When one alarm goes off, every alarm in the house should go off with it. We replace old hardwired detectors, add new ones where they are missing, and link them so the whole house hears.
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Next Phase Electric installs and replaces hardwired smoke and carbon monoxide detectors in homes across South King and Pierce County. Hardwired detectors run on house power with a battery backup, and they are interconnected, so one going off sets off all of them. Smoke alarms belong in every bedroom, outside each sleeping area and on every level. Washington requires carbon monoxide alarms outside each sleeping area and on each level, and a seller has to install them before the buyer moves in. Smoke alarms should be replaced ten years after the date printed on the back. Replacing existing detectors is usually an hour or two; adding new ones with new wiring takes longer.
From one chirping unit to a whole house of linked alarms.
Past ten years, chirping, or yellowed with age. Brands use different plugs and do not talk to each other, so we replace the set with one matching brand.
A bedroom with no alarm, or a level with none. We add hardwired ones, or wireless-linked ones where running a wire is not practical.
One unit that senses both, outside the bedrooms and on each level. The CO alarm Washington requires, without a second device on the ceiling.
Detectors that alert your phone when you are away. Wired the same way, with the app set up before we leave.
Three things that make it work when it matters.
Every alarm wired, or wirelessly linked, to every other one, so a fire in the basement wakes the bedrooms. Mixed brands usually cannot do this.
In each bedroom, in the hall outside them and on every level, away from kitchens and bathrooms where steam and cooking set off false alarms.
Hardwired detectors run on house power and keep a battery for outages. Sealed ten-year batteries mean no more chirping at 3 a.m.
Both detect smoke. Only one warns the whole house.
| Battery-only | Hardwired, interconnected | |
|---|---|---|
| Power | A battery you have to remember to change. | House power, with a battery backup. |
| When one goes off | Only that one sounds. | Every alarm in the house sounds. |
| Chirping | Every time the battery runs low. | Rarely, with sealed ten-year backup batteries. |
| Best for | A room where wiring is not practical. | Every bedroom, hallway and level. |
Replacing detectors before a sale or a rental inspection? Tell us when you book, with the number of bedrooms and floors.
Licensed, bonded and insured. Background-checked crew.
Tell us how many detectors you have, how many floors and bedrooms, and whether they are wired or battery. A technician reaches out within 1 business hour.
Where alarms are missing, whether the existing wiring links them, and what is practical to add. Exact price before any work.
Every alarm installed, linked and tested at once, so you hear the whole house go off.
Three things set the price: how many detectors, whether they replace existing wired ones or need new wiring, and how easy the attic is to reach. Swapping existing hardwired units is the shortest job. You get the exact price before any work starts.
Every ten years from the date printed on the back. Carbon monoxide alarms usually last seven to ten years; the replace-by date is on the label.
Usually a low backup battery, or a detector at the end of its life. If it keeps chirping after a new battery, check the date on the back. If they all go off together for no reason, one failing unit is usually setting off the rest.
Yes. Washington requires CO alarms outside each sleeping area and on each level of a home. Owner-occupied homes from before mid-2009 can wait until they are sold, but the seller has to install them before the buyer moves in.
A like-for-like swap on the same brand is a simple job. Changing brands, adding alarms or wiring new ones is where an electrician comes in, because the interconnect has to match.
Yes. We run a new wire from the nearest detector where the attic allows it, or use a wireless-linked unit that talks to the wired ones.
Yes. We wire them like any other hardwired detector and set up the app and alerts before we leave.
Book online or call. Tell us how many you have.