How Much Does Mould Removal Cost in Australia?
2026 Price Guide
The cost of professional mould removal services in Australia can vary dramatically between jobs.
Just as with any professional service, the quality of mould removal services offered by different professionals can also vary.
In this article, we look at the average cost of mould removal services in Australia, the factors that influence the cost of professional mould removal, and what you need to be aware of when choosing a mould removal professional in Australia.
How much does mould removal cost in Australia?
The average cost of professional mould removal in Australia ranges from $500 to $1,000+ for a single room, up to $5,000+ for a multi-storey family home.
The size of the space and extent of mould treatment required to eliminate mould will ultimately dictate the cost of professional mould removal services.
Average mould removal prices by room size in Australia
Small bedroom: $500 – $1,000+
Kitchen: $700 – $1,200+
Bathroom: $500 – $1,000+
Entire apartment (2-bedroom): $1,500 – $1,800+
Single-storey house: $1,500 – $2,500+
Multi-storey house: $2,500 – $5,000+
Commercial property: Variable from $2,000 – $10,000+
Note: The above prices are exclusive of GST and should be used for indicative purposes only. The exact cost of mould removal for your residential or commercial premises depends on the severity of the mould and your specific requirements.
Factors that Influence the cost of mould removal
No two mould removal jobs are the same. Even when jobs appear similar – on paper, at least – the cost of mould removal can vary dramatically. Some of the factors that influence the cost of mould removal services in Australia include:
Size of the room:
Larger rooms with more mould will naturally cost more than a smaller room with less mould. It’s important to remember that the size of the room is not the only indicator; instead, the extent and size of the affected area are the most significant consideration. It is entirely possible for a small room to have far more mould damage than a large room.
Extent of the damage:
The extent of mould damage, both size and severity, plays an important role in determining the cost of removal services. Mould damage can range from minor surface issues to more serious growth that attacks the structural elements of a building.
Time before treatment:
As a general rule, the longer that mould is left untreated, the harder and more costly it will be to repair. Mould continues to grow and spread; the faster you seek professional removal, the less costly the damage.
Experience of mould professional:
As with any industry, there are good mould removal professionals, and there are some not-so-good ones out there. The experience of the company that you choose will play an important role in determining the cost of mould removal. Choosing an experienced, qualified professional reduces the risk of further damage and ensures that mould removal goes beyond surface cleaning and addresses the root cause of the problem.
Quality of equipment:
The quality of equipment that is used to inspect, test, and clean mould will also determine the cost. Professional mould removal providers should be using equipment and cleaning solutions that are specifically designed to treat harsh mould – these are not solutions that you will find in the supermarket.
Type of mould:
The type of mould will also determine the cost of removal. Mould types range from common moulds, including Cladosporium and Aspergillus, to toxic ones such as Stachybotrys. Common mould (mildew) is cheaper and easier to remove than more complex cases, which involve black mould.
DIY vs. Professional mould removal – what’s the difference?
If Reddit is anything to go by, then you might think that paying for professional mould removal is an unnecessary expense. After all, some vinegar or alcohol and a little bit of elbow grease should be enough to nip it in the bud, right?
Well, not really. Professional mould removal as a service exists for a reason – because it addresses the root cause of mould damage and prevents costly future repairs. Whilst it is easy enough to get rid of surface mould with some rubbing and mild supermarket mould treatment solutions, the effects rarely last.
DIY mould removal addresses surface mould conditions but does not find the source of the problem. DIY treatment risks spreading mould spores and can worsen the problem, which can cause serious health risks to inhabitants.
Professional mould removal is carried out by experienced, trained professionals who can diagnose the cause of mould and provide a long-term mould solution. Whilst professional mould removal commands a higher initial cost than some over-the-counter DIY mould treatment solutions, it can save you serious money and prevent structural damage in the long run.
Pros of DIY mould removal
- Cheaper initial cost
Cons of DIY mould removal
- Risk spreading invisible spores
- Treats surface mould – not the root cause
- Hidden mould is not treated
- Exposure to fumes during cleaning
- Long-term danger to inhabitants
Pros of professional mould removal
- Eliminates spores and mould risk
- Prevents mould exposure
- Prevents mould growth
- Reduces the risk of structural damage
- Addresses the root cause of mould
Cons of professional mould removal
- Upfront cost
Is professional mould removal worth the cost?
Despite what you may read online, DIY mould removal rarely addresses the root cause of the problem and can commonly lead to further mould damage, which can be costly and provide significant health risks to the inhabitants of the property.
Professional mould removal services are an investment in the health and safety of your property’s occupants, as well as the safety of your home. Addressing mould at the root cause prevents further growth and ensures your property is not exposed to potential structural damage and future (costly) repairs.
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