Home Security System Cost Estimator
Estimate your total home security system cost including equipment, installation, and annual monitoring fees based on your home size and security needs.
Formulas Used
Equipment Cost:
- Control Panel: $150 (flat)
- Door Sensors: Doors × $20
- Window Sensors: Windows × $15
- Motion Detectors: ⌈Sq Ft ÷ 500⌉ × $35
- Cameras: Outdoor Cameras × $120 + Indoor Cameras × $60 (60% outdoor, 40% indoor split)
- Siren: $40 (flat)
- Keypads: Doors × $60
- Smart Home Add-on: $300 (if selected)
Installation Cost (Professional): (2 + Total Devices × 0.25) hours × $85/hr
Installation Cost (DIY): $20 (supplies)
Annual Monitoring: Monthly Rate × 12 — Rates: None=$0, Basic=$15, Standard=$30, Premium=$50/mo
Total Contract Cost: (Equipment + Installation) + (Annual Monitoring × Contract Years)
Average Monthly Cost: Total Contract Cost ÷ (Contract Years × 12)
Assumptions & References
- Equipment prices are average retail estimates based on mid-range consumer security products (ADT, Ring, SimpliSafe, Vivint pricing benchmarks, 2024).
- One motion detector is assumed per 500 sq ft of living space as a standard coverage guideline.
- 60% of cameras are assumed to be outdoor (higher cost) and 40% indoor, reflecting typical residential deployments.
- Professional installation labor is estimated at $85/hour with 15 minutes per device, consistent with national average electrician/security technician rates (BLS, 2024).
- Monitoring rates reflect industry averages: Basic ~$15/mo (SimpliSafe), Standard ~$30/mo (Ring Protect Pro), Premium ~$50/mo (Vivint/ADT Command).
- Smart home integration cost ($300) covers a smart hub and two smart devices (lock + thermostat) at entry-level pricing.
- Costs do not include permit fees, which vary by municipality ($25–$150 typical).
- Cellular backup, battery backup, and cloud storage subscriptions may add $5–$15/month beyond listed monitoring fees.
- Source: SafeWise Home Security Cost Guide; HomeAdvisor Security System Cost.