How often should aircon be serviced?
By True Line Air Conditioning · 4 min read
The short answer: once a year for a typical home, ideally in spring before the first heatwave. Rinse the filters yourself each season in between. Heavier users — home offices, bayside homes coping with salt air, and any business running cooling through trading hours — justify more frequent attention.
Why annually, honestly
It’s not an arbitrary interval. Twelve months is roughly how long it takes a Melbourne split system to accumulate enough coil grime to measurably raise running costs, enough drain biofilm to risk an indoor leak, and enough coil moisture history to start smelling musty. Service before summer and you also skip the February repair queue, when every neglected system in the city fails in the same fortnight.
Who needs more than once a year
- Near the bay — salt air corrodes outdoor coils; Sandringham to Mordialloc systems benefit from a mid-season check
- Heavy daily use — home offices and all-day households load filters and coils faster
- Businesses — cooling through trading hours is infrastructure; it belongs on a planned maintenance schedule, not a break-fix cycle
What “serviced” should actually mean
A sticker and a glance isn’t a service. The real job — coil deep clean, drain clear, airflow and refrigerant performance checks, electrical inspection — is broken down in the servicing guide.
The set-and-forget option
The Year-1 Care Plan makes the interval automatic: annual service and clean, priority booking, next-day response and 10% off repairs — included free for the first year with every Trueline Care and Premium installation, or $29/month for any system, no lock-in. Here’s how the maintenance plan works, or book a one-off service — same-week across southeast Melbourne.
Know what your aircon will cost before you call.
Transparent published pricing, sized for your rooms in 30 seconds.