How Often Should You Service Your Air Conditioner in WA’s South West?

Most people don’t think about servicing their air conditioner until something goes wrong.

Usually it happens during the worst possible timing too — the first proper heatwave after Christmas, a packed long weekend in Dunsborough, or one of those freezing July mornings where the house suddenly feels impossible to warm up.

The reality is, regular servicing is one of the simplest ways to keep your system running properly, especially in the South West where air conditioners deal with everything from coastal salt air to long dry summers and heavy winter use.

So, How Often Should You Service It?

For most South West homes, a professional air conditioning service once every 12 months is ideal.

If the system runs heavily year-round — particularly in:

• commercial spaces

• cafes

• offices

• holiday rentals

• larger family homes

• coastal properties

— then servicing every 6 months can be worthwhile.

The more consistently a system runs, the harder it works behind the scenes.

South West Conditions Are Tough on Systems

Air conditioners across Bunbury, Busselton, Margaret River and Dunsborough deal with conditions that gradually wear systems down over time.

Near the coast, salt air can lead to:

• corrosion

• outdoor unit deterioration

• blocked coils

• reduced efficiency

Inland areas like Collie or Harvey often experience long periods of dry heat and dust during summer, which can clog filters and restrict airflow.

Then winter arrives, and many reverse-cycle systems switch straight into heating mode for months.

That constant seasonal change is exactly why preventative maintenance matters.

Dirty Systems Cost More to Run

One of the biggest things people notice after a proper service is how much better the system performs.

Over time, filters and internal components collect:

• dust

• pollen

• pet hair

• moisture

• mould

• coastal debris

When airflow becomes restricted, the system has to work significantly harder just to maintain temperature.

That often leads to:

• higher power bills

• uneven cooling

• noisy operation

• weak airflow

• rooms taking longer to cool or heat

During summer, especially around January heatwaves, those issues become far more noticeable.

Air Quality Matters Too

Servicing isn’t only about efficiency.

Clean systems also improve indoor air quality.

This becomes especially important in:

• family homes

• offices

• homes with pets

• allergy-sensitive households

• coastal homes prone to moisture buildup

We regularly clean systems across the South West where people don’t realise how much dust and mould buildup has accumulated inside over the years.

A clean system simply feels better to live with.

What Happens During a Professional Service?

A proper air conditioning service goes beyond just cleaning a filter.

Typically, servicing includes:

• filter cleaning

• airflow testing

• coil cleaning

• thermostat checks

• refrigerant inspection

• electrical testing

• drainage checks

• performance testing

• identifying wear before major failures occur

Preventative servicing is often what catches small problems before they become expensive repairs in the middle of summer.

The Best Time to Book a Service

The smartest time to service your air conditioner is before peak season arrives.

For cooling:

• September to November is ideal

For heating:

• March to May works well

Unfortunately, many people wait until:

• the first 38-degree day

• Christmas week

• Australia Day long weekend

• or a major breakdown

That’s also when booking availability across the South West becomes much tighter.

Holiday Homes Need Attention Too

Holiday homes around Busselton, Dunsborough and Margaret River are often overlooked because they sit empty part of the year.

But systems in these homes still collect:

• dust

• moisture

• coastal salt

• mould buildup

Especially after winter.

We often see holiday homes switched on for the first big summer booking only to discover airflow issues or faults that could’ve easily been prevented with routine servicing.

A Well-Maintained System Lasts Longer

Modern air conditioning systems are a significant investment.

Regular servicing helps:

• extend system lifespan

• improve reliability

• reduce running costs

• maintain efficiency

• prevent avoidable breakdowns

It also keeps your home consistently comfortable through the South West’s changing seasons.

Local Experience Makes a Difference

Heating and cooling systems in the South West deal with very different conditions depending on location.

A coastal home in Yallingup faces different challenges to a family home in Eaton or a commercial space in Bunbury CBD.

At Pergo Air, we provide professional servicing, preventative maintenance, cleaning and repairs tailored specifically to South West conditions — helping homes and businesses stay comfortable year-round.