How much does a home security system cost?
Home security system installation runs $250 for a basic DIY kit, $650 for a typical professionally-installed package with cameras, and $2,500+ for premium full-property monitored systems with smart locks and glass-break sensors.
Quick price points (2026)
| Scope | Cost | What it includes |
|---|---|---|
| Low | $250 | installed |
| Typical | $650 | installed |
| High | $2,500 | installed |
How to budget for this project
- Get 3 quotes
Get itemized quotes from at least three licensed contractors in your area.
- Adjust for your region
Compare the same scope and account for regional labor and permitting.
- Add 10–15% contingency
Hidden conditions, code upgrades and permit fees can increase the original quote.
- Plan the cash, not the financing
Build the replacement cost into the home's repair plan before the work becomes an emergency.