“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
Preston’s post-war brick and weatherboard homes around Northland run a lot of long-serving ducted gas heaters. FreshDuct services them the honest way — carbon monoxide test, burner and heat-exchanger check and a filter clean.
Original heater from the 80s still going? Get it serviced and CO-tested before winter.
Preston is a large, practical northern suburb of post-war brick and weatherboard family homes, with newer infill around the Northland and High Street corridors. A great many of these homes were fitted with ducted gas heating decades ago, and it is still doing the heavy lifting through winter.
A heater that has warmed a Preston family home since the 1980s has earned a careful annual check. Dust loads the filter, the ignition parts wear, and the heat exchanger deserves a proper inspection. We clean and tune the burner, replace the small worn parts, inspect the exchanger and run a carbon monoxide test so an older Preston heater keeps going safely.
The things we check first on a Preston ducted gas heater — based on the local homes, systems and conditions.
The classic Preston fault is a pilot that drops on the coldest night. We renew the thermocouple and clean the burner so the heater lights first go and holds its flame.
Plenty of Preston homes still run an original dial thermostat that overshoots or short-cycles. We test it, and can fit a modern controller so the heater runs in steady, even cycles.
A unit that has fired every winter since the 80s earns a close look. We inspect the heat exchanger for cracks and run a carbon monoxide spillage test each service.
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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The complaint we hear most in Preston is a heater that will not stay lit — a pilot that drops or a unit that cuts out on the overheat sensor. That is nearly always a worn thermocouple, a dirty burner or restricted airflow, and we put all three right so it runs a full cycle without dropping out.
Once the reliability is sorted, we confirm the heater is safe and efficient: a heat-exchanger inspection, a carbon monoxide test, and a check that every room is getting warm air. Where a Preston unit is genuinely spent we say so plainly, but most are worth another few winters.
FreshDuct services ducted gas heaters across Preston and Preston West 7 days a week, from the streets around Northland to the family homes down towards Regent.
We are constantly working nearby in Reservoir, Coburg, Northcote and Bundoora, so we can usually offer a prompt autumn slot and bump up a Preston heater that keeps cutting out before winter.
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 Preston and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
Nearly always a worn thermocouple, a dirty burner or an airflow fault tripping the overheat cut-out. We renew the ignition parts, clean the burner and clear the filter and vents so the heater completes a full cycle instead of dropping out on cold nights.
Often it is worth it. An original dial thermostat can overshoot and short-cycle, wasting gas and leaving rooms uneven. We test the existing control first, and if it is the problem we can fit a modern thermostat so the heater holds a steady, efficient temperature.
Yes. FreshDuct services, tunes and carbon-monoxide tests ducted gas heaters across Preston and the surrounding northern 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.