“Booked a split system clean and the difference was instant — no more musty smell when it starts up.”
Verified
Preston blends post-war homes, market-precinct flats and new townhouses, and many of their splits are years overdue for a real clean. FreshDuct clears coil, fan and condenser grime, with photo proof.
Split never had more than a filter rinse? The real grime sits deeper — we deep-clean it out.
Preston is a busy, changing inner-north suburb centred on the much-loved Preston Market and the High Street and Plenty Road corridors. Its housing spans post-war brick and weatherboard homes, older walk-up flats near the market and shops, and a steady flow of new townhouses and apartments. Split systems handle most of the cooling, and across a lot of this stock they have run for years on little more than an occasional filter rinse.
That neglect is the local theme. A quick rinse of the filter feels like maintenance, but it never touches the real build-up deeper inside the head &mdash the packed dust and black mould on the coil and barrel fan. In Preston’s many rentals and long-held family homes alike, that grime accumulates season after season, cutting the cooling and bringing the stale smell that greets you when the unit starts. Outside, the condenser quietly collects yard dust and loses airflow.
FreshDuct cleans Preston splits properly, past the filter. We strip and deep-clean the indoor coil and fan, sanitise to clear the mould, wash the outdoor condenser, clear the drain, and finish with before and after photos so you can see what a filter rinse had been missing.
The things we look at first on a Preston split system — based on the local homes and conditions.
Many Preston splits have never had more than a filter rinse, so mould and packed dust sit deep on the coil and fan. We strip and deep-clean those parts and sanitise, clearing the grime a rinse can never reach.
A caked coil and barrel fan choke the airflow, so a Preston split cools less and runs longer for it. Clearing the build-up restores the cooling and the efficiency the unit has quietly lost.
Older flats near Preston Market often have splits with condensers in shared light wells or on flat roofs. We plan safe access and clean both the indoor head and the outdoor unit for the whole system.
Real photos from FreshDuct split-system cleans. We document every job with before and after photos.



One local team for the whole unit — from a routine coil clean to mould treatment, repairs and new installs.

Deep clean of the evaporator coil, barrel fan and drum where mould and dust hide.
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Clearing and washing the outdoor coil and fins so the system can shed heat.
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Sanitising the unit to clear black mould, mildew and the musty smell on start-up.
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Cleaning filters and clearing the drain line that causes dripping and leaks.
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A complete indoor and outdoor clean, sanitise and health check in one visit.
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Not cooling, leaking or noisy? We diagnose, repair and install split systems too.
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The trouble with a Preston split that has only ever had its filter rinsed is that the real grime sits well beyond the filter — caked on the coil and packed into the barrel fan, where mould grows and airflow chokes. That is why the air still smells stale and the cooling still lags after a DIY clean.
We open the head up, deep-clean and sanitise the coil, fan and drum, and clear the drain, then wash the outdoor condenser. Whether it is your own home or a rental you manage, a proper clean makes an obvious difference to both the cooling and the air.
FreshDuct cleans split systems across Preston and the inner north 7 days a week. We regularly work neighbouring Thornbury, Reservoir, Coburg and Northcote, so Preston and its borders are part of our everyday run.
From post-war homes off Plenty Road to flats near Preston Market and the High Street shops, we can usually offer a prompt time and work in around parking and body-corporate access.
A safe, documented, end-to-end clean — every job, every suburb.
We check the indoor head, filters, coil and outdoor condenser.
Walls, floors and furniture are covered before any water is used.
Coil, barrel fan, drain and condenser washed and sanitised.
We clear black mould and neutralise the musty smell.
We run the unit, check the cool, and take before & after photos.
Site left clean and dry, with honest advice.
Verified 5-star reviews from across FreshDuct’s duct, heating, cooling and split-system services.
“Booked a split system clean and the difference was instant — no more musty smell when it starts up.”
Verified
“On time, tidy and thorough. They showed me the black mould they pulled out of the unit. Impressed.”
Verified
“Our bedroom split is finally cooling properly again. Friendly, professional and no mess left behind.”
Verified
“So glad I chose FreshDuct. Cleaned two heads and the outdoor unit, all explained clearly.”
Verified
“Quick, efficient and professional — the air quality difference was obvious the same day.”
Verified
“The technician was incredibly thorough and the before/after photos said it all.”
Verified
We cover Preston and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
Because the real build-up is on the coil and barrel fan deep inside the head, well past the filter. Rinsing the filter never reaches it, so the mould and packed dust stay put, keeping the air stale and the airflow choked. We strip and deep-clean those internal parts and sanitise the unit, which fixes both.
Yes. We regularly clean splits in Preston rentals for both tenants and property managers. A unit used hard by successive tenants and rarely cleaned builds up thick coil and fan grime and mould, which we deep-clean and sanitise, and we provide before and after photos useful for property records.
Yes. FreshDuct cleans and services split-system air conditioners across Preston and the surrounding inner north, 7 days a week — indoor heads, outdoor condensers, mould treatment and repairs. Call 04 3191 8137 or request a free quote.
Split-system cleaning is quoted per indoor head and outdoor unit, based on how many units you have, their type and access. You get clear pricing up front before any work starts — call 04 3191 8137 for a fast quote.
For most Preston homes, a professional clean every 12 months keeps the coil, fan and filters clear and the air healthy. Heavy users, homes with pets, allergies or nearby trees, and holiday rentals often benefit from every 6 to 9 months.
Yes. Every FreshDuct split-system clean in Preston comes with before and after photos and honest, plain-English advice — so you can see exactly what came out of the unit and the result.
Coil, fan and condenser cleaning, mould treatment and repairs — a healthy, better-cooling unit with photo proof. Available 7 days.
Tell us about your split system — we respond fast, 7 days.