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1300 099 778

Cassette Air Conditioner Cleaning

Professional cleaning to remove dust, mould, and bacteria, helping cassette air conditioning systems operate efficiently and deliver cleaner indoor air.
1300 099 778
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Modern living room with a built-in sofa, round coffee table, beige curtains, and a freshly serviced cassette air conditioner blowing cool air toward a glass door leading to a patio with green outdoor furniture. Cassette Air Conditioner Cleaning ensures pure comfort.

Professional Cassette Air Conditioner Cleaning

Cassette air conditioners are ceiling-mounted systems designed to distribute air evenly across a room, making them common in commercial spaces and open-plan environments. Because these systems draw air from above and operate continuously, dust, moisture, and contaminants can accumulate inside the unit over time.

Our technicians provide professional cassette air conditioner cleaning services designed to thoroughly clean internal components, support healthier indoor air quality, and help maintain system performance.

Cassette systems require careful disassembly and specialised cleaning due to their ceiling-mounted design. Our structured cleaning process ensures a deep, effective clean while protecting surrounding areas.

  • Assessment & Safe Disassembly: The system is carefully inspected and key components are removed to allow full access for cleaning.

  • Thorough Internal Cleaning: Internal and external components are deep cleaned to remove dust, dirt, mould, and bacteria using professional-grade products and equipment.

  • Careful Reassembly: All components are reassembled securely, ensuring the system is correctly fitted and ready to ope

  • Final Testing & Performance Check: The system is tested to confirm proper airflow, cooling performance, and clean air delivery.

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Cassette Air Conditioner Cleaning Packages

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

  • Cassette System Standard

    Stage 1 - Preparation

    • Turn off the air conditioner and disconnect the power supply

    • Remove the outer panel and filters

    • Lay down protective coverings to catch debris and dust

    • Disassemble all internal fan and electronic functions from aircon unit

    Stage 2 - Filters and Grilles Cleaning

    • Wash the filters and outer casing with a mild detergent

    • Rinse thoroughly and let them air dry completely

    • Clean the air direction grilles with a soft brush or cloth to remove any dust and dirt

    Stage 3 - Internal Cleaning

    • Install/assemble Hydrowash bag under unit

    • Use a specialised aircon cleaning solution to spray/treat the evaporator coils and drain pan

    • Allow the solution to sit for the recommended time to dissolve grime and mould

    • Gently hydrowash coils and rinse with water to remove debris and mould

    • Flush drain pan to clean outlet

    Stage 4 - Sanitise and Deodorise

    • Treat all coils and drain with anti bacterial solution to kill all mould spores

    • Treat coils and filters with odour locking deodoriser

    Stage 5 - TGA Virus Protection Treatment

    • Treat all coils and internal components with TGA APPROVED antiviral solution

    Stage 5 - Reassembly and Testing

    • Reinstall all internal components, the dry filters and outer panel

    • Reconnect the power supply and turn on the air conditioner

    • TGA fogging solution treatment and allow nano particles to circulate through aircon

    • Check for proper operation and ensure no unusual noises or leaks

  • Cassette System Premium

    Stage 1 - Preparation

    • Turn off the air conditioner and disconnect the power supply

    • Remove the outer panel and filters

    • Lay down protective coverings to catch debris and dust

    • Disassemble all internal fan and electronic functions from aircon unit

    Stage 2 - Filters and Grilles Cleaning

    • Wash the filters and outer casing with a mild detergent

    • Rinse thoroughly and let them air dry completely

    • Clean the air direction grilles with a soft brush or cloth to remove any dust and dirt

    Stage 3 - Internal Cleaning

    • Install/assemble Hydrowash bag under unit

    • Use a specialised aircon cleaning solution to spray/treat the evaporator coils and drain pan

    • Allow the solution to sit for the recommended time to dissolve grime and mould

    • Gently hydrowash coils and rinse with water to remove debris and mould

    • Flush drain pan to clean outlet

    Stage 4 - Sanitise and Deodorise

    • Treat all coils and drain with anti bacterial solution to kill all mould spores

    • Treat coils and filters with odour locking deodoriser

    Stage 5 - TGA Virus Protection Treatment

    • Treat all coils and internal components with TGA APPROVED antiviral solution

    Stage 5 - Reassembly and Testing

    • Reinstall all internal components, the dry filters and outer panel

    • Reconnect the power supply and turn on the air conditioner

    • TGA fogging solution treatment and allow nano particles to circulate through aircon

    • Check for proper operation and ensure no unusual noises or leaks

  • Cassette System Ultimate Nano

    Stage 1 - Preparation

    • Turn off the air conditioner and disconnect the power supply

    • Remove the outer panel and filters

    • Lay down protective coverings to catch debris and dust

    • Disassemble all internal fan and electronic functions from aircon unit

    Stage 2 - Filters and Grilles Cleaning

    • Wash the filters and outer casing with a mild detergent

    • Rinse thoroughly and let them air dry completely

    • Clean the air direction grilles with a soft brush or cloth to remove any dust and dirt

    Stage 3 - Internal Cleaning

    • Install/assemble Hydrowash bag under unit

    • Use a specialised aircon cleaning solution to spray/treat the evaporator coils and drain pan

    • Allow the solution to sit for the recommended time to dissolve grime and mould

    • Gently hydrowash coils and rinse with water to remove debris and mould

    • Flush drain pan to clean outlet

    Stage 4 - Sanitise and Deodorise

    • Treat all coils and drain with anti bacterial solution to kill all mould spores

    • Treat coils and filters with odour locking deodoriser

    Stage 5 - TGA Virus Protection Treatment

    • Treat all coils and internal components with TGA APPROVED antiviral solution

    Stage 5 - Reassembly and Testing

    • Reinstall all internal components, the dry filters and outer panel

    • Reconnect the power supply and turn on the air conditioner

    • TGA fogging solution treatment and allow nano particles to circulate through aircon

    • Check for proper operation and ensure no unusual noises or leaks

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 Regular Cassette Air Conditioner Cleaning Matters

Keeping your cassette system clean supports indoor air quality, system efficiency, and long-term reliability.

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Signs Your Cassette Air Conditioner Needs Cleaning

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

  1. Reduced Airflow

    Blocked filters or internal components can restrict airflow and reduce cooling effectiveness.

  2. Unusual Noises

    Buzzing, rattling, or abnormal sounds may indicate buildup affecting internal parts.

  3. Unpleasant Odours

    Musty smells are often caused by mould or bacteria inside the unit.

  4. Higher Energy Bills

    A system working harder than necessary often consumes more energy.

FAQ

Frequently Asked Questions About Cassette Air Conditioner Cleaning

  • How often should cassette air conditioners be professionally cleaned?

    Most cassette systems benefit from professional cleaning every 6 to 12 months, depending on usage and indoor conditions.

  • Can cassette air conditioners be cleaned safely without damaging ceilings?

    Yes. Professional cleaning is carried out carefully to protect ceilings, fittings, and surrounding surfaces.

  • How long does a cassette air conditioner cleaning service take?

    Most standard cassette cleaning services take approximately 2–3 hours, depending on the system size and condition.

  • Will cleaning improve air quality?

    Yes. Removing internal dust, mould, and bacteria helps improve indoor air quality and airflow.

  • Can cassette air conditioners be cleaned without removing the unit?

    Yes. Cleaning is performed by safely dismantling internal components while the unit remains installed.

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 3,840 Reviews
Joy Bevan

Happy with the work, good communication, very polite and well worth the money for cleaning 3 ceiling fans. Thank you

Joy Bevan
March 7, 2026
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John Nguyen

very professional and overall great experience. will use again in the future. thank you brayden

John Nguyen
March 6, 2026
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Maddison Winks

The Team at 99People were an absolute dream. Online booking was super simple, we were informed and updated via SMS on appointment time, optional extras and ETA of our on the job provider. The clean was completed to a high standard with a friendly smile and professional attitude. Shout out to Levi for your fantastic work!Getting our air conditioning cleaned felt like a huge task, but 99People made it so easy.

Maddison Winks
March 1, 2026
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Natalie Hastie

Fantastic service and great pricing. We needed a flea treatment applied to our rental and The 99 People had it completed within 16 hours of my initial call. The Technician was on time and very respectful. Well done and Thanks Will 👍🏻

Natalie Hastie
February 28, 2026
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Paul Fleming

Dedicated and accountable

Paul Fleming
February 27, 2026
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Mark Cook

Excellent service very timely and efficient. Highly recommended

Mark Cook
February 26, 2026
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Questions About Cassette Air Conditioner Cleaning?

Questions?

A professionally cleaned cassette system helps maintain a healthier indoor environment and supports reliable air conditioning performance.

Get in touch with our team to organise cassette air conditioner 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 in a black shirt and cap is performing cassette air conditioner cleaning or servicing on a ceiling-mounted unit in a white room.