“Booked a pre-winter service on our old ducted heater. They did a carbon monoxide test, cleaned the burner and it fires up first go now.”
Verified
Doncaster’s 70s brick-veneer homes on the hills often run substantial ducted gas systems across split levels. FreshDuct services the whole unit — carbon monoxide test, heat exchanger inspected and airflow balanced across levels.
Split-level home with an upstairs that never warms? An airflow balance usually fixes it.
Doncaster spread across the eastern hills through the 1970s, and its brick-veneer homes often follow the slope as split-level or two-storey designs around the Westfield hub. Ducted gas heating in these homes has to move warm air up and across changing levels, which asks a bit more of the system than a single-storey layout.
On a split-level Doncaster home the classic complaint is an upper level that never quite warms up while the lower rooms are toasty — usually an airflow or balancing issue. We service and tune the burner, inspect the heat exchanger, run a carbon monoxide test and balance the airflow so every level of the home heats as it should.
The things we check first on a Doncaster ducted gas heater — based on the local homes, systems and conditions.
Doncaster’s hillside homes often heat unevenly across levels. We check the fan, dampers and vents so warm air reaches the upper rooms, not just the lower ones near the unit.
A heater working across split levels earns a careful safety check. We inspect the heat exchanger and run a carbon monoxide test on every Doncaster service.
Many Doncaster heaters date to the 70s estates. We clean the burner and filter and service the unit honestly, flagging any part that is genuinely worn out.
Real photos from FreshDuct ducted gas heater service, carbon monoxide testing and duct work. We document every service with clear before-and-after photos.



One local team for the whole system — from an annual ducted heater service and carbon monoxide test to duct cleaning, cooling and split systems.

A full annual service and tune of your ducted gas heater — burner, heat exchanger, thermostat and airflow all checked.
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A negative-pressure CO spillage test on the gas heater — the critical safety check for a cracked or corroded heat exchanger.
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Cleaning the ducts and vents that carry warm air through your home for cleaner, healthier heating.
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Return-air filter, supply vents and airflow checked so the heater runs efficiently and warms every room evenly.
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Servicing the evaporative cooler that often shares your home’s ductwork, ready for summer.
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Cleaning and sanitising wall-mounted split systems for cleaner, more efficient heating and cooling.
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A split-level Doncaster home rewards a service that pays attention to airflow as well as the heater itself. We clean and tune the burner, inspect the heat exchanger, run a carbon monoxide test and then work on the airflow so the upper level heats as well as the lower.
When the upstairs stays cold, it is usually reduced airflow to the upper vents rather than a fault in the heater. We check the fan, dampers and returns, correct the balance and tune the burner, and photograph what we adjusted so you can see the difference.
FreshDuct services ducted gas heaters across Doncaster and Doncaster East 7 days a week, and we work nearby in Box Hill, Balwyn, Ringwood and Greensborough, so a Doncaster job fits into our run.
From the split-level homes near Westfield to the streets up towards Templestowe, we can usually offer a prompt autumn service and prioritise a heater that has stopped warming part of the house.
A thorough, documented annual service — every component checked and a carbon monoxide test done before the cold sets in.
We check the whole ducted gas heater — burner, heat exchanger, gas valve, thermocouple, ignition and wiring.
A negative-pressure CO spillage test to make sure the heat exchanger is sound and nothing is venting into your home.
Burner, injectors and ignition cleaned and adjusted so the heater lights reliably and burns cleanly.
Return-air filter and supply vents checked and cleared so warm air flows freely to every room.
Thermostat, sensors and controls tested so the heater cycles correctly and holds the temperature you set.
A clear service report with photos and honest advice on whether to service or replace.
Verified 5-star reviews from across FreshDuct’s heating, cooling and duct services.
“Booked a pre-winter service on our old ducted heater. They did a carbon monoxide test, cleaned the burner and it fires up first go now.”
Verified
“Turned up on time, showed me the heat exchanger and explained the CO test properly. No scare tactics, just honest advice.”
Verified
“Our floor-ducted heater was noisy and slow to warm up. FreshDuct serviced it, replaced the filter and it heats the whole house again.”
Verified
“Great communication and a tidy job. They checked the thermostat and airflow and sorted a room that was never getting warm.”
Verified
“Honest team — they told me the unit was worth servicing rather than replacing and saved me a lot of money.”
Verified
“Quick, professional and clean. The report and photos showed exactly what they checked on the gas heater.”
Verified
We cover Doncaster and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
On a split-level home warm air has to travel up and across levels, so any reduction in airflow leaves the upper rooms cold while the lower ones stay warm. We check the fan, dampers and upper vents, correct the balance and tune the burner so every level heats evenly.
Yes. Many Doncaster homes still run a ducted heater from the 70s estates. We clean the burner and filter, inspect the heat exchanger, run a carbon monoxide test and balance the airflow across the levels, and advise honestly on the unit’s condition.
Yes. FreshDuct services, tunes and carbon-monoxide tests ducted gas heaters across Doncaster and the surrounding eastern suburbs, 7 days a week. Call 04 3191 8137 or request a free quote.
A standard annual service and carbon monoxide test is a fixed, affordable price; the cost only changes if the heater needs a part such as a thermocouple, igniter, filter or fan component — and we quote those clearly before we fit anything. Call 04 3191 8137 for pricing.
Every two years at a minimum, and ideally once a year before winter. An annual service in autumn means the burner, heat exchanger and controls are checked and a carbon monoxide test is done before you rely on the heater through the cold months.
Yes. Every ducted gas heater service we do includes a carbon monoxide safety check — we test for CO spillage and inspect the heat exchanger for cracks, because a faulty exchanger can leak carbon monoxide into the home. It is the single most important reason to service a gas heater.
Annual service and tune, carbon monoxide safety test, burner & heat-exchanger check, filter and airflow — a clean, documented service with photo proof. Available 7 days.
Tell us about your ducted heater and home — we respond fast, 7 days.