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How Often Should You Clean Your Air Conditioner in Mackay?

10 September 20263 min read
Poster explaining that a clogged air conditioner filter can increase energy use by up to 15%

In Mackay, your air conditioner works harder than almost anywhere else in the country. Long, humid summers mean months of heavy use — and all that warm, moist air moving through your split system is the perfect breeding ground for mould, bacteria and dust build-up.

So how often should you book a professional clean? For most Mackay homes, we recommend every 12 months. But there are a few situations where every 6 months is a smarter call.

Clean every 6 months if…

  • You have pets — hair and dander clog filters fast
  • Anyone in the home has allergies, asthma or sinus trouble
  • You run the aircon most days through summer
  • The unit is in a kitchen or near cooking areas (grease and grime build up)
  • You live near the coast — salt air is harder on coils

Signs your aircon is overdue for a clean

Not sure when yours was last done? Your aircon will usually tell you. Watch for these warning signs:

  • A musty or mouldy smell when the unit turns on
  • Weak airflow, even on full fan
  • The unit takes longer to cool the room than it used to
  • Higher power bills with no change in how much you use it
  • Visible dust or dark spots on the vents or filters

Why a professional clean beats a filter rinse

Rinsing your filters at home is a great habit — but it only cleans the surface. Mould, grime and bacteria build up deep inside the unit on the coils, barrel fan, back board and drain line, where you can't reach.

A professional clean strips the unit down, applies cleaning solution to break down mould and grime, then hydro pressure washes the coils, fan, airway and drain line before everything is sanitised and reassembled. That's what gets your air genuinely clean — and can improve efficiency by up to 20%, which shows up on your power bill.

The easy rule of thumb

Book a clean every spring before the Mackay heat arrives, and you'll head into summer with cleaner air, better cooling and a lower power bill. If it's been more than a year — or you can't remember the last clean — it's time.

Ready to Book a Clean?

Get a free, no-obligation quote on aircon, solar or roof cleaning. We'll get back to you fast.