Upgrade an Old Bosch, DSC or Hills Alarm to Ajax in Melbourne
Many older Bosch, DSC, Hills, Ness and Paradox alarms can be assessed for an Ajax upgrade without automatically replacing every cable and sensor. SIPKO tests the existing wiring and devices, replaces the old panel and keypad where required, and configures the Ajax Hub, app users and alarm zones. If the existing system is still stable, repair may be the more economical option.
Keep wiring that passes testing
Existing zone cables, door contacts and selected detectors may remain in use when their condition and location are suitable.
Add Ajax app control
Users can arm and disarm the alarm, receive notifications, check events and manage access through the Ajax app.
Replace the old panel and keypad
The outdated control equipment is removed while compatible wiring and reliable devices may be connected to the new system.
Choose the right Hub connection
Hub location, internet access, cellular backup options and radio coverage are checked for the property.
Reusing existing wiring: sound cable runs can reduce the amount of new cabling required. Some wall, ceiling or roof-space access may still be needed if wiring is damaged, devices must be moved or additional areas require protection.
Request an Upgrade Check
Call 0406 432 691 or send the details of your current system.
Who an Old Alarm Takeover Is Designed For
A takeover is most relevant when the existing alarm still covers useful areas, but the panel, keypad, communication method or user controls no longer meet the needs of the property.
Homes with useful wired zones
Door contacts, internal PIRs or siren cabling may already cover the right areas and only need testing, relabelling and a new control platform.
New owners of an older property
The alarm may have unknown codes, outdated remotes, no usable app and incomplete documentation after a property handover.
Sites with recurring alarm faults
Repeated communication faults, unstable power, ageing keypads or several recent service visits can make an upgrade more practical than another temporary repair.
Owners who need easier control
App access, named zones, individual users and clearer event history can be added without automatically replacing every cable and detector.
Repair the Existing Alarm or Upgrade to Ajax?
Age alone is not a reason to replace an alarm. The decision depends on the condition of the panel, wiring and sensors, the availability of replacement parts and whether app control or additional coverage is required.
Keep a stable system in service
A targeted repair may be the better-value option when the panel is reliable and the problem is limited to a battery, keypad, siren, detector, individual zone or programming fault.
- The alarm arms and disarms consistently.
- Most zones pass testing.
- Replacement parts and service support remain available.
- App control or major expansion is not required.
Replace an outdated or unreliable panel
An Ajax upgrade may be more practical when faults keep returning, the panel or keypad is obsolete, remote control is important or new zones are difficult to add to the existing system.
- Several zones or components are becoming unreliable.
- The alarm has no practical app-control option.
- The current panel cannot support the required expansion.
- Repeated repairs are approaching the cost of replacement.
SIPKO checks the current alarm before recommending a repair, a takeover that retains suitable wiring or a complete new Ajax installation.
What Can Be Reused and What Usually Gets Replaced
Older alarms often have serviceable wiring even when the panel and keypad are outdated. Each cable, contact, detector and siren circuit is checked before it is included in the Ajax upgrade.
May be reused after testing
- Zone wiring with acceptable continuity and insulation condition
- Door and window contacts that operate consistently
- Selected wired PIRs in suitable positions
- Panic inputs or other compatible wired zones
- Existing enclosure, power location or siren cabling where practical
Usually replaced or upgraded
- Legacy control panel and outdated communication hardware
- Old keypad, remotes and unsupported user controls
- Failed, unstable or poorly placed detectors
- Backup battery and power components when condition requires it
- Sirens or tamper devices that cannot be integrated reliably
Ajax MultiTransmitter: compatible wired zones can be connected to an Ajax Hub through a MultiTransmitter. Each retained zone is tested, given a clear name and checked again during commissioning.
When a Takeover Is Suitable and When Full Replacement Is Better
A takeover is usually suitable when
- The existing cable runs can be identified and test correctly.
- Detector positions still cover the required doors, rooms and access routes.
- Most wired zones remain reliable.
- The main requirements are a new Ajax Hub, app control and easier user management.
- Keeping suitable wiring will reduce unnecessary installation work.
Full replacement is usually better when
- Wiring is damaged, inaccessible, undocumented or repeatedly faulting.
- Most detectors are unreliable or installed in unsuitable positions.
- Renovations have substantially changed the property layout.
- New garage, side-access, perimeter or outbuilding coverage is required.
- Retaining the old equipment would provide little cost or installation benefit.
A complete replacement does not always require extensive wall work. Depending on the property, the new system may use wireless Ajax devices, selected existing cables or a combination of both.
Bosch, DSC, Hills, Ness and Paradox Upgrade Paths
The same basic process applies to each brand: identify the panel, test the wired zones and decide which components are worth retaining. The final scope depends on the model, system condition and required coverage.
Bosch panel to Ajax
Bosch Solution systems may still have reliable wired contacts, PIRs and cable runs even when the panel, keypad or communication module needs replacement.
Bosch alarm repair optionsDSC panel to Ajax
DSC PowerSeries and similar installations can be checked for a panel takeover while retaining compatible zone wiring and reliable detectors.
Discuss a DSC alarm takeoverHills or Reliance to Ajax
Hills Reliance, DAS and NX installations may have useful wiring even when keypads, communication modules or replacement parts are becoming difficult to maintain.
Hills alarm repair optionsNess panel to Ajax
A stable Ness panel may only need repair. An Ajax upgrade becomes more relevant when faults return, replacement parts are limited or app control is required.
Ness alarm repair optionsParadox panel to Ajax
The Paradox panel, expansion modules, keypad and existing zones are checked before choosing repair, partial reuse or complete replacement.
Paradox alarm repair optionsThe brand and model help with the initial assessment, but the reuse decision is based on cable tests, zone operation and the condition of each connected device.
How the Alarm Takeover Is Planned
The existing alarm is checked before new equipment is selected or the old panel is disconnected.
Photo review
Panel, keypad and device photos help identify the system and prepare the first list of questions.
Site and zone check
Power, wiring, zone condition, signal environment, sirens and access constraints are tested.
Confirm what stays and what changes
The quote identifies reusable wiring, devices that need replacement and the Ajax equipment required for the upgrade.
Install, test and hand over
The Hub is commissioned, zones are named, users are added and arming, notifications and alarm operation are tested.
Example Ajax Takeover Packages
The packages below illustrate three common upgrade levels. The final equipment list depends on the number and condition of the existing zones, the areas that need protection and the required method of control.
Core Panel Takeover
For a smaller property where most existing wired zones test correctly and the main requirements are a new Ajax Hub, app control and reliable day-to-day operation.
- Ajax Hub selected for the property and connection requirements
- Ajax MultiTransmitter if compatible wired zones are retained
- Testing, naming and configuration of retained zones
- Ajax KeyPad or app control, depending on user preference
- Existing siren circuit tested for reuse or replacement
- Ajax app setup for agreed users
- System testing and owner handover
Hybrid Takeover
For properties where useful wiring can be retained but selected detectors, controls or sirens should be replaced during the same visit.
- Ajax Hub selected after the panel and site assessment
- Ajax MultiTransmitter for compatible wired zones
- Ajax KeyPad and app access for authorised users
- Replacement of failed or poorly positioned detectors
- New door contacts or motion detectors where required
- Internal or external siren replacement if needed
- Optional MotionCam for a suitable internal area
- Zone naming, testing and detailed handover
Full Ajax Refresh
For an older alarm where most devices are unreliable, the property layout has changed or a complete new Ajax installation is more practical than retaining the existing system.
- Ajax Hub and KeyPad selected for the property
- Replacement of ageing or unreliable detectors
- Coverage for agreed doors, hallways and internal movement routes
- Garage, side-access or outbuilding devices where included
- Wireless, wired or hybrid installation based on site conditions
- Internal and external siren scope
- App users, permissions, areas and notification settings
- Commissioning, testing and owner handover
Final package contents are confirmed after inspection. The quote will identify which existing cables and devices can remain, which components need replacement and whether additional coverage or access work is required.
Photos That Help Us Scope the Existing Alarm
Clear photos help identify the panel and prepare for the site check. Complete the enquiry form and mention that photos are available; SIPKO will confirm the preferred way to send them.
What the Quote Should Confirm
A useful takeover quote should show more than a list of new devices. It should explain what is being kept, what is being removed and what still depends on testing.
- Existing panel and keypad identified where possible
- Approximate number and type of current zones
- Wiring and devices proposed for reuse
- Components proposed for replacement
- Ajax Hub, interface modules, keypad and siren scope
- App setup, users, zone naming, testing and handover
- Any exclusions, access issues or further diagnostic work
Send the Panel Details and Current Fault History
Provide the panel brand, keypad model, current faults and any available photos. SIPKO Security will assess whether repair, a partial takeover or a complete Ajax replacement is the more suitable option for the property.