Ducted heating service in Melbourne covers a range of work — from the annual gas safety and performance service through to fault diagnosis and repair, filter changes, and zone system maintenance. Understanding what each service type costs, and what drives the variation, helps Melbourne homeowners plan their heating maintenance budget and compare quotes accurately. This guide covers Melbourne 2025 pricing for all common ducted heating service scenarios.
Annual Service Cost Overview — Melbourne 2025
All prices below are complete job prices for a standard residential gas ducted heater. No separate parts charges on top of the listed price.
| Service Type | Price Range (AUD) | Notes |
|---|---|---|
| Annual gas safety and performance service | $300 – $450 | Full inspection, burner clean, combustion test |
| Annual service + filter replacement | $350 – $500 | Most complete pre-season service |
| Filter replacement (standalone service) | $250 – $380 | Minimum callout applies; bundle with service to save |
| Zone motor / actuator replacement | $280 – $420 | Per zone; complete job |
| Flame sensor or igniter replacement | $280 – $420 | Complete job — part and labour included |
| Ignition PCB replacement | $320 – $480 | Complete job — model-specific part |
| Gas valve replacement | $400 – $600 | Complete job — includes gas system re-test |
| Blower motor replacement | $450 – $750 | Complete job — varies by motor size and model |
| Wall controller / thermostat replacement | $350 – $550 | Complete job — includes setup and calibration |
FreshDuct provides upfront pricing before any work begins. Call 0431 918 137 or book online for a site-specific quote.
Repair Costs by Fault Type
Ignition system faults ($280 – $480)
Ignition faults are the most common cause of “no heat” calls in Melbourne at the start of the heating season. The ignition system includes the spark igniter, the flame sensor (or thermocouple on older units), and the ignition PCB. Flame sensor fouling is the most frequently found fault — the sensor accumulates carbon deposits during the season and can lose sensitivity, causing it to fail to confirm ignition and lock the system out. Flame sensor replacement is $280 to $380 as a complete job. PCB replacement is $320 to $480. Ignition module failure is less common but more expensive at $380 to $520.
Gas valve faults ($400 – $600)
The gas valve controls the flow of gas to the burner. Failure modes include the valve sticking closed (no gas to burner, no ignition), valve leaking (gas smell, safety shutdown), or a faulty valve solenoid. Gas valve replacement is $400 to $600 as a complete job including the gas system pressure re-test that Victoria’s gas safety regulations require after any gas component replacement.
Blower motor faults ($450 – $750)
The blower motor draws return air through the filter, forces it across the heat exchanger, and pushes it into the supply ducts. Blower motor failure is typically preceded by bearing noise (grinding or rumbling from the roof space) or slow starting. Replacement is $450 to $750 depending on the motor size and model — variable-speed ECM motors (fitted to modern high-efficiency Brivis and Rinnai units) are more expensive than the single-speed motors in older heaters.
Zone system faults ($280 – $600)
Zone motorised damper actuators fail over time — typically after ten to fifteen years of operation. Symptoms include zones that do not open or close as commanded, or constant airflow to a zone regardless of controller setting. Individual actuator replacement is $280 to $420. Zone controller board replacement (when the central zone control module fails) is $350 to $600 depending on the system complexity.
Filter Service Cost
The return air filter in a Melbourne ducted heater should be inspected monthly during the heating season and cleaned or replaced as needed. Most Melbourne heaters use a standard polyester mesh filter that can be vacuumed clean multiple times before replacement is needed. A professional filter service (cleaning or replacement) as a standalone call-out is $250 to $380 including the minimum service call. Bundled with the annual service, filter replacement is included in the $350 to $500 combined service price.
What Affects the Price in Melbourne
Heater location and accessibility
Most Melbourne residential gas ducted heaters are located in the roof space — access via a ceiling manhole. A clear, accessible roof space with the heater near the access point adds no premium. A heater located at the far end of a low-clearance roof space, requiring the technician to crawl across the full ceiling, may attract a $50 to $100 access premium. Under-floor heater installations (some older Melbourne homes) may also attract a minor access premium.
Service history and system age
A heater serviced annually is clean and the service is straightforward. A heater not serviced in three or more years typically has significant carbon and dust accumulation on the burner, heat exchanger, and blower assembly — requiring additional cleaning time. Older heaters also have higher parts costs because model-specific parts for units over fifteen years old may require ordering. A realistic premium for a first service on a neglected system is $50 to $100.
Repair vs service distinction
A service identifies faults; it does not automatically include the cost of repairing them. If a service finds that a flame sensor replacement or zone actuator replacement is needed, these are quoted separately before work proceeds. The service fee covers the inspection, diagnostic work, and report — repairs are priced on top of the base service.
When to Book for Best Availability
Melbourne ducted heating service demand is highly seasonal. Book in April or May for a pre-season service — this is the most convenient time for Melbourne households (before the cold nights arrive), and technician availability is good. Avoid October through December, when HVAC technicians are fully committed to evaporative cooler service bookings. The period of worst availability for heating is late May and June — when the first cold nights trigger a wave of emergency “no heat” calls that fill technicians’ schedules for weeks.
FreshDuct takes Melbourne ducted heating service bookings year-round. Book your April or May service slot early — call 0431 918 137 or book online.
How to Compare Service Quotes
When comparing ducted heating service quotes in Melbourne, confirm: whether the quoted price is a complete job price or whether parts are extra; whether a gas safety certificate is issued following the service; whether the heat exchanger inspection is included (some low-cost services skip this); and what the call-out or travel fee is (some providers add this on top of quoted labour). A complete annual service for a Melbourne gas ducted heater should include burner clean, heat exchanger inspection, combustion performance test, flue check, blower inspection, and filter assessment. A quote that omits any of these is not a complete annual service.
See our full annual service guide for what every Melbourne ducted heating service should cover.