“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
Northcote’s Federation and Victorian homes along the High Street ridge have been renovated for a generation, many keeping a ducted gas heater through the changes. FreshDuct services them properly — carbon monoxide test, burner clean and a full airflow check.
Renovated but the heater is original? It probably deserves a service and a CO test.
Northcote is a lively inner-northern suburb strung along the High Street ridge, full of Federation and Victorian homes that have been extended and renovated over the past couple of decades. The kitchens and bathrooms are new, but in a lot of these homes the ducted gas heater is still the one that was there before the works began.
An original heater kept through a renovation is easy to overlook. It keeps running until it doesn’t — and the part you cannot see, the heat exchanger, is the one that matters most for safety. We service the burner, inspect the exchanger, check the controls and airflow and run a carbon monoxide test so a Northcote heater is as reliable as the rest of the renovated home.
The things we check first on a Northcote ducted gas heater — based on the local homes, systems and conditions.
Renovated Northcote homes often keep the original ducted heater. We inspect the heat exchanger and CO-test the unit so an old heater is not the weak link in an updated house.
Rear extensions change how warm air needs to travel. We check the vents, returns and fan so the new spaces heat as well as the original front rooms.
Renovations sometimes leave an old thermostat driving a heater warming new rooms. We test and, where needed, recommend updating the controls so the heater cycles efficiently.
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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When a Northcote home has been renovated but the ducted heater is original, a proper service brings it into line with the rest of the house. We clean the burner, inspect the heat exchanger, run a carbon monoxide test and check that the heater still suits the extended layout.
A common Northcote issue is a new rear extension that never quite warms up on the old heating. That is usually airflow or an undersized run rather than the heater. We check the vents and returns, tune the burner and advise honestly on whether the system still fits the home.
FreshDuct services ducted gas heaters across Northcote and Thornbury 7 days a week, and we are regularly working nearby in Fitzroy, Brunswick, Preston and Coburg, so a Northcote booking fits neatly into our week.
From the homes off High Street to the streets down towards the Merri Creek, we can usually offer a prompt autumn service and prioritise a heater that has stopped keeping the house warm.
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 Northcote and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
Yes. In Northcote it is common to renovate around the original ducted heater. A service cleans and tunes the burner, inspects the heat exchanger, tests the controls and includes a carbon monoxide check, so the old heater is as safe and reliable as the updated home.
A rear extension added to an existing ducted system often struggles because the airflow was never rebalanced for the extra space. We check the vents, returns and fan, tune the burner, and tell you honestly whether the current heater can cover the larger home.
Yes. FreshDuct services, tunes and carbon-monoxide tests ducted gas heaters across Northcote and the surrounding inner north, 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.