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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 3,828 Reviews
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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David Brocktoff

Very happy with the job. The guy was very professional and would highly recommend him .we will use him in the future

David Brocktoff
February 25, 2026
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nymeria rhoyne

Phenomenal service! Swift, thorough, and completely hassle-free.Will was professional, friendly, and worked with total independence. Highly recommend!

nymeria rhoyne
February 24, 2026
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Jo Botwright

Excellent job Dom gave me some information about how I get the best out of my aircon

Jo Botwright
February 24, 2026
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Nara Copp

Will came and cleaned the internal part of the aircon today with the Ultimate Cleaning Package (for a deep clean) as it was very mouldy. He was friendly and professional. He even mentioned that he would use Clove Oil, which was helpful communication. That allowed me to decline, as my partner is sensitive to clove oil and it would have been a nightmare if that was put on. The rest of the chemicals are effective and impressive. Thanks Will :) what a great guy. Excellent service, excellent communication, and reasonable price! He had all the right equipment to professionally clean it quickly and efficiently.

Nara Copp
February 23, 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.