Can I replace a broken hardwired smoke detector by myself, or does it need to be done by a certified repairman/electrician to rid myself of liability if something goes wrong? I live in Nevada.

Bonus: can I replace an old hardwired smoke detector with a battery only one?

  • 1
    What does your lease say about repairs done by tenants? Aug 28, 2021 at 4:20
  • @BlueDogRanch the lease does not specify anything about repairs done by tenants. It only specifies that I need to change the battery. I asked the owner and he seemed OK with it, but I'd like more reassurance.
    – elk487
    Aug 28, 2021 at 4:23

1 Answer 1


All electrical wiring must be by a licensed electrician. If it plugs in, anyone can do it, if you need a screwdriver it has to be an electrician.

All domestic smoke detectors must be hard wired with battery backup and, if there’s more than one in a home they must be interconnected so if one goes off they all go off.

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