Smoke Detector Wiring & Replacement
Smoke Detector Wiring & Replacement in Surprise, AZ
Hardwired, interconnected smoke and CO alarms that work together, installed by a licensed electrician so you don't have to climb the ladder.
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When it's time to call
Chirping that won't stop
A new battery didn't fix it? Hardwired alarms also chirp when they reach end of life or have a wiring fault.
Alarms more than 10 years old
Check the date on the back. Smoke alarm sensors wear out, and manufacturers call for replacement at 10 years.
Alarms that don't sound together
Battery-only or non-interconnected alarms mean a fire in the garage may not wake anyone in the bedrooms.
Selling, renting or remodeling
Inspections and remodel permits often require alarms in every bedroom, outside sleeping areas and on each level.
Every alarm talking to every other
I replace expired alarms with new hardwired units that have battery backup, matched or adapted to your existing wiring so every alarm in the house sounds together.
Where there's no wiring to a bedroom or hallway, I can usually fish new cable through the attic, or use hardwired alarms with wireless interconnect so nothing needs to be opened up. Combination smoke and carbon monoxide alarms go where gas appliances or an attached garage call for them.
Upfront pricingPriced per alarm after a quick walk-through. The estimate is free, and the price is in writing before work starts.

What’s included
- Walk-through of alarm locations and dates
- New hardwired alarms with battery backup
- Interconnection so all alarms sound together
- Combination smoke/CO alarms where needed
- Testing of every alarm before I leave
- Old alarm removal and disposal
Smoke Detector Wiring & Replacement near you
Smoke Detector Wiring & Replacement FAQs
How often should smoke detectors be replaced?
Every 10 years from the manufacture date printed on the back, or sooner if one fails its test. Replacing them all at once keeps the interconnection matched.
Why does my smoke detector keep chirping?
Usually a low backup battery, but hardwired alarms also chirp at end of life or when there's a wiring problem. If a new battery doesn't stop it, the alarm likely needs replacing.
Can you add hardwired alarms to an older home without tearing up walls?
Usually, yes. I fish cable through the attic where possible, or use hardwired alarms with wireless interconnect so every alarm still sounds together.
Do you install carbon monoxide detectors?
Yes. Combination smoke and CO alarms are recommended in homes with gas appliances, a fireplace or an attached garage.
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Call for a free estimate, or send a quick request and I'll get back to you personally.
