Before and after images showing mould in the air conditioner coil

Why Aircon Deep Cleaning Is the Secret to a Healthier Winter Home

June 2, 2025 Haysadmin No Comments

Date Published: June 2, 2025, Last Updated on July 8, 2025 by Paul Hayward

Why Aircon Deep Cleaning Is the Secret to a Healthier Winter Home

Winter might bring a break from the heat on the Redcliffe Peninsula, but that doesn’t mean your aircon is off duty. Many homes run their split systems in heating mode through the cooler months. If your air conditioner hasn’t been deep cleaned, you could be circulating dust, mould spores, and bacteria through your home’s air without knowing it.

This guide will explain why aircon deep cleaning is essential for a healthier winter home, what the process involves, and why now is the smartest time to act.

Why Aircon Cleaning Matters Even in Winter

It’s tempting to think air conditioning cleaning is a summer task. But during winter, we tend to shut windows and rely more heavily on our split systems for warmth. Without regular cleaning, this creates a perfect storm:

Less ventilation means contaminants stay trapped indoors.
Increased use of the heating mode circulates whatever’s built up in your system.
Cooler, wetter weather (especially after heavy rain) encourages mould in your air conditioner.

Many locals don’t realise winter aircon use can quietly worsen asthma, allergies, and respiratory discomfort—all while increasing power bills. And because winter air often feels “cleaner” outside, it’s easy to forget that inside your home, a dirty air conditioning unit may be doing silent damage to your indoor air quality.

Health Hazards Hiding in Your Split System

Your air conditioning unit can become a breeding ground for:

Mould spores
Bacteria and viruses
Dust mites and pet dander

These pollutants are pushed into your home’s air every time the system runs. This can lead to:

Coughing, sneezing, and itchy eyes
Asthma flare-ups
Headaches and fatigue
Irritated sinuses

And since windows stay closed more often in winter, your family will breathe the same contaminated air longer.

According to Queensland Health, indoor mould and dampness are significant health hazards, particularly for children, seniors, and people with lung conditions.

What Does a Deep Clean Involve?

At Hays Air Conditioning, a split system deep clean goes far beyond wiping filters.

Our professional cleaning process includes:

Disassembling and inspecting key components
Cleaning coils, fan blades, drain pans, and filters
Treating internal parts for mould, grime, and bacteria
Sanitising with safe, eco-friendly solutions

This ensures your unit is properly cleaned, not just surface wiped—so it performs better and blows clean, healthy air.

Deep cleaning is different from general servicing. Servicing checks for issues while cleaning actively removes the build-up that causes them.

Benefits of Aircon Deep Cleaning

Improves air quality by removing allergens and contaminants
Reduces health risks for families with asthma or allergies
Boosts efficiency and lowers energy costs
Extends the life of your air conditioning unit
Prevents mould and odour build-up in the system

Many homeowners in Scarborough, Kippa Ring, and Brighton tell us they’re shocked at how much cleaner their home feels after a single service. Not to mention how much less their unit smells or how fast it starts cooling or heating after a professional clean.

Plus, regular cleaning protects against the long-term accumulation of grime that could compromise your aircon’s internal mechanics and shorten its lifespan.

Why Winter Is the Smart Time to Book a Clean

Here’s why winter is the perfect season for a professional air conditioner cleaning:

Avoid the summer rush – get in before everyone else is trying to book.
Improve winter air quality – crucial when you’re spending more time indoors.
Spot early issues – identify parts needing repair or replacement before breaking down.
Prep for allergy season – reduce mould and allergens before spring hits.
Bundle up – pair a clean with servicing or talk to us about winter specials on replacement systems.

We’ve even seen homeowners realise their split system isn’t worth saving—and decide to upgrade to a new, energy-efficient unit for better heating and cooling year-round.

How Dirty Aircons Cost You More

Apart from health concerns, dirty air conditioning units also hit your wallet. The more dust and mould clog your system, the harder it is to heat or cool your home.

That means:

Higher energy bills
Inconsistent airflow
Louder operation
Increased wear and tear on the motor and fans

A single deep clean can restore up to 30% of lost efficiency. If you’ve noticed your unit running longer, smelling musty, or just not doing the job like it used to, it’s likely overdue.

Not Sure If You Need a Clean?

Here are some signs your split system needs a professional deep clean:

Musty smells or sour air from the vents
Dust is blowing out when the system starts.
Increased sneezing or itchy eyes indoors
High power bills for minimal heating
It’s been 12 months (or more) since your last clean

If any of those sound familiar, it’s time to act. You don’t need to wait until summer, especially since winter use can be just as demanding on your system.

Don’t DIY—Book a Professional Deep Clean

You can clean your aircon filter at home—but that’s only part of the picture. A professional service ensures:

No internal mould or grime is left behind
Your system is tested and serviced safely.
The job is done right—no shortcuts.

At Hays Air Conditioning, we specialise in aircon cleaning near me, especially for split systems in Redcliffe, Scarborough, Newport, and Moreton Bay.

Whether it’s a health concern or preventative care, our deep cleans give peace of mind and better air. Our technicians are friendly, experienced, and local—we’re part of your community.

Final Call: Book Your Winter Clean Now

Don’t let winter allergies or dirty air sneak up on your family.

👉 Book a split system cleaning with Hays Air Conditioning —your trusted local expert.
✅ Redcliffe’s go-to team for deep cleans
✅ Friendly, fast and honest
✅ Clean air for every room

Click here to request a quote or give us a call at 0404 614 814

Let’s make your home cleaner, safer, and more comfortable—starting with your air.