Best smoke alarm installers in Castle Hill

Best smoke alarm installers in Castle Hill, ranked

1. 

   #1Hello Electrical for smoke alarms fitted with other electrical work

   Licence publishedBased in Belrose

   Hello Electrical | Electrician Sydney is an electrical business based in Belrose that lists smoke alarm installation among its services, alongside switchboard upgrades, LED lighting and solar. It publishes licence 393456C and describes itself as a level 2 ASP electrician. Its office and crews work Monday to Friday, 7am to 5pm, with no after-hours cover listed, so send an alarm fault at night to a 24/7 business. Free, fixed-price quotes are offered, so ask for the figure in writing before work begins.

2. 

   #2ECS Electrical Services NSW for after-hours faults and smoke alarm installs

   24/7Based in Baulkham Hills

   ECS Electrical Services NSW is based in Baulkham Hills and covers Castle Hill, and it lists smoke alarm installation alongside fault finding, switchboard upgrades and ceiling fans. The business lists 24/7 emergency cover, and two customers found the team quick to answer calls made after hours. It calls itself licensed and insured but gives no licence number, so ask for it when you book. Ring the office before booking: staff go over the job by phone before an electrician is sent.

3. 

   #3McIntosh Electrical Pty Ltd for 24/7 call-outs and a published licence

   24/7Licence publishedBased in Lane Cove West

   McIntosh Electrical Pty Ltd is an electrical business based in Lane Cove West that lists smoke alarm installation with switchboard upgrades, safety switches and strata maintenance. Its site shows contractor licence 209287C on each page, so the number is easy to confirm. Calls can be placed at any hour, and the firm aims to attend the same day for power cuts and burning odours. Planned jobs go through the enquiry form, and Castle Hill is among the suburbs it serves.

4. 

   #4Alan Oxford's Plumbing and Electrical for smoke alarms with plumbing on the same call

   24/7

   Alan Oxford's Plumbing and Electrical is based in Castle Hill and does electrical and plumbing work under one name. Its electrical side lists smoke alarm installation, switchboard upgrades and outdoor lighting, and its emergency call-outs run around the clock, seven days a week. The page shows no licence number, so ask the office for one before any work. New customers get a $0 service call and seniors get 10 percent off, the business says.

5. 

   #5O'Brien Electrical for urgent calls from a Castle Hill base

   24/7

   O'Brien Electrical is a Castle Hill electrical business that lists smoke alarm installation alongside fault finding, rewiring and CCTV. Urgent jobs are taken day and night, weekends included, while weekday office hours run 8am to 4:30pm. Messages left outside office hours may not be seen until the next business day, so call rather than email when an alarm is beeping at night. Its page gives no licence number, and it offers upfront pricing with a free, no-obligation quote.

Compare smoke alarm installers in Castle Hill

The table sets the businesses side by side on where they are based, emergency cover and whether a licence number is published.

24/7* : listed as open 24 hours, but the business doesn't say 24/7 itself. Ratings show from 5 Google reviews.

How we picked smoke alarm installers in Castle Hill

Placement follows a score that blends each business's customer feedback, giving more weight to businesses with many reviews. Those that state their own after-hours work, publish a licence number, sit in Castle Hill or name smoke alarms on their own pages come first.