Photoelectric vs Ionisation Smoke Alarms
Compare photoelectric and ionisation smoke alarm technology — detection capability, false alarm rates, regulatory compliance, cost, and which type is required in Australia.
Winner
Brooks
Best overall option once average cost, coverage, and support reputation are weighed together.
Average Gap
$239
Difference in average pricing across overlapping smoke alarm services.
Market Range
$25 - $920
The full low-to-high range across both providers.
Brisbane, QLD · Est. 2001
From
$60
Average
$295
Coverage
9 areas
Best for: Landlords and property managers wanting fast, competitively priced smoke alarm compliance packages with valid compliance certificates across multiple properties and cities.
Review Smoke Alarm SolutionsSydney, NSW · Est. 1936
From
$25
Average
$56
Coverage
9 areas
Best for: Electricians, builders, and tradespeople sourcing quality AS 3786-compliant smoke, heat, and CO alarms for residential and commercial installation work.
Review BrooksSide-by-Side Price Comparison
Compare overlapping service types directly so the right price anchor is clear before you request quotes.
| Service | Smoke Alarm Solutions | Brooks | Difference |
|---|---|---|---|
| Photoelectric Smoke Alarm Supply + Install | $115 | N/A | - |
| Interconnected System (3-bedroom house) | $620 | N/A | - |
| Rental Property Compliance Package | $360 | N/A | - |
| Smoke Alarm Annual Testing Service | $85 | N/A | - |
| Photoelectric Smoke Alarm (supply only) | N/A | $42 | - |
| Hardwired Photoelectric Alarm (supply only) | N/A | $72 | - |
| Heat Alarm (supply only) | N/A | $48 | - |
| Carbon Monoxide Detector (supply only) | N/A | $60 | - |
Pros & Cons
Smoke Alarm Solutions
Pros
- ✓Australia's largest smoke alarm specialist with national coverage across all metro areas
- ✓Fast online booking with same-week availability in most capital cities
- ✓Issues compliance certificates valid for rental property legal requirements
Cons
- ✗Battery and wireless alarm focus — hardwired installations require a partnered electrician
- ✗Franchise model means quality can vary slightly between regions
Brooks
WinnerPros
- ✓Longest-established Australian fire safety manufacturer with 90 years of heritage
- ✓Wide distribution through hardware stores, electrical wholesalers, and online
- ✓Full range including smoke, heat, CO detectors, and combination units compliant with AS 3786
Cons
- ✗Supply only — does not provide installation services
- ✗Installation must be sourced separately from a licensed electrician or specialist installer
Bottom Line
Verdict
Photoelectric alarms are the only compliant option for new installations in Australia. They detect slow smouldering fires earlier than ionisation alarms and produce significantly fewer false alarms from cooking or steam. Ionisation alarms are faster at detecting fast flaming fires but are more prone to false alarms and are no longer approved for new residential installations under Australian regulations. Any ionisation alarms in a property must be replaced with photoelectric models to achieve compliance.
Choose photoelectric alarms for all new installations and replacements in Australia — they are both legally required and the superior technology for residential use. If your home still has old ionisation alarms (typically white or off-white disc units over 10 years old), arrange a whole-house upgrade to interconnected photoelectric alarms. The cost of $400–$1,100 for a whole-house upgrade is a once-in-a-decade investment in compliant fire protection.
Comparison FAQ
Brooks is cheaper on average in this comparison, but the right answer depends on your specific smoke alarm requirements including alarm type, interconnection method, property size, and whether a compliance certificate is required.
Alarm type (photoelectric is required by law), interconnection method (hardwired or wireless), number of alarms needed, whether a compliance certificate is included, and whether hardwired installation requires a licensed electrician usually affect the total cost more than a blended average. Always confirm what is included in the quote and whether a compliance certificate will be issued.
Choose photoelectric alarms for all new installations and replacements in Australia — they are both legally required and the superior technology for residential use. If your home still has old ionisation alarms (typically white or off-white disc units over 10 years old), arrange a whole-house upgrade to interconnected photoelectric alarms. The cost of $400–$1,100 for a whole-house upgrade is a once-in-a-decade investment in compliant fire protection.