Smoke & CO Detector Installation Near You in Northern California

California requires hardwired, interconnected smoke detectors in every bedroom, outside each sleeping area, and on every level of the home including the basement. CO detectors are required outside each sleeping area and on every level with a fuel-burning appliance. A typical 3-bedroom Sacramento home needs 5–7 detectors.

Hardwired smoke detector installation costs $100–$300 per unit in Sacramento, depending on accessibility and whether wiring exists. Replacing existing hardwired units is cheaper ($75–$125 per unit). A full-house installation of 5–7 interconnected detectors typically runs $500–$1,200.

Hardwired detectors are interconnected — when one detects smoke, all alarms in the house sound simultaneously. They also have battery backup. Battery-only detectors work independently and rely on you to replace batteries. California requires hardwired detectors for all new construction and major renovations.

Smoke detectors should be replaced every 10 years, CO detectors every 5–7 years. Most have a manufacture date on the back. Detectors that chirp even with fresh batteries are usually past their lifespan. We can inspect and replace all your home's detectors in a single visit.