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Sydney homes cool far more than they heat, in air that is humid for much of the year. That changes what goes wrong and what is worth doing about it. This page sorts our Sydney services by the problem you have, from a split system that smells or drips to dusty ducts, a mouldy bathroom or a chimney before winter.
Any one of these is worth a call. They rarely fix themselves.
In most Sydney homes the air conditioner works hardest from November to March. Near the coast, summer is warm and sticky rather than scorching; out west, around Penrith, Blacktown and Liverpool, heatwave days push systems close to their limits. Winters are mild, so many homes heat with the same reverse cycle system that cools them, with a fireplace or wood heater for the coldest weeks.
That pattern decides the upkeep. A system that cools all summer collects dust, moisture and mould in its indoor unit, while the outdoor unit takes the heat and, near the water, the salt. For most households the useful rhythm is a yearly air conditioner service in spring, a deep clean when mould has taken hold, and a quick test of heating mode before the first cold week. Our guide to heating options in Sydney compares the ways Sydney homes keep warm.
The split system smells, drips or has lost its punch. Start with a service: filters, coil, drain and outdoor unit, with performance measured. If the inside is black with mould, a split system deep clean washes the coil and barrel fan right through.
It will not start, trips the power or shows a code that keeps coming back. That is a fault for our air conditioner repairs team. You get a quote to approve before any work starts.
It runs but never gets cold, or there is ice on the outdoor pipe. Often a refrigerant leak, sometimes a choked filter or coil. The technician checks airflow before any gas goes in. Our aircon regas service finds and repairs the leak before recharging.
Ducted vents are dusty, or the house smells stale when the ducted system starts. Duct cleaning covers the ducts, vents and return air path, with separate options for rental properties and homes after a renovation.
Bathroom mould keeps coming back, or the fan roars without pulling. That is ventilation: see bathroom mould and ventilation and our exhaust fan services, including rangehood cleaning.
A fireplace or wood heater before winter. Our chimney services in Sydney cover sweeping, inspections and repairs.
Humidity is the thread through most Sydney callouts. Moist air condenses on the coldest surface it finds: the indoor coil of a split system, a bathroom ceiling, a window frame on a winter morning. Where water sits, mould follows. That is why one house can have a musty air conditioner, a spotted bathroom ceiling and a damp-smelling wardrobe, all from the same cause.
Treating one symptom while the moisture keeps arriving only buys time. A clean, correctly charged split system dries the air as it cools; a dirty one stops doing that. A bathroom fan that is clogged, or ducted into the roof space instead of outside, leaves the steam behind. Fix the moisture first and clean second. Our guide to mould and humidity in Sydney homes explains the moisture side.
Many Sydney homes are apartments, and that shapes the job. Outdoor units sit on balconies, wall brackets or rooftop plant decks; bathrooms often have no window and extract through a shared riser. We work in apartments and townhouses, and with building managers for common-property access. Tell us where the outdoor unit or roof fan is when you book so access can be arranged. Common-property work has its own pages: commercial exhaust fan services and commercial duct cleaning. The apartment air conditioning guide covers balcony units and strata rules.
Every job starts with a free estimate over the phone and a firm price before any work. There is no call-out fee, and you pay after the job, once you have seen the result. Our technicians are police-checked and hold NDIS Worker Screening checks, and we work alongside NDIS plan managers and support coordinators. We take before and after photos on every job, carry full public liability and business insurance, and if you are not happy with a clean, we come back and re-clean.
Prefer to read up first? The Sydney guides cover running costs, ducted versus split systems, coastal air conditioning and more.
10,000+ projects for homes, councils, universities & agencies
Brands we service — heating, cooling & fireplaces
MitsubishiFujitsuPanasonicBrivisBraemarBreezairToshibaCoonaraScandiaCannonEsceaHeatcharmEurekaCheminees PhilippeClean AirNectreJindaraRegencyMitsubishiFujitsuPanasonicBrivisBraemarBreezairToshibaCoonaraScandiaCannonEsceaHeatcharmEurekaCheminees PhilippeClean AirNectreJindaraRegencyWhichever service you book, these come as standard.
What you are seeing, the type of system and where it is. Not sure? Say so.
The office matches it to the right service and gives you a firm price.
Done 7 days a week, with before and after photos.
You see the result first. Then you pay.
Real reviews from verified FreshDuct customers — find hundreds more on our Google profile.
Rated 5 out of 5 stars
“Cannot say enough about Gabriel and his team. They were very professional with their job. He taught me what I am supposed to know about vents and how to take care of them. They did an amazing job.”
Rated 5 out of 5 stars
“Our ducts had not been cleaned in 9 years. I was really happy with their professionalism and speed. They respected our house rules and the air in my home is really fresh and clean.”
Rated 5 out of 5 stars
“Outstanding service! Manny was very professional and polite. This is by far the most thorough cleanup that we have experienced. All vents were cleaned and sanitised.”
Rated 5 out of 5 stars
“Adam and his team were professional and very service oriented. They provided detailed before and after pictures to confirm the work and effort. Highly recommend FreshDuct.”
Rated 5 out of 5 stars
“Tom and Eddie did an outstanding job cleaning my air ducts. I scheduled my appointment yesterday and the job was completed within 24 hours. Very satisfied with the service.”
Rated 5 out of 5 stars
“We had pet stains and a bad smell in the carpet and air ducts. After FreshDuct visited, the house smells fresh and clean again.”
Rated 5 out of 5 stars
“Our house flooded in the storms with over a metre of water. FreshDuct came recommended by our neighbours and arrived the same day.”
Rated 5 out of 5 stars
“They were clear up front about pricing and exactly what was included. Very thorough from start to finish.”
Branded vans, uniformed technicians, professional equipment.
Air conditioner servicing, split system deep cleaning, air conditioner repairs and regas, duct cleaning, bathroom mould and ventilation, exhaust fan services and chimney services. Each has its own page linked above.
Describe the problem in the form or on the phone. The office matches it to the right service and gives you a firm price before any work.
For many homes, yes, because winters are mild. Size, insulation and the layout of the house all matter, and our heating options guide compares the choices.
Humid air condenses on cold surfaces and mould grows where the water sits. Cleaning removes it, but it returns until the moisture is dealt with, usually through better ventilation and a system that is clean and dehumidifying properly.
Yes. Tell us where the outdoor unit or roof fan is so access can be arranged with your building manager.
There is no call-out fee. You pay after the job, once you have seen the result, by cash, card or bank transfer.
Yes. We work alongside NDIS plan managers and support coordinators, and our technicians hold NDIS Worker Screening checks.
HVAC services Sydney
FreshDuct looks after heating, cooling and ventilation in Sydney houses and apartments, 7 days a week: split system servicing, cleaning, repairs and regas, duct cleaning, exhaust fans and chimneys.
Heating in a mild-winter city
Many Sydney homes heat with reverse cycle, so the cooling service and the heating check are one visit. Fireplaces need their own sweep and inspection before winter.
All of metropolitan Sydney, 7 days a week — and if your suburb is not listed, we still come to you. The office confirms the details for your address when they call with your free estimate.
Fan coil, drain tray, zones and controller checked in the roof space.
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Describe the problem and we will match it to the right service. Free quote, no call-out fee, and you pay after the job.
FreshDuct