Cassette
Air Conditioning
Artarmon Air Conditioning services, repairs and deep cleans cassette air conditioners across Sydney’s Lower North Shore. Whether your ceiling cassette is due for a service or not cooling as it should, a licensed technician will find out why and keep it running efficiently, quietly and safely.
What Is a Cassette Air Conditioner?
A split system air conditioner consists of two main components, an indoor unit and an outdoor unit, connected by refrigerant pipes and electrical cables. There are several types of split systems, including hi wall splits, floor consoles, cassettes, and split ducted systems.
A cassette air con features an indoor unit mounted in the ceiling, with supply air discharged through vents on each side and a return grille in the centre. The outdoor unit is installed externally and works in tandem with the indoor unit to transfer heat.
Cassette systems are ideal for open-plan areas, offices, and living spaces where wall mounting isn’t practical. They distribute air evenly in four directions, blending neatly into the ceiling for a clean and unobtrusive look.
Why Regular Servicing Matters
Regular servicing helps your split system perform at its best year-round. A well-maintained system will:
Improve energy efficiency, saving you money on power bills
Prevent costly breakdowns before they happen
Reduce dust, mould, and odours for healthier indoor air
Extend the lifespan of your unit
If it’s been more than 12 months since your last service, it’s time to book one in.
What Our Cassette Service Includes
We offer four levels of air conditioning service: Essential, Standard, Premium and Premium Pro Max Ultra, so you only pay for what your system actually needs. Every service includes cleaning the filters, and checking the condensate drain.
See the table below for exactly what's included at each level.
All work is carried out by a licensed air conditioning technician in line with the Refrigerant Handling Code of Practice 2025, AS/NZS 5149 and the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989.
| Cassette | Essential | StandardMost popularPopular | Premium | Premium Pro Max UltraPro Max |
|---|---|---|---|---|
| Filters cleaned | Included | Included | Included | Included |
| Drain tested | Included | Included | Included | Included |
| Test run to confirm operation | Included | Included | Included | Included |
| Operating temperatures and airflow recorded | Included | Included | Included | Included |
| Written report on issues found | Included | Included | Included | Included |
| Covers and louvres removed and washed | Included | Included | Included | |
| Drain flushed | Included | Included | Included | |
| Indoor coil disinfected | Included | Included | Included | |
| Outdoor unit case wiped down | Included | Included | Included | |
| Debris cleared around outdoor unit | Included | Included | Included | |
| Full deep clean of the indoor unit | Included | Included | ||
| Fan barrel removed and cleaned off the unit | Included | Included | ||
| Indoor coil chemically cleaned, disinfected and deodorised | Included | Included | ||
| Full deep clean of the outdoor unit | Included | |||
| Outdoor coil and condenser fan cleaned | Included | |||
| Minor rust correction, outdoor unit | Included |
Book Your Cassette Service Today
Keep your air conditioner performing at its best with a professional service from Artarmon Air Conditioning. We provide thorough, reliable maintenance and honest advice. No upselling, just quality work done right the first time.
Service Areas
Based in Artarmon, we service and repair cassette air conditioners across Artarmon, Chatswood, Castle Cove, Lane Cove, Willoughby, Northbridge, Naremburn, Crows Nest, St Leonards, North Sydney, Mosman, Cremorne, Roseville, Lindfield, Killara, Gordon, Pymble, St Ives, Turramurra and Wahroonga.
See every suburb we cover on our Lower North Shore and Upper North Shore pages.
Frequently Asked Questions
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A cassette air conditioner is an indoor unit fitted up inside the ceiling, with only a square fascia panel visible from below, blowing conditioned air out of all four sides. Artarmon Air Conditioning services, repairs and cleans cassettes across Sydney's Lower North Shore, most often in offices, shops and open-plan living areas where there is no suitable wall to mount a split system on.
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It is usually the drain line rather than the unit. Artarmon Air Conditioning finds that a failed condensate pump normally shuts the system down on an error rather than letting water out. A stain more often means the drain is not connected correctly, or the line is uninsulated, so cold water inside makes the pipe sweat and drip onto the ceiling. We inspect it and tell you what it needs.
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Usually that is dust rather than mould, thrown across the ceiling surface by air leaving a filter that is no longer catching much. Artarmon Air Conditioning sees it most on cassettes in shops and offices that run long hours. Cleaning the marks off the ceiling does not stop them coming back, because the cause is the filter and the coil behind it, not the paint.
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It depends. It is overhead work from a ladder, with a fascia panel that has to be released and supported while you do it. Artarmon Air Conditioning cleans the filters at every service level. If you do it yourself, the part that matters is seating the filter squarely on the way back in, because a gap around it lets dust go straight onto the coil.
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Check your lease, ideally before a fault turns it into an argument. In most commercial leases the tenant maintains the air conditioning inside their own tenancy, while the landlord or the strata owns any building-wide plant it connects to. Artarmon Air Conditioning services the units inside your tenancy and will tell you plainly when a fault sits outside it, rather than billing you to find out.
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No. A ducted system runs ductwork from one indoor fan coil to outlets in several rooms, while a cassette is a single indoor unit sitting in the ceiling of one room or open area and blowing directly into that space with no ductwork at all. Artarmon Air Conditioning works on both, and in offices a cassette is often one of several indoor units on a multi-split or VRF system.