Detector Inspector NSW: Is a Smoke Alarm Subscription Service Worth It for Landlords?

What Subscription Services Charge

Detector Inspector, one of the largest smoke alarm compliance providers in Australia, charges around $119 per year per property for basic smoke alarm testing. Their Safer Home Plan, which bundles electrical safety and gas checks, runs $239–$349 per year.

Competing services like Smoke Alarm Solutions charge differently — typically $109 per alarm plus $189 for installation or service visits.

For a single-property landlord, that is $119 to $349 per year for a service that involves pressing a test button and checking a manufacture date. Over a 10-year smoke alarm lifecycle, you are looking at $1,190 to $3,490 in subscription costs for one property.

What NSW Law Actually Requires

NSW smoke alarm rules under Clauses 14–17 of the Residential Tenancies Regulation 2019 require:

• Working smoke alarms installed on every level of the property
• Alarms must be replaced within 10 years of their manufacture date
• Defective alarms must be repaired or replaced within 2 business days of the landlord becoming aware
• Alarms must comply with AS 3786. Photoelectric alarms are recommended, but NSW law does not require that sensor type
• Alarms must be hardwired or powered by a non-removable 10-year lithium battery; alarms in buildings constructed or heavily renovated after 1 May 2014 must also be interconnected
• Give at least 2 business days' written notice to inspect or assess an alarm; give at least 1 hour's notice to repair or replace it

The law does not require you to use a third-party service. It does not mandate a compliance certificate for smoke alarms. It does not require an electrician to test a battery-operated alarm.

When You Can Do It Yourself

If your rental property has battery-powered standalone smoke alarms (the majority of older detached houses), the annual test is straightforward:

1. Press and hold the test button for 5 seconds
2. Confirm a loud siren sounds
3. Check the manufacture date on the unit — replace if approaching 10 years
4. If the alarm has a user-replaceable battery and it is flat, replace it; a landlord must do this within 2 business days of becoming aware
5. Record the test date, alarm location, and outcome

You or your property manager can do this during a routine inspection. No special tools, no licence, no subscription.

When You Need a Licensed Electrician

Hardwired smoke alarms — those connected to the property's mains electrical system — are different. Any work on a hardwired alarm (replacement, wiring modification, adding interconnected units) constitutes electrical work under the Home Building Act 1989 and requires a licensed electrician.

If your property has hardwired alarms:

• Annual testing (pressing the button) can still be done by anyone
• Replacing a faulty hardwired unit requires a licensed electrician
• The electrician should issue a Certificate of Compliance Electrical Work (CCEW) for the replacement

For strata properties where alarms may be interconnected with the building's fire detection system, always use a licensed electrician. Interfering with a communal system without proper licensing could affect the entire building's fire safety certification.

The Value Proposition of Subscription Services

Subscription services offer three things:

1. Dispatch convenience — they book the technician, arrange access, and handle the scheduling. For landlords who live interstate or overseas, this removes a logistical burden.
2. Documentation — they provide a digital report after each visit, which serves as evidence of compliance. Useful at NCAT if a dispute arises.
3. Documentation, not liability transfer — a provider can document a visit, but engaging one does not transfer the landlord's statutory responsibility. A service report may help show what was checked and when.

For a portfolio landlord managing multiple properties across different states, the convenience and documentation may justify the cost. For a single-property self-managing landlord in NSW who visits the property quarterly for routine inspections, pressing a test button and writing the date in a logbook achieves the same compliance outcome at no cost.

The Property Owners Association Alternative

The Property Owners Association of NSW (POA NSW) offers membership at approximately $150–$300 per year, providing legislative updates, template documents, and general tenancy guidance. Unlike smoke alarm services, POA membership covers a broader range of landlord compliance topics.

Whether POA membership adds value depends on how you source your compliance information. If you already use a comprehensive compliance guide and stay current with NSW Fair Trading updates, the membership may duplicate what you already have.

Making the Decision

Ask yourself three questions:

1. Are your alarms hardwired or battery? Battery alarms need annual testing (you can do this) and 10-year replacement (anyone can swap a battery alarm). Hardwired alarms need a licensed electrician for replacement only.
2. Do you inspect the property yourself? If you attend quarterly inspections, adding a smoke alarm test takes 5 minutes. If you never visit the property, a subscription service or your property manager handles it.
3. How many properties do you manage? One property — do it yourself during inspections. Five or more properties across different regions — a subscription service or a property manager's bulk inspection contract may save time.

The statutory obligation is the same regardless of who does the testing. The NSW compliance guide includes a printable smoke alarm record log that tracks test dates, manufacture dates, and replacement schedules — the same documentation a subscription service provides, without the annual fee.

See more New South Wales guides →