Southern California electrical • solar • energy serviceCall 323-928-8880
Powered by Mr. Cheto ElectricText for service
Service Areas
Popular Services

Smoke & carbon monoxide alarm replacement

Life safety devices that help your family hear the warning.

Smoke and carbon monoxide alarms are life safety devices that provide early warning so your family can act. A chirping, missing or expired alarm deserves more than a battery guess. We check the age, placement, power and compatible interconnection, then give you clear choices for replacement or a coordinated whole-home upgrade. If an alarm is actively sounding for smoke or CO, leave the home and call 911 from a safe location first.

Call 323-928-8880Text project details

How we can help

Common reasons customers call

  • Smoke detector keeps chirping or beeping
  • Expired, missing or failed smoke and CO alarms
  • Hardwired alarm replacement with backup power
  • Compatible interconnected alarms for whole-home audible warning
  • Smart smoke and CO alarms with phone notifications
  • Nest Protect replacement planning with compatible First Alert SC5 equipment
  • Rental turnover and property-manager photo documentation
  • Placement review, testing demonstration and replacement-date records

Clear process

What happens next

  1. 01Tell us your city, number of alarms and whether the sound is a periodic chirp or an active alarm
  2. 02Review model labels, expiration dates, placement, power and interconnection
  3. 03Choose a suitable replacement or whole-home upgrade and approve the quote
  4. 04Install compatible listed life safety devices and verify operation using the manufacturer procedure
  5. 05Demonstrate testing, explain alerts and leave model/date documentation

Choose what fits your home

Life safety choices, explained clearly.

We explain the findings and the work included. You choose the option that fits your priorities before installation begins.

Smart Life Safety & Connected Awareness

For families who want local audible warnings plus phone alerts when compatible smart features are available.

Placement and age review, replacement of 3–5 compatible smart smoke/CO alarms using suitable existing power arrangements, app setup and manufacturer-prescribed testing.

Request an installation quote

Whole-Home Life Safety Renewal

Replace aging devices with a coordinated warning arrangement suited to your home.

Placement and age review, replacement of 3–5 standard listed alarms using suitable existing wiring or permitted battery arrangements, compatible interconnection checks and maintenance handoff.

Request an installation quote

Focused Alarm Restoration

Resolve a failed or expired device while checking what the rest of the home needs.

Replacement of one standard alarm at an accessible existing location, compatibility review, manufacturer-prescribed test and age/placement findings. Additional devices quoted separately.

Request an installation quote

Your installation quote is based on the home layout, required coverage, selected devices, access and existing wiring. The package count does not establish complete coverage. We explain any additional devices, wiring repairs and permit requirements before work. Smart subscriptions, where offered, are separate. Required coverage and correct installation apply to every option.

Questions customers ask

Direct answers before you call.

Where should smoke and carbon monoxide alarms be installed?

Residential smoke alarms generally belong inside bedrooms, outside each separate sleeping area and on additional stories, including basements and habitable attics. CO alarms generally belong outside sleeping areas and on each occupiable level; a bedroom needs CO coverage inside when a fuel-burning appliance is in that room or its attached bathroom. Exact locations and power/interconnect requirements depend on the home, project, code and device instructions.

How often should I test these life safety devices?

NFPA homeowner guidance calls for testing at least monthly. Some manufacturers, including the First Alert SC5 and Kidde/Ring models, require weekly manual testing. Follow the exact installed model's instructions, including cleaning and backup-battery care. Automatic self-checks and an annual service visit do not replace required manual checks.

How old is too old for a smoke or CO alarm?

Smoke alarms generally need replacement at 10 years. CO and combination devices have model-specific service lives, often 7–10 years. Follow the unit's date markings and manual; replace failed or end-of-life devices promptly. A new battery does not restore an expired sensor.

Can you replace Nest Protect with a smart alarm?

Yes, we can review compatible replacement options. Google identifies First Alert SC5 as a compatible replacement for second-generation Nest Protect through Google Home. We confirm the model, interconnection, California approval and availability before quoting. Phone alerts require the specified network and app setup; subscription services vary.

What should I do when a CO alarm is actively sounding?

Leave the home for fresh air immediately and call 911 from a safe location. Do not stay inside to troubleshoot or wait for an electrician. Follow emergency responders' instructions before re-entry. A periodic trouble chirp is different from an active alarm; never assume a warning is only a battery issue.

Does this service include commercial fire-alarm certification?

This page covers residential alarms, including alarms within dwelling units. Panel-connected commercial systems need a separate review of approved plans, compatible equipment and inspection/testing requirements. Required Los Angeles Chief's Regulation 4 testing must be performed by the appropriately certified tester.

Field experience

Know what protects your home—and how to keep it working.

Your investment includes selection, installation, verification and a clear maintenance handoff. Connected alarms can spread the warning throughout the home; smart features can add remote awareness. These devices detect hazards and sound warnings. They do not prevent fires, eliminate carbon monoxide sources or guarantee an escape outcome.

Explore the proof library →

Related help

Keep exploring

Whole-home surge protector installationWhole-home surge protector installation in Los Angeles and Orange County. Panel-mounted protection, surge outlets and clear installation estimates.Open page →Electrical safety inspection and code correctionsElectrical safety evaluations and documented code-correction work for homeowners, buyers, businesses and property managers in Los Angeles and Orange County.Open page →Property management electrical, solar and EV serviceProperty-management electrician for apartment, multifamily, HOA and commercial electrical repair, solar O&M, EV charging and emergency troubleshooting across Los Angeles and Orange County.Open page →Residential electricianLicensed residential electrical troubleshooting, panels, breakers, GFCI outlets, EV charging, solar and battery service across Los Angeles and Orange Counties.Open page →

Manufacturer and safety guidance

Requirements and instructions vary by equipment and project. These resources explain the principles behind our recommendations.

Ready when the problem isn’t.

Request this service.

Call, text a photo or send a short description. We’ll help identify the right next step.

Call 323-928-8880Text photos or detailsEmail project
Tap to Call Eco Solar & Electric323-928-8880