Pre-summer servicing is open. Every visit booked this season leaves with a written report and a dated next-service reminder.
Ask for a window
Cleaning · checks · written reports
Cedar Works services wall splits, ceiling cassettes, window units and ducted systems across the inner suburbs. We measure first, clean properly, and tell you in writing what we found.
What we service
A cassette and a window unit have almost nothing in common once the cover is off. Pick the lane that matches your system so the quote reflects the actual work.
The common household system. Most complaints come from a loaded filter and a biofilm-coated barrel fan rather than anything mechanical.
Not included: refrigerant charging on a system that is losing gas. We locate the leak and quote the repair first.
Shops, studios and open-plan rooms. These hide their problems above the ceiling line, so the condensate pump and the blade seals matter most.
Access note: we need roughly two metres of clear floor beneath the unit and will bring our own platform.
Often written off too early. A bench clean plus new seals usually restores most of the cooling these units had when new.
Worth knowing: if the compressor is tired we will say so rather than charge for a clean that will not help.
One fault here affects every room. We work from the return air filter outward and check that each zone still does what the controller says it does.
Not included: duct replacement or ceiling work. If we find crushed or disconnected duct you get photographs and a separate quote.
Servicing intervals
Service intervals depend on how many hours the unit runs and how much dust the room carries — not on the calendar. These are the intervals we recommend to customers before they book.
| Room and use | Filter wash | Full clean | Drain and coil check |
|---|---|---|---|
| Bedroom, overnight use | Every 6 weeks | Every 12 months | Yearly |
| Living room, evenings and weekends | Every 4 weeks | Every 9 months | Yearly |
| Home office, daytime hours | Every 4 weeks | Every 9 months | Yearly |
| Rented unit, between tenancies | At changeover | At changeover | At changeover |
| Shop or studio, trading hours | Every 3 weeks | Every 6 months | Twice yearly |
Fault index
Six things customers describe on the phone most often, what tends to be behind them, and what we do about it on the visit.
Restricted airflow from a loaded filter or a dirty indoor coil, so the unit moves plenty of air but barely cools it. The second most common cause is a slow refrigerant loss over a season or two.
Measure the temperature difference across the coil and read suction pressure before cleaning anything. If the split recovers after the clean, nothing else is needed. If it does not, the system is being tested for leaks, not topped up.
A blocked or back-pitched drain line, a cracked condensate tray, or ice forming on the coil and melting unevenly when the unit cycles off.
Flush the drain, check the fall along its whole run, and pressure-test for a partial block further down. If ice is the cause we treat the airflow or charge problem behind it rather than the drip itself.
Biofilm on the barrel fan and in the condensate tray. The smell appears on start-up because air passes over damp growth before the coil dries out.
Pull the barrel fan, clean it and the tray properly, then clear the drain so the tray empties fully. Spray-only treatments mask this for a fortnight; removing the growth is the repair.
A room sensor reading the return air instead of the room, a sensor drifting out of calibration, or a unit oversized for the space so it hits setpoint before the room is evenly cooled.
Compare the sensor reading against a calibrated thermometer at seated height, check the sensor position, and confirm the cycle time against the unit's own specification before suggesting anything is replaced.
Debris against the fan blade, loose mounting feet transmitting vibration into the wall, a worn fan bearing, or a compressor labouring against a coil packed with lint and leaf litter.
Clear and rinse the condenser coil, retorque the mounts, isolate the noise with the fan running and the compressor stopped, and record the running current so a labouring compressor can be identified.
A protection cut-out doing its job: high head pressure from a blocked condenser, a failed sensor, or a drain float switch tripping because the tray cannot empty.
Read the code against the manufacturer's table, then test the circuit it points to. Send us the code when you enquire and we will arrive with the likely parts on the van.
How a visit runs
A single-unit service takes about ninety minutes. Nothing is dismantled before it has been measured, and nothing leaves without being written down.
Every unit is logged: model, age, mount condition, drain route and the access we will need. You hear about anything that changes the quote before work starts.
Temperature split, suction pressure, running current and drain fall, recorded while the system is still in the state you have been living with.
Filters, barrel fan or turbine, tray, drain, coil and outdoor condenser. Covers come off, drop sheets go down, and the space is left as we found it.
The same readings taken again, the work done, anything worth watching next season, and a dated next-service recommendation for each unit.
Request a quote
We reply with a fixed price per unit, the time we will need, and the next two windows we can offer. No visit is booked until you have agreed the price.