Split System Clean & Check Over in Perth
We take your split system’s indoor unit apart and deep clean it, then give the whole system a general check over. It runs quieter, smells fresh and cools and heats the way it should.
What we clean in the indoor unit
Rinsing the filters helps, but most of the dust, mould and grime sits deeper inside. We open the indoor unit up and clean it part by part, with the wall and floor covered while we work.
- 1Filters
Taken out, washed and dried, then refitted so air flows freely again.
- 2Coil
Cleaned with a coil cleaner that’s safe for the fins, then rinsed until the water runs clear.
- 3Fan barrel
The long fan behind the louvres collects a black build up that a filter clean never touches. We clean every blade.
- 4Drain tray and drain line
Cleaned and flushed so water drains away properly instead of dripping down the wall.
- 5Louvres and casing
The louvres, front panel and casing cleaned of dust and mould spots, inside and out.
A general check over of the whole system
While we’re there, we make sure the rest of the system is in good order and tell you about anything that needs attention.
Cooling and heating
We run the system in both modes and check the air coming out is as cold or as warm as it should be.
Airflow and noise
We check the airflow and listen for rattles, squeals and vibration that point to a problem on the way.
Outdoor unit
We look over the outdoor unit, check the fan and coil, and clear away leaves and anything blocking the airflow.
Wiring and isolator
A visual safety check of the connections, cabling and isolator switch at both units.
Leaks and pipework
We look for water or oil marks, damaged pipe insulation and signs of a refrigerant leak.
Remote and settings
We check the remote and the settings, and show you the modes and timers that save power.
If the check over turns up anything, we explain what we found and give you a quote before any repair. Nothing extra is done without your OK.
Six signs your split system needs a deep clean
A musty smell
A damp, mouldy smell when the unit starts up usually means mould is growing on the coil or fan.
Black spots
Black specks on the louvres or inside the outlet are mould and grime being blown into the room.
Weak airflow
A clogged coil and fan move less air, so rooms take longer to cool down or warm up.
Water dripping
Water running down the wall often means a blocked drain tray or drain line that needs flushing.
Higher power bills
A dirty system runs longer to reach the same temperature, and you pay for every extra minute.
More noise
Build up on the fan barrel throws it off balance, which shows up as a hum, rattle or whistle.
Booking a split system clean
Book online
Fill in the booking form and tell us how many split systems you’d like cleaned and the brands, if you know them.
We confirm
We get back to you to confirm a time and the price before anyone comes out.
Clean and check
A licensed Oasis technician deep cleans each indoor unit and checks over the whole system.
Your report
We tell you what we found and quote for anything that needs fixing before any work begins.
What people ask about split system cleaning
How often, how long, what it costs and what happens if we find a problem.
How often should a split system be deep cleaned?
Once a year suits most homes, ideally in spring before the summer heat. Every six months is better if you have pets, live near the coast or a busy road, or run the system most days, and in bedrooms, offices and shops where it runs for long hours.
What’s the difference between a filter clean and a deep clean?
A filter clean only washes the mesh filters behind the front panel. A deep clean goes further into the unit: the coil, the fan barrel, the drain tray and line, and the louvres and casing. That’s where mould and the musty smell come from, and you can’t reach them without opening the unit up.
Will it make a mess?
No. The unit is cleaned on the wall, and we cover the wall and floor underneath before we start, so the dirty water is caught and taken away. Just clear a little space below the unit so we can work.
How long does it take, and what does it cost?
It depends on how many units you have and how dirty they are. When we confirm your booking, we tell you the price and how long to allow, before anyone comes out. Having several splits cleaned in the one visit is the most cost effective way to do it.
What if the check over finds a problem?
We explain what we found in plain terms and give you a quote for the repair. Nothing extra is done without your OK, and you’re free to have it fixed then or later.
Which brands do you clean?
Do you clean ducted and cassette systems too?
Yes. See our air conditioner cleaning page for ducted systems and ceiling cassettes, in homes and commercial premises across Perth.
Fresh air from your split system
A deep clean and a check over, so it smells clean, runs quietly and costs less to run.