Ajax Alarm Installation in Perth
Perth properties deserve a security system that keeps up with the way you live. SIPKO Security installs Ajax Systems — the world’s most awarded wireless alarm platform — across Greater Perth, from Fremantle cottages to Joondalup warehouses. Fully wireless, app-controlled, and backed by professional monitoring. No lock-in contracts. No hidden costs. Just honest security done properly.
100% Wireless — No Drilling, No Mess, No Damage
Ajax runs on encrypted radio — not your home Wi-Fi. No cables through walls, no conduit runs, no patching plaster. Whether you’re in a 1960s brick-and-tile in Subiaco, a new-build in Ellenbrook, or a strata apartment in South Perth, the install is clean, fast, and completely reversible if you ever move.
Run Your Security From Your Phone — Anywhere
Arm, disarm, and check every sensor from the Ajax app — whether you’re at work in the CBD, on a long weekend in Margaret River, or overseas. Get a push notification the moment a door opens or a motion sensor trips. Real-time control, no subscription required for the app.
Professional 24/7 Monitoring — Perth Response Teams
Connect your Ajax system to an Australian A1-grade monitoring centre with Perth-based response capability. When your alarm fires, a real operator calls you within seconds — not a robot, not an overseas call centre. Police or patrol dispatch available when needed.
Built for Perth Properties — Cottages to Acreage
Perth’s housing stock is unlike anywhere else in Australia — sprawling brick-and-tile homes, large suburban blocks, coastal properties battered by sea air, and a fast-growing apartment market in the inner suburbs. We design every Ajax system around your specific property. From Cottesloe to Rockingham, we’ve got Perth covered.
Schedule Your Installation
Call +61 406 432 691 or complete the form and we will contact you.
Ajax Installation in Perth — Here’s Exactly What Happens on the Day
No surprises, no mystery. Whether you’re in Subiaco, Joondalup, or out in the Hills, here’s what to expect from the moment you call SIPKO Security to the moment we shake your hand and head off. Plain English, start to finish.
The Phone Call — We Actually Listen
You call +61 406 432 691 and you speak to a licensed Ajax technician — not a call centre, not a chatbot. We ask about your property, your suburb, whether you’ve had a previous alarm, and what’s driving the need right now. Burglary concern? Insurance requirement? Rental obligation? We tailor from there. A site visit gets booked at a time that suits you — mornings, afternoons, or Saturdays across Greater Perth. Under WA Consumer Protection licensing rules, every security installer must hold a current WA licence — we’ll always provide ours upfront.
The Free Site Survey — Your Property Gets the Full Once-Over
Our tech rocks up on time, in uniform, with ID. We walk every room, every corridor, every entry point — thinking like someone who wants to get in without triggering your alarm. We map your property against Ajax’s Jeweller radio protocol, check 4G signal strength at the proposed Hub location, and identify any interference zones. Perth’s brick-and-tile homes are generally excellent for Ajax signal — solid brick walls that would kill a Wi-Fi signal barely slow down 868 MHz. We also note pet ownership, lifestyle patterns, and whether you want app-only control or a physical keypad. WA Police crime statistics show which Perth suburbs have the highest break-and-enter rates — we factor that into how we design your coverage.
The Written Quote — Every Device, Every Dollar
You get a proper written quote — not a ballpark figure on a business card. Every Ajax device is listed with its purpose and exact cost. Labour is separated from hardware. Optional monitoring costs are disclosed upfront. GST included. Valid for 30 days — take your time, compare, ask questions. We don’t do high-pressure tactics. Under the Australian Consumer Law, you’re entitled to services delivered with due care and skill — a written quote is part of that.
The Install — Clean, Fast, Zero Wall Damage
We arrive with every device pre-programmed to your system profile. Ajax runs on encrypted 868 MHz radio — no cables through walls, no conduit, no plaster patching. Sensors go on with 3M industrial adhesive or two small screws. A typical 4×2 brick-and-tile in Karrinyup or Canning Vale is done in under 4 hours. Larger acreage properties in the Hills or Serpentine take longer and we schedule accordingly. Every device is tested for signal strength before we move on — nothing gets mounted and left to hope for the best.
Full System Test — Every Sensor, Every Zone, Green Across the Board
We walk-test every single sensor individually. Every door, every window, every motion zone — confirmed in the Ajax app before we sign off. Siren volume tested and compliant with WA Environmental Protection (Noise) Regulations 1997. Dual-path 4G and Wi-Fi both confirmed active. Backup battery runtime verified — minimum 12 hours off mains. If anything isn’t green, we fix it on the spot. The system doesn’t pass until every indicator is right.
The Handover — You’re in Full Control Before We Head Off
We sit down with everyone in the household who needs to use the system and walk through it at your pace. Away mode, Stay mode, how to disarm quickly when you walk in with shopping. How to check the event log at 2am if you get a notification. How to add a family member’s phone. How to temporarily disable a sensor without killing the whole system. Warranty documentation issued — 2-year Ajax manufacturer warranty on all hardware. Our direct number provided — call or text us first if anything needs attention.
Free Site Survey — No Obligation, No Pressure
Book a free on-site assessment across Greater Perth. We come to you, walk your property, and give you a straight quote. You deal with the same technician from first call to final handover — no subcontractors, no surprises.
Call +61 406 432 691Ajax Alarm Costs in Perth — What You Actually Pay
Most alarm companies won’t put pricing on their website. We think that’s a bit dodge. Here’s an honest breakdown of what goes into the cost of an Ajax alarm installation in Perth — hardware, labour, and ongoing monitoring — so you can walk into a quote conversation knowing what’s reasonable.
Important — Please Read: All cost information on this page is a general guide only. Actual prices vary significantly based on your property size, number of sensors required, suburb, access conditions, and chosen monitoring plan. Nothing on this page constitutes a quote or binding price. The only way to get an accurate cost for your Perth property is a free on-site assessment. Pricing is also subject to change — for current rates, see the ACCC’s guidance on service pricing transparency.
What Makes Up the Total Cost?
An Ajax alarm installation in Perth has three separate cost components. Understanding each one helps you compare quotes properly and spot anything that looks off.
1. Hardware — The Ajax Devices
This is the physical equipment: the Hub, sensors, sirens, keypad, and any range extenders. Ajax hardware is manufactured in Europe and priced accordingly — it’s not a budget brand, and that’s reflected in the build quality and warranty. The number of devices your property needs is the biggest variable in your total hardware cost. A studio apartment needs far fewer sensors than a 4×2 on a 700sqm block in Baldivis.
2. Labour — Installation & Configuration
This covers the site survey, physical installation, system programming, commissioning, and handover training. Perth labour rates for licensed security technicians are set by market conditions and reflect the cost of holding a current WA security licence, insurance, and ongoing training. Be cautious of quotes with very low labour costs — it often means the installer is unlicensed or cutting corners on commissioning.
3. Monitoring — Ongoing Monthly Cost
Professional 24/7 monitoring is optional but strongly recommended for most Perth properties. This is a separate ongoing cost paid to an Australian monitoring centre — it’s not included in the installation price. Self-monitoring via the Ajax app is free but relies entirely on you seeing and responding to notifications. Most Perth home insurers require professional monitoring to honour a break-in claim — check your policy.
Typical System Tiers — Entry, Mid & Full Coverage
Rather than quoting dollar figures that may be out of date or irrelevant to your property, here’s how we think about system sizing. Your actual cost depends on which tier fits your property and how many devices it needs.
Entry Coverage
Apartments, small units, single-storey homes with limited entry points
- Ajax Hub 2 (4G) — the central brain
- Door sensors on main entry points
- 1–2 interior motion detectors
- Indoor siren
- KeyPad or app-only control
⚠️ Indicative tier only — actual device count and cost varies. Get a free site survey for an accurate quote.
Mid Coverage
Standard 3–4 bedroom Perth homes, townhouses, small commercial premises
- Ajax Hub 2 (4G)
- Door & window sensors — all ground floor entries
- MotionCam detectors — living areas & hallways
- Indoor + outdoor siren
- KeyPad Plus for convenient arm/disarm
- Pet-immune PIR configuration
⚠️ Indicative tier only — actual device count and cost varies. Get a free site survey for an accurate quote.
Full Coverage
Large homes, acreage, Hills District properties, commercial & multi-zone
- Ajax Hub 2 (4G) + ReX 2 range extender(s)
- Full perimeter — all doors, windows, garage
- MotionCam detectors throughout
- Multiple sirens — indoor & outdoor
- Outdoor motion detectors for large blocks
- Multi-user app access + keypad
- Professional monitoring integration
⚠️ Indicative tier only — actual device count and cost varies. Get a free site survey for an accurate quote.
What Makes Your Perth Installation Cost More or Less?
These are the real variables that move the needle on your final quote — specific to Perth properties and conditions.
Property Size & Number of Entry Points
A 2-bedroom South Perth apartment needs 4–6 sensors. A 5-bedroom acreage property in Serpentine might need 15+. More sensors = more hardware cost. Perth’s large suburban blocks — often 600–800sqm — typically need more coverage than equivalent properties in other cities.
Distance from Perth CBD
Properties in the outer suburbs — Rockingham, Mandurah, Yanchep, or the Hills — may attract a travel component in the labour cost. This is standard practice across Perth trades and should be disclosed upfront in any quote. Under Australian Consumer Law, all costs must be disclosed before work begins.
Strata & Apartment Complexity
Strata installations in Perth are governed by the Strata Titles Act 1985 (WA). If your installation requires body corporate approval or involves common areas, there may be additional coordination time factored into the labour cost. Wireless Ajax installs inside your individual lot typically require no approval and no extra cost.
Existing Alarm System
If you have an old Bosch, Hills, or DSC system, there may be a removal or decommissioning step before Ajax goes in. In some cases existing sensors or cabling can be reused with an Ajax MultiTransmitter — which can reduce hardware costs. We assess this during the free site survey and tell you honestly what’s worth keeping.
Perth’s Climate — Outdoor Device Ratings
Perth summers are brutal — 40°C+ days, intense UV, and coastal salt air in suburbs like Cottesloe, Scarborough, and Rockingham. Outdoor Ajax devices are rated IP55 for weather resistance, but properties in exposed coastal or high-UV locations may benefit from additional mounting considerations that add minor labour time.
Monitoring Plan Choice
Self-monitoring via the Ajax app costs nothing ongoing. Professional 24/7 monitoring is a separate monthly cost paid to an Australian monitoring centre — not to SIPKO. The grade of monitoring (A1, A2, etc.) affects the monthly rate. Most Perth home insurers require A1-grade monitoring for full break-in coverage — check your policy with your insurer before deciding. See AIC research on alarm deterrence for context on why monitoring matters.
A Note on Monitoring Costs
Monitoring is the one ongoing cost in your Ajax system. It’s separate from the installation price and paid directly to the monitoring centre — SIPKO doesn’t mark it up or take a cut. We connect you with flexible, no-lock-in monitoring partners who service Perth.
The monthly cost varies by provider and grade. We’ll give you honest options at the time of quote so you can decide what suits your budget and insurance requirements. Nothing is mandatory — you can always start with app-only monitoring and add professional monitoring later.
⚠️ Monitoring costs are indicative only and subject to change by the monitoring provider. Always confirm current rates directly.
The Only Accurate Price Is One Based on Your Property
Every Perth home and business is different. The fastest way to know what your Ajax installation will actually cost is a free, no-obligation site survey. We come to you, walk the property, and give you a fully itemised written quote — hardware, labour, and monitoring options all separated out. No surprises at invoice time.
Book Your Free Perth Quote — +61 406 432 691Ajax False Alarms in Perth — How to Avoid WA Police Fines
Most Perth homeowners don’t find out about WA’s false alarm charge policy until the invoice arrives. Here’s what you need to know — and how a properly installed Ajax system makes the whole problem go away.
WA Is One of the Few States That Charges for False Alarm Callouts
Under the Security and Related Activities (Control) Act 1996 (WA), WA Police can charge property owners for responding to repeat false alarms from monitored security systems. The charge applies after a set number of false callouts within a rolling period — and it’s not a small amount. Most Perth homeowners only discover this policy after their first invoice. The good news: a correctly installed and calibrated Ajax system virtually eliminates the conditions that cause false alarms in the first place.
How the WA False Alarm Charge System Works
When your monitored alarm triggers and the monitoring centre dispatches WA Police, that callout is logged against your property address. If police respond to a set number of false alarms from the same address within a 12-month period, a charge is issued to the property owner or occupier. The threshold and fee amounts are set by WA Police and are subject to change — always check the current policy directly with WA Police Alarm Systems.
The charge applies regardless of whether you were home, whether you knew the alarm was going off, or whether the monitoring centre tried to contact you first. It’s a strict liability situation — the alarm went off, police responded, and the bill follows.
The most important thing to understand is that this is entirely preventable. False alarms almost always have a specific, fixable cause. An Ajax system that’s been properly installed, calibrated, and configured for Perth’s conditions will rarely — if ever — generate a false callout. The problem isn’t the alarm system concept; it’s poor installation and misconfigured sensors.
Under the WA security licensing framework, licensed installers are required to configure systems to minimise false alarms. If your current alarm is generating repeat false callouts, that’s a sign the original installation wasn’t done properly.
Spiders & Insects on Sensors
Perth’s warm climate means spiders, cockroaches, and moths are active year-round. A spider walking across a PIR lens at 2am looks exactly like a human intruder to an uncalibrated sensor. This is the single most common cause of false alarms in Perth homes.
Perth Summer Heat — Thermal Drift
PIR sensors detect heat movement. On a 42°C Perth summer day, rapid temperature changes from air conditioning cycling on and off, or heat radiating from brick walls, can trigger poorly calibrated sensors. Ajax’s temperature-compensated PIRs handle this — but only if configured correctly for Perth conditions.
Pets Not Configured Correctly
A standard PIR sensor will trigger on a cat or dog. Pet-immune PIRs exist specifically for this — but they need to be configured for your pet’s size and the room layout. A sensor set up for a 5kg cat won’t work correctly for a 30kg Labrador.
Fremantle Doctor & Wind Movement
Perth’s famous afternoon sea breeze — the Fremantle Doctor — can rattle unsecured doors and windows, triggering door contact sensors that aren’t properly aligned or mounted. Coastal suburbs from Cottesloe to Scarborough are particularly affected.
Low Battery Triggering Tamper Alerts
When a wireless sensor’s battery drops below a threshold, some systems generate a tamper or fault alert that can be misread as an intrusion event. Ajax sends low-battery warnings to your phone well before this point — but only if the system was set up correctly.
Perth Summer Heat — The False Alarm Factor Nobody Talks About
Perth is one of the hottest capital cities in Australia. The Bureau of Meteorology records Perth as regularly exceeding 40°C in summer, with some suburbs in the eastern corridor — Midland, Armadale, Kelmscott — regularly hitting 44–45°C. That extreme heat creates specific false alarm risks that simply don’t exist in Melbourne or Sydney.
Standard PIR sensors are calibrated for a temperate climate. In Perth’s summer, the ambient temperature inside an unoccupied brick-and-tile home can reach 38–40°C before the air conditioning kicks in. When the AC activates, it creates a rapid temperature differential that some sensors interpret as human movement. This is called thermal drift, and it’s a well-documented cause of false alarms in hot climates.
Ajax’s MotionProtect sensors include temperature compensation specifically designed for this scenario. But they still need to be configured correctly for your property’s thermal profile — which is something we assess during the site survey. See Bureau of Meteorology Perth climate data for context on just how extreme Perth’s temperature range is.
Temperature-Compensated PIR Sensors
Ajax MotionProtect sensors adjust their detection threshold based on ambient temperature — reducing false triggers in Perth’s extreme summer heat.
Correct Sensor Placement Away from AC Vents
Mounting sensors directly in the airflow path of ducted AC vents is a guaranteed false alarm recipe. We map AC vent locations during the site survey and position sensors accordingly.
Entry/Exit Delay Configuration
Properly set entry and exit delays prevent the alarm triggering while you’re still disarming — a common cause of accidental activations in Perth homes with long driveways or double garages.
Spider Deterrent Covers on Outdoor Sensors
Ajax outdoor sensors can be fitted with insect-deterrent covers. Combined with regular cleaning of sensor lenses, this eliminates the spider-trigger problem that plagues Perth homes in summer.
How Ajax MotionCam Eliminates False Police Callouts
Even with perfect calibration, no alarm system is 100% immune to false triggers. Ajax’s MotionCam detector solves the problem at the monitoring centre level — before police are ever dispatched.
Photo Burst on Every Trigger
When a MotionCam sensor detects movement, it captures a series of photos and sends them to the monitoring centre within seconds. The operator sees exactly what caused the trigger — a spider, a pet, a curtain moving in the breeze, or an actual intruder — before deciding whether to dispatch police.
No Dispatch on Non-Threats
If the photo burst shows a spider on the lens or a cat walking through the lounge, the monitoring centre logs the event and contacts you — but does not dispatch police. No callout, no charge, no 2am knock on the door. This is the single most effective way to avoid WA Police false alarm fees.
Evidence When It Is Real
When the trigger is genuine — an actual intruder — the photo burst gives police real evidence before they arrive. It also gives you documentation for an insurance claim. Under Australian Consumer Law, your insurer must handle claims fairly — having visual evidence strengthens your position significantly.
False Alarm Prevention Checklist — What We Do on Every Perth Install
Every Ajax installation we do in Perth includes a false alarm prevention checklist as part of commissioning. Here’s what gets checked before we leave your property.
- Pet-immune PIR sensitivity configured for your specific pet size and breed
- All sensors positioned away from AC vents, ceiling fans, and direct sunlight
- Entry and exit delays set correctly for your property layout and daily routine
- Door and window sensor reed alignment verified — no false tamper from wind movement
- Outdoor sensor lenses cleaned and insect-deterrent covers fitted where needed
- MotionCam photo verification tested with monitoring centre — confirmed working
- All household users trained on correct arm/disarm procedure to prevent accidental triggers
- Low-battery notification confirmed active on all wireless sensors
Common False Alarm Mistakes to Avoid
These are the things that cause most Perth false alarm callouts — and every one of them is preventable with a proper installation.
- Mounting PIR sensors in direct line of AC vents or ceiling fans
- Using standard PIR sensors without pet-immune configuration in homes with animals
- Installing outdoor sensors without insect-deterrent covers in Perth’s summer
- Setting entry/exit delays too short for properties with long driveways or double garages
- Leaving door sensors misaligned so the Fremantle Doctor rattles them open
- Not training all household members on the correct disarm procedure
- Ignoring low-battery warnings until the sensor starts generating fault alerts
- Using a monitoring plan without visual verification — police dispatched blind on every trigger
Already Getting False Alarms? We Can Fix That.
If your current Perth alarm is generating repeat false callouts — whether it’s an old Bosch, Hills, or even an existing Ajax system that wasn’t set up properly — we can diagnose the cause and fix it. Call us for a free assessment before your next WA Police invoice arrives.
Call +61 406 432 691 — Free False Alarm AssessmentAjax Alarm Installation for Perth’s Brick-and-Tile 4×2 Homes
The 4-bedroom, 2-bathroom brick-and-tile on a 600–700sqm block is Perth’s signature housing type. It barely exists anywhere else in Australia — and it creates a very specific set of security challenges that most alarm guides completely ignore. Here’s how Ajax handles it.
What Makes the Perth 4×2 Different from Every Other Australian Home?
Walk down any street in Duncraig, Willetton, Canning Vale, Baldivis, or Ellenbrook and you’ll see the same basic template: a single-storey brick-and-tile home, four bedrooms at the front, open-plan kitchen and living at the rear, double garage on one side, and an alfresco or patio at the back. The block is typically 600–700sqm, the home footprint is around 200–250sqm, and there’s usually a side gate giving access to the rear yard.
This floor plan is so dominant in Perth that the ABS Census consistently shows WA with one of the highest rates of separate house dwelling in Australia — and the vast majority of those are single-storey brick-and-tile on large suburban blocks. It’s a housing type that’s genuinely unique to Perth’s urban sprawl.
From a security perspective, this floor plan has some very specific characteristics that affect how an alarm system should be designed. An installer who doesn’t understand the Perth 4×2 will either over-sensor the property (wasting your money) or under-sensor it (leaving gaps in coverage).
Single storey: No upstairs — all entry points are at ground level, which simplifies perimeter coverage but means every accessible window matters.
Brick cavity walls: Double-brick or brick-veneer construction throughout — excellent for Ajax’s 868 MHz signal, which penetrates brick far better than Wi-Fi-based alarm systems.
Large block with rear access: The side gate and rear yard are common entry points for opportunistic break-ins — often overlooked by installers focused only on the front door.
Double garage: The internal access door from the garage into the home is one of the most commonly missed sensor locations in Perth installations.
Alfresco at the rear: Sliding glass doors from the living area to the alfresco are a high-priority entry point — and one of the most common break-in routes in Perth suburban homes.
The Floor Plan Challenge — Why the Standard Perth Layout Needs a Specific Sensor Strategy
The typical Perth 4×2 has a long, rectangular footprint — bedrooms clustered at the front, living spaces at the rear. This creates a natural security challenge: the Hub needs to communicate with sensors at both ends of the home, through multiple internal walls, while also covering the garage and any outbuildings.
In most Perth 4×2 homes, the optimal Hub location is the central hallway — the corridor that connects the bedroom wing to the living area. This gives the Hub near-equal signal distance to both the front entry sensors and the rear sliding door and alfresco sensors. It’s also typically out of reach without a ladder, which is exactly where you want your Hub.
The rear of the home — the open-plan kitchen, dining, and living area — is where most Perth break-ins occur. WA Police crime statistics consistently show that rear entry via sliding doors and back windows is the most common method of residential break-in in Perth’s suburban LGAs. This is where MotionCam detectors earn their keep — covering the entire open-plan living zone with a single device and providing visual verification if triggered.
The front of the home — bedrooms and the main entry — needs door sensors on the front door and any accessible bedroom windows. In most Perth 4×2 homes, the bedroom windows face the street and are less commonly targeted, but they still need coverage for a complete system.
Rear Sliding Doors & Alfresco Access
The most common break-in entry point in Perth suburban homes. DoorProtect sensor on every sliding door, MotionCam covering the living area behind it.
Internal Garage Access Door
The door from the double garage into the home is frequently left unsensored. An intruder who gets into the garage — via the roller door or side gate — has direct access to the home if this door isn’t covered.
Front Entry Door
Standard DoorProtect sensor. Also the location for the KeyPad Plus for convenient arm/disarm when you arrive home.
Side Gate & Rear Yard Perimeter
For properties where the side gate gives direct rear access, an outdoor MotionProtect Outdoor or curtain sensor on the gate line adds a perimeter layer before anyone reaches the home itself.
Accessible Windows — Bedrooms & Laundry
Ground-floor windows that can be reached without a ladder. DoorProtect sensors on the frames. In most Perth 4×2 homes, this means the laundry window and any bedroom windows not facing a busy street.
Where Does the Ajax Hub Go in a Perth 4×2?
Hub placement in a Perth brick-and-tile is straightforward once you understand the floor plan. Here’s what works and what doesn’t.
✓ Good Hub Locations
- Central hallway wall — equal signal distance to front and rear sensors
- High on the hallway wall, 2.2–2.5m from floor — out of easy reach
- Linen cupboard or utility area if centrally located — concealed and elevated
- Home theatre or study if positioned centrally — internal room, good signal distribution
✗ Avoid These Locations
- Front bedroom — too far from rear sensors, maximises wall penetrations
- Garage — signal blocked by brick wall between garage and home, tamper risk
- Near the NBN connection point — Ethernet interference, signal congestion
- Laundry if at the far rear — good for rear sensors but poor for front coverage
Why Ajax’s 868 MHz Signal Handles Perth Brick Walls Better Than Wi-Fi-Based Alarms
Most budget alarm systems — and some mid-range ones — use your home Wi-Fi network (2.4 GHz or 5 GHz) to communicate between sensors and the Hub. That’s a problem in a Perth brick-and-tile, because Wi-Fi signals are significantly attenuated by brick cavity walls. A sensor two rooms away through two brick walls may have a weak or intermittent connection.
Ajax uses a dedicated 868 MHz radio frequency — the Jeweller protocol — that was specifically chosen for its ability to penetrate dense building materials. At 868 MHz, the signal passes through brick cavity walls with far less attenuation than 2.4 GHz Wi-Fi. In a typical Perth 4×2, a single Ajax Hub placed in the central hallway maintains strong signal to every sensor in the home without needing a range extender.
This matters practically because weak signal = intermittent sensor reporting = potential gaps in your alarm coverage. Ajax’s Jeweller protocol also reports signal strength in real time in the app — you can see exactly how strong the connection is between the Hub and every sensor. If signal drops below a threshold, the system alerts you before it becomes a problem.
Lower frequency = longer wavelength = better penetration through solid materials like brick, concrete, and timber framing. Ajax’s Jeweller protocol was engineered for exactly this.
In a typical Perth 4×2, the Hub-to-sensor distance is rarely more than 20–30m. Ajax’s range is massively over-specified for a standard suburban home — which means signal is never the limiting factor.
The Ajax app shows live signal strength for every device. If a sensor’s signal drops — due to a new piece of furniture, a metal cabinet, or interference — you know immediately.
Ajax detects RF jamming attempts and immediately alerts you and the monitoring centre. Wi-Fi-based alarm systems have no equivalent protection.
How Many Sensors Does a Perth 4×2 Actually Need?
This is the question every Perth homeowner asks. The honest answer is: it depends on your specific floor plan, lifestyle, and how comprehensive you want the coverage to be. But here’s a realistic guide based on the standard Perth 4×2 layout.
| Location | Recommended Device | Priority | Notes |
|---|---|---|---|
| Front entry door | DoorProtect Plus | Essential | Also mount KeyPad Plus here for arm/disarm |
| Rear sliding door(s) to alfresco | DoorProtect Plus | Essential | Most common break-in entry point in Perth suburban homes |
| Internal garage access door | DoorProtect | Essential | Frequently missed — direct home access if garage is breached |
| Open-plan living / dining area | MotionCam | Essential | Covers the entire rear living zone; visual verification prevents false police callouts |
| Central hallway | MotionProtect | Recommended | Catches movement between bedroom wing and living area |
| Laundry window | DoorProtect | Recommended | Often accessible from the side of the property |
| Accessible bedroom windows | DoorProtect | Recommended | Ground-floor windows not facing a busy street |
| Side gate / rear perimeter | MotionProtect Outdoor | Optional | Adds a perimeter layer before anyone reaches the home |
| Outdoor siren | StreetSiren | Recommended | Visible deterrent; audible alert to neighbours |
⚠️ The table above is a general guide only. Actual device requirements vary based on your specific floor plan, lifestyle, and security goals. Some properties need more devices, some need fewer. The only accurate assessment is a free on-site survey of your property.
Got a Perth 4×2? We Know Exactly How to Secure It.
We’ve installed Ajax systems in hundreds of Perth brick-and-tile homes. We know the floor plan, we know the entry points, and we know where the gaps are. Book a free site survey and we’ll walk your property and give you a straight quote — no fluff, no upsell.
Systems we upgrade from:
Upgrading Your Old Perth Alarm to Ajax — The Honest Takeover Guide
If your Perth home has a Bosch Solution, Hills Reliance, or DSC alarm that was installed during the 1990s or 2000s building boom — in suburbs like Duncraig, Willetton, Canning Vale, Karrinyup, or Winthrop — there’s a good chance it’s still technically working but well past its best. The panel is ageing, the sensors are drifting, the monitoring is probably on an old PSTN phone line that no longer exists, and there’s no app, no remote control, and no visual verification.
Upgrading to Ajax doesn’t necessarily mean ripping everything out and starting from scratch. Depending on what you’ve got, some of your existing hardware may be reusable — which can reduce the cost of the upgrade. Here’s exactly how a Perth alarm takeover works.
Under the WA security licensing framework, any installer working on your alarm system must hold a current WA security licence. Always ask for licence details before any work begins — a licensed installer will provide them without hesitation.
What Can Be Reused — and What Can’t
This is the question that determines how much an upgrade costs relative to a fresh install. The Ajax MultiTransmitter is the key device — it allows existing wired sensors from legacy systems to be connected to the Ajax Hub, effectively giving them a new lease of life inside the Ajax ecosystem.
✓ Often Reusable
- Wired PIR motion sensors in good condition
- Wired door and window reed switches
- Existing cable runs between sensors and panel location
- Siren wiring (if in good condition)
- Existing keypad wiring location (for new Ajax keypad)
✗ Almost Always Replaced
- The old control panel (Bosch, Hills, DSC) — replaced by Ajax Hub
- PSTN or old IP communicator — replaced by Ajax 4G module
- Wireless sensors from legacy systems (incompatible RF)
- Old keypad — replaced by Ajax KeyPad Plus
- Ageing PIR sensors with degraded lenses or drift issues
How a Perth Alarm Takeover Works — On the Day
A takeover is a structured process, not a rip-and-replace job. Here’s what happens from the moment we arrive at your Perth property.
Assess the Existing System
We test every sensor, check cable condition, and document what’s installed. We tell you honestly what’s worth keeping and what needs replacing — before we touch anything.
Remove the Old Panel & Communicator
The old Bosch, Hills, or DSC panel comes out. If you have an old PSTN communicator or IP module, that goes too. We notify your existing monitoring centre to cancel the old account.
Install Ajax Hub & Connect Reusable Sensors
The Ajax Hub 2 goes in at the optimal location. Reusable wired sensors connect via the Ajax MultiTransmitter. New wireless sensors are added where needed — no new cable runs required.
Full Test, App Setup & Handover
Every sensor walk-tested. Ajax app set up on your phone. Monitoring centre connected and tested. You’re shown how to use the new system before we head off.
Takeover vs Fresh Install — What’s the Cost Difference?
The honest answer is: it depends on how much of your existing system is reusable. A takeover where most wired sensors are in good condition and can be connected via the Ajax MultiTransmitter will cost less than a full fresh install. A takeover where the old sensors are degraded and need replacing anyway may cost similar to starting from scratch. We assess this during the free site survey and give you a clear breakdown before any work begins.
Sensors in Good Condition — Partial Reuse
If your existing wired PIRs and door sensors are in good working order, we connect them to the Ajax MultiTransmitter. You pay for the new Hub, MultiTransmitter, keypad, siren, and labour — but save on the sensor hardware. This is the most cost-effective upgrade path for Perth homes with well-maintained legacy systems.
Sensors Degraded — Full Replacement
If the existing sensors are old, drifting, or generating false alarms, replacing them with new Ajax wireless sensors is the better long-term decision. The cost is higher upfront but you get a fully modern, fully wireless system with no legacy hardware creating problems down the track.
⚠️ All cost information is indicative only and varies significantly based on your specific system, property, and the condition of existing hardware. The only accurate cost is one based on a free on-site assessment. Under Australian Consumer Law, all costs must be disclosed before work begins.
Got an Old Bosch, Hills, or DSC Alarm in Perth? Let’s Take a Look.
We’ll come out, assess your existing system honestly, and tell you exactly what’s worth keeping and what needs replacing. No obligation, no pressure — just a straight assessment and a written quote. We cover all of Greater Perth.
Book Free Assessment — +61 406 432 691Ajax Alarm Installation for Perth Strata & Apartments — WA Rules & Body Corporate
Perth’s strata market is booming — from South Perth high-rises to Fremantle terrace conversions and inner-city apartments in Northbridge and East Perth. If you’re in a strata property and want to install an Ajax alarm, here’s the WA-specific picture. It’s different from NSW, and most guides get it wrong.
WA Strata Law Is Different from NSW — Most Online Guides Don’t Cover It
Most strata alarm guides you’ll find online are written for NSW under the Strata Schemes Management Act 2015. Western Australia operates under the Strata Titles Act 1985 (WA), which has different provisions around lot owner rights, body corporate approval processes, and what constitutes a structural change. The practical outcome for Ajax installations is broadly similar — wireless installs inside your lot generally don’t need approval — but the legal framework is different and the approval process for common areas follows WA-specific procedures.
The Short Answer: Ajax Is the Most Strata-Friendly Alarm Available in Perth
The reason most Perth strata residents struggle to get alarm systems installed isn’t the body corporate — it’s the alarm system itself. Traditional wired alarms require drilling through walls, running cables through ceiling cavities, and sometimes penetrating fire-rated building elements. That’s what triggers body corporate objections, builder warranty concerns, and heritage issues in older Perth apartment buildings.
Ajax is 100% wireless. No cable runs, no wall penetrations beyond a single small anchor per device, no impact on the building’s structural or fire-rated elements. In the vast majority of Perth strata properties, installing an Ajax system inside your individual lot requires no body corporate approval — because you’re not touching common property, not altering the building fabric, and not creating any nuisance for neighbouring lots.
The Strata Titles Act 1985 (WA) draws a clear line between works that affect common property and works within your individual lot. Mounting small wireless devices on internal walls with adhesive pads or two small screws falls well within your rights as a lot owner. We’ve installed Ajax systems in Perth strata properties across South Perth, East Perth, Northbridge, Subiaco, and Fremantle — and have never had a body corporate reject a wireless-only installation inside a private lot.
Where it gets more nuanced is common areas — the lobby, car park, stairwell, or shared corridors. That’s where body corporate approval comes into play under WA strata law, and we’ll walk you through that process below.
For renters in Perth strata properties, the relevant legislation is the Residential Tenancies Act 1987 (WA). You need written permission from your landlord before installing any security device — but because Ajax is fully reversible, most Perth landlords are happy to approve it. We can provide a written description of the installation method to help you make the case.
Common Property vs Your Individual Lot — What’s the Difference in WA?
This is the question Perth strata owners ask most. The answer determines whether you need body corporate approval or whether you can just book the install.
Common Property — Approval Required
Shared areas owned collectively by all lot owners in the strata scheme
Under the Strata Titles Act 1985 (WA), common property includes everything outside the internal surfaces of your lot — the lobby, lifts, stairwells, car parks, shared corridors, rooftop areas, and the building’s external facade. Installing any device on common property requires body corporate (strata company) approval in WA.
The good news: Ajax’s wireless, reversible design makes approval significantly easier to obtain than for wired systems. No permanent alteration, no cable runs through fire-rated walls, and devices can be removed without any trace. Most Perth strata companies approve wireless security devices on common property without a full general meeting.
- ✓ Building lobby and entry foyer sensors
- ✓ Shared car park motion detectors
- ✓ Stairwell and corridor coverage devices
- ✓ External facade-mounted sirens
- ✓ Rooftop or plant room sensors
Your Individual Lot — Generally No Approval Needed
The internal space of your apartment or unit that you own or rent
Your individual lot includes everything within the internal surfaces of your apartment — internal walls, floors, ceilings, and all fixtures within your unit. Under WA strata law, you have the right to install security devices within your own lot without body corporate approval, provided you’re not damaging common property or breaching a specific by-law.
A wireless Ajax system mounted on internal walls with small anchors or adhesive pads falls squarely within your rights as a lot owner. For renters, written landlord permission is required under the Residential Tenancies Act 1987 (WA) — Ajax’s reversible installation makes that consent much easier to obtain.
- ✓ Internal door and window sensors on your entry points
- ✓ Motion detectors in living areas, hallways, bedrooms
- ✓ Indoor siren mounted on internal wall
- ✓ Ajax Hub mounted on internal wall or shelf
- ✓ Keypad mounted near your front door (internal side)
Perth Strata Ajax Questions — Answered Straight
The questions Perth apartment owners and renters ask us most often about Ajax installations in strata properties.
Installing Ajax in Your Perth Strata Property? We Know the WA Rules.
We’ve installed Ajax systems in Perth strata properties from South Perth to Fremantle to East Perth. We know the WA strata legislation, we know the approval process, and we know how to get your system installed cleanly and compliantly. Call us for a free consultation — no obligation, no pressure.
Call +61 406 432 691 — Free Perth Strata Consultation