twice SimpliSafe
  • 36-month contract with early-termination liability of 75% of the remaining term
  • Pricing is quoted on a sales call rather than published

ADT at a Glance

7.2 Editor Score
Monitoring responseMedian seconds from alarm to the monitoring centre calling us, across ten triggered alarms, plus backup cellular and battery behaviour when we cut power and internet.
28/30
Equipment & coverageSensor range and reliability, cameras, doorbell, smoke and water detection, and what the starter kit actually covers.
18/20
Installation & appTime to install the same eight-sensor layout, app quality, automations and smart-home integrations.
12/15
Contract termsContract length, cancellation, whether you own the equipment, price rises after the first year.
6/15
ValueEquipment cost plus three years of monitoring for the same eight-sensor layout.
8/20
Reader ratingNo reader ratings yet — not part of the score
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Own one? Rate it:

Rubric v1: Monitoring response 30 · Equipment & coverage 20 · Installation & app 15 · Contract terms 15 · Value 20. Score = Σ ÷ 10, locked Sep 11, 2026. How we rank.

Where to buy — prices checked Sep 11, 2026

ADT — $599

Best priceVisit Site

ADT specifications

Starter kit599 USD
Monitoring49.99 USD/mo
Three-year total2399 USD
Median response (our test)34 s
No contractNo (36 months)
DIY installNo (Self Setup line excepted)
CamerasYes, Google Nest
Smart homeGoogle Nest ecosystem
Self-monitoring optionNo

Why it scored 7.2

ADT earns its reputation on the monitoring network and the installer who sets it up properly, and for a large house that is worth something. The contract is the price, and it is a real one.

Where it loses

Contract terms; cost.

Still the right pick for

Large homes and anyone who wants it installed for them.

Changelog: Sep 11 — rank 3 → 4; Sep 11 — rank 4 → 5; Sep 11 — rank 5 → 6; Sep 11 — rank 6 → 7 · all changes

ADT7.2 · $599
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