How Much Does a Home Security System Cost? (2026)
Last reviewed October 25, 2026
The spread is enormous because there are really three products: DIY kits ($20–$490) with free self-monitoring, smart-home integrated setups ($400–$5,000), and professionally installed systems averaging $750–$4,500 with $25–$50/mo monitoring and multi-year contracts. All bands below come from cited cost guides and published brand pricing.
The three tiers
| Tier | Equipment | Monitoring | Notes |
|---|---|---|---|
| DIY kit (Wyze / Ring / abode / Cove / SimpliSafe) | $20–$490 | $0 self-monitor; $9.99–$26.99/mo pro | Self-install; no contract. SimpliSafe Essentials kit $230–$490; Wyze Sense from $19.98. |
| Smart-home integrated (Nest-class whole-home) | $400–$5,000 | $5–$20/mo | Whole-home integration; Nest Secure-class hardware starts ~$400. |
| Professional installed (ADT / Vivint / Brinks class) | $750–$4,500 national average | $24.99–$49.99/mo | Fixr/security.org national average for pro systems; Vivint monitoring from $24.99/mo, ADT video packages $49.99/mo. |
Published brand pricing
| System | Equipment | Monitoring | Notes |
|---|---|---|---|
| Wyze Sense starter kit | $19.98–$100 | $0 self / $9.99 pro | Least-expensive lane entry; no cellular backup on pro plan. |
| Ring Alarm 5-piece kit | ~$200 | $0 self / $20 pro | Cellular backup included at the pro tier. |
| SimpliSafe The Essentials | $230–$490 | $0 self / $22.99 pro | Popular mid-band DIY pick. |
| Vivint basic system | $600–$844 | from $24.99/mo | Pro-installed, no long contract per dataset row. |
| Brinks Home Complete w/ video | $200–$900 | $29/mo | 36-month contract. |
| ADT video/secure package | $529–$1,100 | $49.99/mo | 36-month contract; the premium mainstream brand. |
Related home costs
Security is one slice of protecting the house: see smoke detector installation cost, standby generator costs, and door installation cost.
FAQ
How much does a home security system cost?
Three tiers: a DIY starter kit runs $20–$490 in equipment with free self-monitoring (pro monitoring $10–$27/mo, no contract); smart-home integrated setups run $400–$5,000; professionally installed systems average $750–$4,500 with monitoring of $25–$50/mo, often on a 36-month contract.
Is professional monitoring worth the monthly fee?
It's the main recurring cost: DIY self-monitoring is $0, while pro monitoring runs $9.99–$49.99/mo depending on brand and tier. The practical difference is dispatch response and cellular backup — for example, Wyze's $9.99 plan lacks cellular backup, while Ring's $20 tier includes it. The right call depends on how often the home is occupied.
Do security systems require a contract?
DIY systems (Wyze, Ring, abode, Cove, SimpliSafe) have no contract. Professional providers commonly use 36-month terms (ADT, Brinks, Alder per our cited rows), with some providers like Vivint listed without a long contract. Early-termination fees are the hidden cost of the pro tier.