Smoke & Carbon Monoxide Detector Installation:
Code & Safety Guide
Complete guide to smoke and carbon monoxide detector installation in Los Angeles. California code requirements.
Safety Guide
Smoke and CO Detector Requirements in Los Angeles
California has strict smoke and carbon monoxide detector requirements.
Code Requirements
California Smoke & CO Detector Requirements
- Smoke Alarms: Every Bedroom
Inside every bedroom and outside each sleeping area. - Smoke Alarms: Every Level
At least one on every level including basements. - CO Alarms: Every Unit
Required in every dwelling with fuel-burning appliance or attached garage. - Interconnection Required
All smoke alarms must be interconnected since 2014. - Hardwired for New Construction
Requires hardwired with 10-year sealed battery backup. - Home Sales Trigger Requirements
Current code compliance required at sale.
Installation Costs
Installation Cost Ranges
| Item | Typical Range |
|---|---|
| Hardwired Smoke Alarm | $150 – $300 per unit |
| Hardwired CO Alarm | $150 – $350 per unit |
| Hardwired Combo Smoke/CO | $175 – $350 per unit |
| 10-Year Sealed Battery (installed) | $100 – $200 per unit |
Costs vary by attic access and wiring.
Related
Related Services & Resources
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