How Much Does ADT Home Security Cost?

Published on July 19, 2025 | Prices Last Reviewed for Freshness: February 2026
Written by Alec Pow - Economic & Pricing Investigator | Content Reviewed by CFA Alexander Popinker

Educational content; not financial advice. Prices are estimates; confirm current rates, fees, taxes, and terms with providers or official sources.

ADT pairs professional monitoring with smart-home gear under one brand. The company sells both Self Setup boxes and white-glove installs. That dual model means the real amount you pay shifts with each device, contract length, and service level.

ADT quotes vary because hardware, monthly monitoring, and one-time setup charges combine differently for every home. Missing one line item can tip a tight budget into surprise expense. This guide maps every cost, from the first deposit to the final bill, so shoppers can judge the long-term value. Follow the detailed breakdown below to match the right plan to the right budget.

Article Insights

• Starter equipment begins at $199; full bundles reach $1,449.
• Professional installation runs $99–$150, often waived with a 36-month plan.
• Monitoring rates start at $34.99 monthly and climb to $82.14 with full video.
• Early cancellation hits owners with 75 % of the remaining contract balance.
• Seasonal promotions cut upfront cost by up to 50 %.
• DIY Self Setup plus app monitoring totals about $499 for year one.

How Much Does ADT Home Security Cost?

ADT packages span from $199 DIY starter kits to full-service bundles that exceed $1,449 plus $82.14 monthly monitoring. The wide price spread reflects equipment size, installation fee, and monitoring tier.

We analyzed current ADT sheets and dealer invoices. Standard equipment bundles start at $599 and top out near $1,449. Those packages ship with a touch panel, three entry sensors, one motion sensor, and a siren. Buyers who choose ADT Self Setup pay $199 for the base kit, then $99–$249 for smart cameras or extra door contacts.

Individual device prices run:

• Yale smart lock: $279
• Wireless smoke detector: $99
• Outdoor Google Nest Cam: $199

Larger homes often add six to eight extra sensors. At $25–$35 each, those parts raise the hardware total by $150–$280. Factor that into any early quote to keep the balance honest.

According to sources like Nerdwallet and HomeGuide, the most basic ADT packages start at $269 for equipment if you opt for self-setup, while professionally installed systems start at $599 and can go up to $1,449 for the most comprehensive bundles. Monthly professional monitoring fees range from $24.99 to $49.99 for DIY packages, and from $45.99 to $82.14 for professionally installed systems, depending on the level of service and features you select.

For example, the entry-level “Security Starter” package costs $349 for equipment and requires a $29.99/month monitoring plan, while the “Video Essentials” package is $529 for equipment and $39.99/month for monitoring (DIY) or $49.99/month (pro install). The most advanced “Total Safety” package is $1,574 for equipment, with monitoring fees on the higher end of the scale. All professionally installed systems require a 36-month contract (24 months in California).

SafeHome argues that additional costs may include installation fees (starting at $100), and optional add-ons such as cameras, smart locks, or environmental sensors. ADT frequently offers promotional discounts, which can reduce upfront equipment costs, especially for new customers.

Installation Fees and Options

Professional installation lists at $99–$150. Many ADT dealers waive that charge after a 36-month monitoring agreement. Self-Setup owners skip labor costs entirely, tightening the upfront payment.

Data from three regional invoices shows:

• Texas pro install: $99
• New York pro install: $149
• Florida Self Setup: $0

Remember that pro installs trigger a binding contract. A renter who needs flexibility may prefer the zero-labor DIY path even if the equipment price rises slightly.

ADT Monitoring Plans

ADT sells four tiers of monitoring. Each carries a recurring monthly fee:

Contracts for Secure, Smart, and Complete run 36 months. Self-Setup users go month-to-month after the first billing cycle, avoiding a long-term commitment but paying a higher rate for similar video storage.

Sample Package Cost Scenarios

Basic Secure Plan
Upfront: $599 hardware + $99 install = $698
Recurring: $34.99 monthly × 36 = $1,259
Three-year total: $1,957

Smart Plan, 9-piece kit
Upfront: $919 hardware + waived install
Recurring: $49.99 monthly × 36 = $1,799
Three-year total: $2,718

Self Setup DIY
Kit: $199
Recurring: $24.99 monthly × 12 = $300
One-year total: $499

These numbers highlight how a small change in plan or hardware count adjusts both upfront charges and long-term expense.

You might also like our articles about the cost of a Vivint Security system, CPI security, or Home Watch services.

Optional Add-Ons and Accessories

Here are five frequent add-ons that raise the invoice:

1. Smart devices – light modules or plugs cost $49–$99 each.
2. Video doorbell – ADT|Nest model lists at $199 and bumps the monthly video fee.
3. Indoor camera – starts at $99 per unit.
4. Carbon-monoxide detector – $120 plus a $2 monitoring surcharge.
5. Extended warranty – $7 monthly for rapid device swap.

Adding two cameras and a CO sensor can lift a starter Secure Plan by over $220 upfront and $4 per month, shifting the three-year total by nearly $364.

Factors That Influence ADT Pricing

We found four big drivers behind every final bill. Extra entry points need more sensors, increasing both hardware rate and monitoring tier if cameras join the mix. Choosing professional installation adds the fee but grants lifetime labor support. Upgrading to app control or live video requires the Smart or Complete Plan, stepping the monthly amount from $34.99 to at least $49.99. Finally, the 36-month term locks a base price, yet an early move or cancellation triggers a hefty charge that erases short-term savings.

Long-Term Ownership Costs

A typical Smart Plan owner spends $919 upfront. Add $49.99 monthly monitoring and the three-year expense reaches $2,718. Replace two sensor batteries and one camera charger every 18 months at $60 combined, and the out-of-pocket total approaches $2,838.

Self-Setup users face lower commitments: $199 hardware plus $24.99 monthly equals $499 in year one. Even if batteries, cellular backup, or service calls cost $80 in year two, the two-year balance stays near $659, under half of a contract plan’s spend.

How ADT Compares to Other Brands

SimpliSafe charges $17.99–$27.99 monthly and never locks customers into contracts, but equipment financing carries a small markup if buyers skip cash-upfront. Vivint matches ADT’s $49–$63 monthly range and promotes equipment loans over outright purchase, shifting the payment burden forward. Ring Protect offers camera plans at $10 monthly yet leans on self-monitoring, leaving true dispatch support optional. ADT competes on brand trust, nationwide installers, and a UL-listed monitoring backbone—assets that justify the higher price for risk-averse homeowners.

Hidden Costs and Considerations

Early termination stands out: cancel a 36-month Secure Plan at month 20 and ADT bills 75 % of the remaining balance. Buyers also report price lifts at renewal, with Secure rising by $3–$5 monthly after the promo phase. Remote areas sometimes add a $29 shipping surcharge for replacement parts. Finally, the 30-day return window on Self Setup kits demands fast decisions; miss it and only a partial refund applies.

Expert Tips and Buyer Insights

Irie Shanklin, senior analyst at Sentinel Forensics, advises negotiating seasonal deals: “Fourth-quarter promos trim hardware by up to 50 %—time the purchase and pocket real savings.”
Ruairí Pendergast, CEO of SecureHome Brokers, suggests requesting a custom sensor count rather than default bundles to avoid hidden markup.
Elettra Vaughn, former ADT installer, notes that adding a single wired keypad during the first visit costs $120; adding it later runs $180 because a second truck roll carries another labor charge.

Answers to Common Questions

Is equipment financing available through ADT?

Yes. ADT offers third-party loans with zero-interest terms on approved credit, pushing the hardware payment into monthly installments instead of one large deposit.

Do ADT plans include maintenance visits?

Only Complete Plan subscribers receive one free technician visit per contract year. Others pay a $99 trip fee for onsite repairs.

Will insurance companies give a premium discount for ADT service?

Many carriers credit policyholders between 5 % and 15 % for professionally monitored alarms. Provide the ADT certificate after install to claim the deduction.

Can ADT reuse existing sensors from another system?

Often. Z-Wave or 345 MHz sensors pair with new panels, saving about $25 per reused device, though a fresh battery charge may still apply.

How soon does monitoring begin after installation?

Professional installs activate the same day. Self Setup kits start once the user finishes app pairing and pays the first monthly charge.