Hard-wired · Interconnected · Tested

Smoke alarm installation & replacement

Hard-wired and interconnected smoke alarms installed, replaced and tested, so the whole house hears it when one goes off.

Smoke alarm installed on a ceiling

Smoke alarms save lives, but only if they work. Every NSW home must have working smoke alarms, and landlords have extra obligations to keep them in working order. Alarms also wear out: most manufacturers say to replace them every ten years.

We install hard-wired alarms, replace old and faulty ones, and set up interconnected systems so that when one alarm sounds, they all do. That matters most in two-storey homes and bedrooms at the other end of the house.

Smoke alarms

Time to call us when

  • Alarms are more than ten years old, or you do not know how old they are
  • An alarm chirps, false-alarms or will not stop sounding
  • You are renovating, extending or adding bedrooms
  • You are a landlord or short-stay host and need alarms checked and recorded
  • You want alarms interconnected so the whole house hears them
What you get

What we do

01

Hard-wired alarms

Mains-powered alarms with battery backup, installed in the right places.

02

Interconnection

Alarms linked by wire or wireless, so one going off sets them all off.

03

Replacements

Old, expired or faulty alarms swapped out, matched to your existing wiring where possible.

04

Testing and records

Every alarm tested, with a record you can keep for your tenancy or insurance files.

05

Nuisance alarms sorted

Chirping and false alarms tracked down and fixed.

06

Combined with other work

Done during a renovation or alongside other jobs, so it is one visit.

How it works

Three steps, no surprises

  1. Tell us about the job

    A few quick taps on our quote form and a couple of photos. It takes about two minutes.

  2. Get a fixed price

    Nate comes back with an upfront price, or a quick question if something needs checking.

  3. Done properly

    Neat work, tested with calibrated instruments and certified, with paperwork where it is needed.

Start my quote

Why NG Electrics

Why people choose us for smoke alarms

Licensed electricians

Not just testers or installers. If something fails or needs fixing, we can sort it on the spot.

Results you can prove

Readings are captured digitally and stored, so you get a report and not just a tick on an invoice.

The best test gear

Fluke TruTest software, a thermal camera and the Metrel DeltaPAT 3309 BT come to every relevant job.

Fixed, upfront prices

A free quote before we start, with no hidden extras.

Planned around you

We book in times that suit and work in sections where needed, so your home or business keeps running.

Local since 2014

Based in Katoomba and on the road across the Mountains and Penrith every day.

Google reviews

What customers say about our smoke alarms

5.0
120 Google reviews
★★★★★
“Nathan is friendly and easy going. He was very quick to respond to an issue we were having with some smoke alarms. Would recommend him to anyone looking for electrical work.”
Nathanael “Howetodrum” Howe
2025 · Google
★★★★★
“Nathan and team have always provided our short term rental business with prompt and terrific support. Highly recommend their services!”
D K
2025 · Google
★★★★★
“What can I say! Nathan as an electrician is recommended, good work attitude and fair price and goes beyond what is required. Nathan as a person is godsend. We are so glad we found him for our complete (indoor and outdoor) renovation job in Katoomba.”
Chotto Bit
Katoomba · 2024 · Google

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Questions

Smoke alarms: FAQs

How often should smoke alarms be replaced?

Most manufacturers recommend replacing smoke alarms every ten years. The date is usually printed on the back of the alarm. If you cannot find it, it is probably time.

What does interconnected mean?

The alarms are linked, so when one detects smoke, every alarm in the house sounds. It gives you far more warning, especially if a fire starts away from the bedrooms.

I am a landlord. Can you check our rental?

Yes. We test the alarms, replace any that are faulty or out of date, and give you a record of what was done.

Get a quote for smoke alarms

Answer a few quick questions, add a photo or two, and Nate comes back with a price. It takes about two minutes and beats waiting for a call back.

Start my quote
  • No obligation, upfront price
  • Photos mean faster, firmer quotes
  • Urgent jobs are looked at first
Emergency? CallGet a quote or book a job