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1300 099 778

Ducted Air Conditioning Cleaning

Cleaner air, better airflow, and a more efficient ducted system

4.9 Rating

Same-Day Bookings

From $99 + GST

1300 099 778
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Professional Ducted Air Conditioning Cleaning in South East Queensland

Ducted air conditioning systems provide whole-of-property cooling, but because air is circulated through ceiling ducts and vents, internal buildup can affect air quality, airflow, and system performance over time.

Our technicians provide professional ducted air conditioning cleaning services designed to thoroughly clean internal components, support healthier indoor air, and help your system operate efficiently.

Ducted systems require specialised cleaning due to their ceiling-mounted components and extensive ductwork. Our structured cleaning process is designed to deliver a deep, effective clean while protecting your property.

  • Pre-check and test ducted air conditioner temperature and vents to ensure the ducted AC unit is working.

  • Check surroundings and protect with a waterproof tarp.

  • Remove filters, filter housing, ceiling outlet and vent covers and take them outside to clean and sanitise with foam air conditioner cleaner and hospital-grade disinfectant.

  • Deodorise ducted air conditioner system.

  • Check the ducted AC system air flow and report any issues to the client.

  • Spray nano fogging treatment through the ducted air supply tubing in the ceiling and return air outlet - which kills mould & bacteria for long-term protection.

  • Reassemble all components, dry excess moisture on or around the aircon unit and test airflow again. Clean and tidy, leaving the area as we found it.

  • Provide a completed next service sticker with recommendations for future ducted aircon high performance.

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Pricing

Ducted Air Conditioning Cleaning Packages

Every ducted system and property is different, which is why we offer a range of ducted air conditioning cleaning packages to suit different needs. If your system requires a service outside the options listed below, our team can provide a customised solution.

  • Ducted Standard

    • Filter removal 

    • Filter clean with foam AC cleaner 

    • Filter washed to remove dirt / dust / mould 

    • Filter sanitised with Bio Det Hospital Grade disinfectant 

    • Filter housing cleaned with foam AC cleaner  

    • Filter housing sanitised with Bio Det Hospital Grade disinfectant 

    • Ceiling outlet cleaned with AC cleaner 

    • Ceiling outlet sanitised with Bio Det Hospital Grade disinfectant 

    • Deodorise system

    • Nano fogging for MOULD through ducted air supply tubing through ceiling

    • Nano fogging for BACTERIA through ducted air supply tubing through ceiling

    • Nano fogging for MOULD through return air inlet 

    • Nano fogging for BACTERIA through return air inlet 

    • Nano fogging for MOULD through air outlet 

    • Nano fogging for BACTERIA through air outlet 

    • Nano fogging for VIRUS through ducted air supply tubing in ceiling with TGA approved disinfectant 

    • Nano fogging for VIRUS through return air inlet with TGA approved disinfectant 

    • Nano fogging for VIRUS through air outlet with TGA approved disinfectant 

    • Check system and report to client 

    • Filter inlet replacement from $50 +gst (+$99 +gst fitting fee)

    • Add external AC condenser for $69 +gst

  • Ducted Standard Plus

    • Filter removal 

    • Filter clean with foam AC cleaner 

    • Filter washed to remove dirt / dust / mould 

    • Filter sanitised with Bio Det Hospital Grade disinfectant 

    • Filter housing cleaned with foam AC cleaner  

    • Filter housing sanitised with Bio Det Hospital Grade disinfectant 

    • Ceiling outlet cleaned with AC cleaner 

    • Ceiling outlet sanitised with Bio Det Hospital Grade disinfectant 

    • Deodorise system

    • Nano fogging for MOULD through ducted air supply tubing through ceiling

    • Nano fogging for BACTERIA through ducted air supply tubing through ceiling

    • Nano fogging for MOULD through return air inlet 

    • Nano fogging for BACTERIA through return air inlet 

    • Nano fogging for MOULD through air outlet 

    • Nano fogging for BACTERIA through air outlet 

    • Nano fogging for VIRUS through ducted air supply tubing in ceiling with TGA approved disinfectant 

    • Nano fogging for VIRUS through return air inlet with TGA approved disinfectant 

    • Nano fogging for VIRUS through air outlet with TGA approved disinfectant 

    • Check system and report to client 

    • Filter inlet replacement from $50 +gst (+$99 +gst fitting fee)

    • Add external AC condenser for $69 +gst

  • Ducted Premium

    • Filter removal 

    • Filter clean with foam AC cleaner 

    • Filter washed to remove dirt / dust / mould 

    • Filter sanitised with Bio Det Hospital Grade disinfectant 

    • Filter housing cleaned with foam AC cleaner  

    • Filter housing sanitised with Bio Det Hospital Grade disinfectant 

    • Ceiling outlet cleaned with AC cleaner 

    • Ceiling outlet sanitised with Bio Det Hospital Grade disinfectant 

    • Deodorise system

    • Nano fogging for MOULD through ducted air supply tubing through ceiling

    • Nano fogging for BACTERIA through ducted air supply tubing through ceiling

    • Nano fogging for MOULD through return air inlet 

    • Nano fogging for BACTERIA through return air inlet 

    • Nano fogging for MOULD through air outlet 

    • Nano fogging for BACTERIA through air outlet 

    • Nano fogging for VIRUS through ducted air supply tubing in ceiling with TGA approved disinfectant 

    • Nano fogging for VIRUS through return air inlet with TGA approved disinfectant 

    • Nano fogging for VIRUS through air outlet with TGA approved disinfectant 

    • Check system and report to client 

    • Filter inlet replacement from $50 +gst (+$99 +gst fitting fee)

    • Add external AC condenser for $69 +gst

  • Ducted Premium Plus

    • Filter removal 

    • Filter clean with foam AC cleaner 

    • Filter washed to remove dirt / dust / mould 

    • Filter sanitised with Bio Det Hospital Grade disinfectant 

    • Filter housing cleaned with foam AC cleaner  

    • Filter housing sanitised with Bio Det Hospital Grade disinfectant 

    • Ceiling outlet cleaned with AC cleaner 

    • Ceiling outlet sanitised with Bio Det Hospital Grade disinfectant 

    • Deodorise system

    • Nano fogging for MOULD through ducted air supply tubing through ceiling

    • Nano fogging for BACTERIA through ducted air supply tubing through ceiling

    • Nano fogging for MOULD through return air inlet 

    • Nano fogging for BACTERIA through return air inlet 

    • Nano fogging for MOULD through air outlet 

    • Nano fogging for BACTERIA through air outlet 

    • Nano fogging for VIRUS through ducted air supply tubing in ceiling with TGA approved disinfectant 

    • Nano fogging for VIRUS through return air inlet with TGA approved disinfectant 

    • Nano fogging for VIRUS through air outlet with TGA approved disinfectant 

    • Check system and report to client 

    • Filter inlet replacement from $50 +gst (+$99 +gst fitting fee)

    • Add external AC condenser for $69 +gst

  • Ducted Ultimate

    • Filter removal 

    • Filter clean with foam AC cleaner 

    • Filter washed to remove dirt / dust / mould 

    • Filter sanitised with Bio Det Hospital Grade disinfectant 

    • Filter housing cleaned with foam AC cleaner  

    • Filter housing sanitised with Bio Det Hospital Grade disinfectant 

    • Ceiling outlet cleaned with AC cleaner 

    • Ceiling outlet sanitised with Bio Det Hospital Grade disinfectant 

    • Deodorise system

    • Nano fogging for MOULD through ducted air supply tubing through ceiling

    • Nano fogging for BACTERIA through ducted air supply tubing through ceiling

    • Nano fogging for MOULD through return air inlet 

    • Nano fogging for BACTERIA through return air inlet 

    • Nano fogging for MOULD through air outlet 

    • Nano fogging for BACTERIA through air outlet 

    • Nano fogging for VIRUS through ducted air supply tubing in ceiling with TGA approved disinfectant 

    • Nano fogging for VIRUS through return air inlet with TGA approved disinfectant 

    • Nano fogging for VIRUS through air outlet with TGA approved disinfectant 

    • Check system and report to client 

    • Filter inlet replacement from $50 +gst (+$99 +gst fitting fee)

    • Add external AC condenser for $69 +gst

  • Ducted Ultimate Plus

    • Filter removal 

    • Filter clean with foam AC cleaner 

    • Filter washed to remove dirt / dust / mould 

    • Filter sanitised with Bio Det Hospital Grade disinfectant 

    • Filter housing cleaned with foam AC cleaner  

    • Filter housing sanitised with Bio Det Hospital Grade disinfectant 

    • Ceiling outlet cleaned with AC cleaner 

    • Ceiling outlet sanitised with Bio Det Hospital Grade disinfectant 

    • Deodorise system

    • Nano fogging for MOULD through ducted air supply tubing through ceiling

    • Nano fogging for BACTERIA through ducted air supply tubing through ceiling

    • Nano fogging for MOULD through return air inlet 

    • Nano fogging for BACTERIA through return air inlet 

    • Nano fogging for MOULD through air outlet 

    • Nano fogging for BACTERIA through air outlet 

    • Nano fogging for VIRUS through ducted air supply tubing in ceiling with TGA approved disinfectant 

    • Nano fogging for VIRUS through return air inlet with TGA approved disinfectant 

    • Nano fogging for VIRUS through air outlet with TGA approved disinfectant 

    • Check system and report to client 

    • Filter inlet replacement from $50 +gst (+$99 +gst fitting fee)

    • Add external AC condenser for $69 +gst

Logo for AirGuard Nano featuring a blue shield with a cluster of dots, and the tagline "Invisible Shield. Visible Difference." on a light background.

AirGuard Mould Protection

🛡️ Add AirGuard Just $20 + GST to any aircon service and breathe in the difference.

  • Advanced nano fogging delivers deep, even coverage into every corner of your unit.
  • Enhanced with Biosan, a hospital-grade mould inhibitor that kills bacteria and neutralises mould spores.
  • Lasting protection for your home or workplace with an invisible barrier that works long after your service.

Why Does Ducted Air Conditioning Need Regular Professional Cleaning?

Keeping your ducted system clean supports air quality, performance, and long-term reliability.

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How Do You Know When Your Ducted System Needs Cleaning?

If you notice any of the following, it may be time to book professional ducted air conditioning cleaning:

  1. Unusual Smells

    Musty odours can indicate dust or mould buildup inside ducts and vents.

  2. Reduced Airflow

    Blocked filters or ductwork can restrict airflow and reduce overall system performance.

  3. Higher Energy Bills

    A struggling system often uses more energy to maintain comfortable temperatures.

  4. Frequent Performance Issues

    Recurring issues may be caused by internal blockages or contamination affecting system efficiency.

FAQ

Ducted Air Conditioning Cleaning: Your Questions Answered

  • What is ducted air conditioning?

    Ducted air conditioning is a whole-home cooling and heating system that uses a central unit — typically installed in the roof cavity — connected to a network of insulated ducts that distribute conditioned air through vents in each room. Unlike split systems, which cool a single room at a time, ducted systems allow you to control the temperature across multiple zones or the entire property from one controller.

    Because air is constantly circulated through the duct network and vents, dust, mould spores and bacteria accumulate throughout the system over time — including in areas that are completely hidden from view. This is why professional ducted AC cleaning is more involved than split system cleaning: the technician needs to clean the central unit, the return air grilles, accessible duct sections, and all supply vents throughout the property.

    The 99 People offer professional ducted AC cleaning across Brisbane, Ipswich, Gold Coast, Sunshine Coast and Noosa, with packages starting from $99.

  • How often should ducted air conditioning be professionally cleaned?

    Most ducted air conditioning systems benefit from a professional clean every 12 months. Because ducted systems circulate air through a larger volume of ductwork compared to a single split system, they accumulate dust and debris across a wider area — but the enclosed nature of the ducts means the buildup is less visible until it starts affecting performance.

    In South East Queensland's humid climate, mould growth inside ductwork is a genuine risk, particularly in systems that aren't serviced regularly. Signs you may need a clean sooner than 12 months include musty smells coming from vents, reduced airflow in specific rooms, or visible dust buildup around ceiling vents.

    For commercial properties, school buildings, aged care facilities or offices with high occupant density, more frequent cleaning — every six months — is recommended to maintain air quality standards.

  • Why does my ducted air conditioner smell?

    A musty smell from your ducted system vents is almost always caused by mould or bacteria growing inside the return air unit, ductwork or ceiling vents. In Queensland's humid conditions, moisture from the cooling process can settle in duct joints or the drain pan of the central unit, creating ideal conditions for mould to establish and spread through the duct network.

    Once mould is present, every time the system runs it pushes contaminated air through every room in the house simultaneously — which is why ducted mould problems tend to feel more pervasive than split system issues.

    A musty smell that appears seasonally (typically at the start of summer when the system is switched back on after a period of dormancy) is a strong indicator of mould growth during the off-season. Professional cleaning removes the source from the central unit and accessible duct sections.

  • Will cleaning improve airflow and performance?

    Yes — and in ducted systems, the improvement is often noticeable across the entire house rather than just a single room. Restricted airflow in a ducted system is usually caused by blocked return air filters, dirty coil fins on the central unit, or dust buildup in ceiling vents restricting the flow of conditioned air into rooms.

    Once these components are cleaned, air moves more freely through the duct network and each room receives a stronger, more consistent supply of conditioned air. Rooms that previously seemed harder to cool or heat — often those furthest from the central unit — typically show the greatest improvement after a clean.

    Improved airflow also directly reduces energy consumption: when air moves freely, the system reaches the set temperature faster and runs for shorter cycles. This means lower power bills, particularly in summer when the system runs for extended periods.

  • Can ducted air conditioning be cleaned without damaging ceilings or vents?

    Yes. Professional ducted AC cleaning is carried out entirely through existing access points — the return air grille, ceiling vents, and the service panel on the central unit itself. No ceiling cutting, drilling or structural work is required for a standard cleaning service.

    The technician removes vent covers and return air grilles, cleans them externally, accesses the coil and fan assembly through the service panel, and cleans accessible duct sections using appropriate brushes and vacuums. All components are carefully reinstalled and the system is tested at the end of the service.

    In rare cases where ductwork has significant internal mould contamination or a damaged section, the technician will advise you of what's found and discuss options — but this is separate from the standard cleaning service and wouldn't be done without your approval.

What Our Clients Say

Testimonials

Customer satisfaction is at the heart of everything we do.
Don’t just take our word for it — see what our customers have to say about their experience with The 99 People.

googlefacebookOverall Rating
4.9
Based on 3,860 Reviews
Melissa W

I was so grateful to get an air conditioning service today due to a leakage issue. Brock is very knowledgeable and gives great advice to keep my system working. I highly recommend using this company.

Melissa W
April 2, 2026
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annette meiers

The gengleman. That came was very profesable Very happy

annette meiers
March 31, 2026
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Alesana Riley

We were quoted three times as much money through another company. 100% this was the best service we have ever received and the value for money was absolutely great. No pressure for useless, we were told exactly what to expect. Our technician was so lovely to talk to, very knowledgeable and was efficient in his time in the house. We will be back for another service.

Alesana Riley
March 30, 2026
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Peter Dwyer

I've just moved and the air-conditioners had black mould and were blocked. I had the platinum clean and they both ended up like new and no longer need replacing. An awesome job Ele. Thanks heaps 👍

Peter Dwyer
March 24, 2026
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Dasha Bohm

Thank you for prompt response to my enquiry. Dominic did a great job, aircon feels nice and strong now. Thank you for job well done.

Dasha Bohm
March 24, 2026
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SQA AFG

Lovely guy came at 10am as booked, he even helped us set up the control for one of the aircons. Very good & efficient service.

SQA AFG
March 24, 2026
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Questions About Ducted Air Conditioning Cleaning?

Questions?

A professionally cleaned ducted system helps create a healthier indoor environment and keeps your air conditioning running efficiently.

Get in touch with our team to organise ducted air conditioning cleaning or to discuss the right service option for your property.

  • 100% satisfaction guaranteed
  • Warranty on all services
  • Low prices starting from $99
  • Discounts for multiple services
  • Fully licensed and insured
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A person standing on a ladder replaces an air filter in a ceiling vent as part of routine ducted air conditioning cleaning.