Evaporative cooler
cleaning in Perth
Roof-mounted evaporative air conditioning servicing and cleaning. The unit pulls outside air through wet cooling pads, so the water in the tank and the state of the pads decide the air you breathe. Best done as a pre-summer service clean.
$290 fixed · 2–3 hours on site · pads, tank, pump and fan
Whatever is in the water is what you breathe
An evaporative cooler works on a completely different principle to a split or ducted system. There is no refrigerant and no cold coil. A pump lifts water from a tank in the base of the unit and spreads it over cooling pads on all four sides; a fan then drags outside air through those wet pads and pushes the cooled air down into the house.
That means the unit on your roof is an open box of standing water sitting in the Perth sun. Over a season the tank collects mineral sediment, dust, leaves and sometimes a dead bird or two. The pads fur up with scale, collapse, and stop wetting evenly — so the air comes in warmer, smells, and carries whatever is growing in the tank.
A service clean empties and scrubs that tank properly rather than stirring it around, descales the base and the water distribution tubes, flushes or replaces the pads, and checks the parts that fail quietly: the pump strainer, the float valve and water level, the bleed-off, the fan bearings and the belt tension.
The right time is before summer. An evaporative system that has sat idle through winter with water residue in the base is the one that smells for the first week of hot weather.
What's included
- Roof access, power and water isolated, unit inspected and photographed
- Water tank drained, sludge and sediment removed and flushed out
- Tank and cabinet interior scrubbed, sanitised and descaled
- Cooling pads removed and flushed, or replaced when scaled or collapsed
- Water distribution tubes and spray bar cleared
- Pump strainer cleaned, float valve and water level set
- Bleed-off confirmed running
- Fan barrel, bearings and belt tension checked
- Refill, run-up, even wetting of all four pads confirmed
- Photo report of anything needing a licensed technician
How we clean an evaporative cooler
Four steps, about two to three hours on the roof.
- 1
We isolate it on the roof
Power and water off, the lid comes off, and we check the pads, the tank and the fan for rust and build-up.
- 2
We drain the water
The tank is emptied and the sludge and mineral scale are scooped and flushed out — not stirred around.
- 3
We clean or change the pads
Pads get flushed, or replaced if they are scaled up. The pump, float and water tubes are cleaned and checked.
- 4
We refill and test
Fill it back up, run it, check all four pads wet evenly and that good cool air is coming into the house.
Evaporative cooler cleaning price
Full service clean
- Water tank drained, de-sludged and descaled
- Cooling pads flushed or replaced
- Water distribution tubes and spray bar cleared
- Pump, float valve and water level checked and set
- Fan, bearings and belt checked
- Refill, run-up and even-wetting test
- Photo report
Split system on the same visit
- Many Perth homes run an evap plus a split in a bedroom
- Same visit, no second call-out
- Coil, barrel fan and filters cleaned
- Drain flushed and tablet fitted
All prices in AUD, Perth metro, fixed in writing before we book. Send photos and we confirm by email.
Evaporative cooling units we service
Get an aircon cleaning quote in Perth
Fill in the form, add a few photos of your unit, and we'll reply by email with the price and the first date we can be there. No one needs to visit first.
Evaporative cleaning — your questions
$290 fixed for a standard roof-mounted unit, including the tank, the pads, the pump and the fan. Replacement pads, if yours are finished, are quoted from the photos before we start.
Before every summer. A unit that has sat through winter with residue in the base is the one that smells in the first week of hot weather.
No. Pads are flushed if they are sound and only replaced when they are scaled up, collapsed or furred with mineral build-up. We show you the photo either way.
Almost always. The smell comes from the standing water and the sludge in the tank, and from pads that are no longer wetting evenly. Both are dealt with in the service clean.
Yes, roof access is part of the job and the unit is isolated from power and water before anything is opened.
No, cleaning only. If the pump, float or motor has failed we photograph it and tell you to call a licensed technician.
Also cleaning: split system cleaning · ducted air conditioning cleaning · all air conditioner cleaning services in Perth