Mould and your health: what's worth knowing.

Nearly every home can get mould at some point, and most of it is manageable. This page is about telling the difference between a cosmetic spot and a health issue — calmly, and without the scare campaign.

How mould can affect people

Mould reproduces by releasing spores (amplification) — particles small enough to stay suspended in the air and be breathed in without you ever noticing. Plenty of people live alongside low levels and feel nothing at all. Others react, and keep reacting: a blocked nose that never quite clears, a cough that lingers past the cold, itchy eyes, irritated skin, headaches, broken sleep, fatigue, a general flatness that's easy to blame on a busy month.

Sensitivity varies enormously from person to person, which is why one household member can be miserable while everyone else is fine. As a rule, babies and young children, older people, and anyone with asthma, allergies or reduced immunity tend to feel it first and hardest.

There's one pattern worth paying attention to: if symptoms ease when you're away from the property and return within a day or two of coming home, the building is worth investigating — not just the person.

Signs it's time to act

Visible mould that returns after cleaning
A musty smell in a room, cupboard or wardrobe
Condensation on windows most mornings
A past leak or flood that was dried “near enough”
Symptoms that ease when you leave the house

Who has the most to gain from checking

Not everyone needs a laboratory report. These are the situations where finding out beats wondering:

Households with babies or young children

Small lungs, more hours spent at floor level where spores settle

Anyone with asthma, allergies or reduced immunity

The group most likely to react, and to keep reacting

Childcare centres, schools and aged care

Where the people in the building can't advocate for themselves

Tenants

A report gives you something objective to hand your property manager, instead of a photo and a hope

Landlords, property and commercial managers

Documented cause and clearance protects everyone, including you

Employers

Indoor air sits squarely inside your workplace health obligations

General information only — not medical advice. If you have health concerns, please speak with your GP.

Not sure how serious it is?

Get our Home Mould Check pack, delivered digitally — a ten-minute walk-through of your own home. Where mould hides, what the early signs look like, the three moisture sources behind almost every case, and the point at which it's worth testing at no cost.

Book a Free Mould Assessment