Mould or Dampness In Your Subfloor? We Provide The Solutions.

Trapped moisture in your subfloor leads to mould, wood rot, and poor indoor air quality.

Protect your home and family with fast, certified subfloor mould removal and long-term prevention solutions.

  • Eliminate musty odours & improve air quality
  • Protect Your Home's Timber Structure
  • Stop rising damp and prevent mould from returning
  • Backed by IICRC Standards – Full Comprehensive Removal
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Get a Subfloor Mould
Assessment & Quote

Our certified technicians will inspect your subfloor, identify the root cause, and provide a tailored treatment and prevention plan.
📞 Speak to us on 1300 702 735 or enquire below.

The Mould Busters Advantage

We Find What
Others Miss

Using advanced thermal imaging and moisture detection we identify hidden leaks and moisture pathways inside walls, ceilings, and subfloors that cause mould to return.

A Permanent
Solution

Our technicians combine mould remediation knowledge with building experience to locate the underlying issue, ensuring it is properly resolved.

Clear and Actionable Plan

Every inspection includes a detailed report with clear recommendations. You’ll know exactly how to remove the mould safely and address the underlying causes to ensure it does not return.

See What Our Customers Say About Us

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 Vlad K profile picture 
 
 
 Vlad K 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Mould Busters were amazing to deal with. Max was especially great - super friendly, easy to talk to and really knew his stuff. He took the time to explain what was causing the problem and what needed to be done, which made us feel a lot more at ease. The whole process was smooth and you could tell they really care about doing a proper job. The place looks and feels so much better now. Big thanks to Max and the team—highly recommend!
  
 
  
 
 
 
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 Phillip S profile picture 
 
 
 Phillip S 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Used in the past Mould Busters . There are very reliable and great service very happy with them ! Highly recommended .
  
 
  
 
 
 
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 Ekaterina L profile picture 
 
 
 Ekaterina L 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Great company and fixed out issue with the mould which was found by the building inspector. Highly recommend the guys and thank you again for your hard work!
  
 
  
 
 
 
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 Anna N profile picture 
 
 
 Anna N 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
I had a fantastic experience with Mould Busters Melbourne. I had a ceiling leak that was fixed, but I wasn’t sure if there was any mould there since my family has been feeling unwell. The team promptly responded to my request, came out the next day, did proper mould testing and provided a thorough report  with treatment options and prevention tips.
Super happy with how professional and knowledgeable they were. Highly recommend!!!
  
 
  
 
 
 
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 Aidan P profile picture 
 
 
 Aidan P 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Very professional and knowledgeable.
  
 
  
 
 
 
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 Dmitry T profile picture 
 
 
 Dmitry T 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Used Mould Busters at one of our clients properties, Oki and boys were very professional and knowledgeable. Job was done promptly and within budget. Will definitely recommend them again.
  
 
  
 
 
 
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 Kathy W profile picture 
 
 
 Kathy W 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Mould Busters Melbourne saved my sanity. We uncovered mould in our pantry over the public holiday long weekend which caused great concern. I contacted them and they replied saying they could attend today to assess our issue. They were prompt, polite and efficient. The reassurance they provided was fantastic. Highly recommend
  
 
  
 
 
 
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 Jaimi R profile picture 
 
 
 Jaimi R 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
The Mould Busters team were so efficient and professional. They attended to our property and did a thorough investigation, they also explained what was happening and advised of solutions. Would 100% recommended them.

Specialised Subfloor Mould Removal Solutions

Comprehensive subfloor remediation: from physical mould removal and soil treatment to antimicrobial fogging, ventilation upgrades, and post-treatment verification.

Soil & Debris
Extraction

An exterior shot of a modern home wall divided by colour: grey brick on the bottom and white rendered wall on top. A square, white plastic subfloor ventilation fan is mounted on the lower section, next to a white vertical downpipe. This illustrates the final step in moisture control.

Underfloor Surface Remediation

Severe yellow and black mould growth covering the underside of floor joists and particle board in a damp subfloor crawlspace, with plumbing visible.

Antimicrobial
Fogging

A blue fogging machine dispenses an antimicrobial mist into a dusty residential subfloor area to sanitize and eliminate residual airborne mould spores.

Post-Treatment Verification

Close-up of a digital air sampler screen displaying "SAMPLE COMPLETE" and a green checkmark, confirming successful post-remediation mould spore testing.

Subfloor
Ventilation

A white, square-shaped subfloor ventilation fan installed on the exterior of a building above a grey brick plinth, designed to reduce subfloor humidity.

Detailed
Analysis

A Mould Busters Melbourne technician in PPE uses a bright work light to point out a potential moisture source or defect among electrical wiring in a subfloor.

Soil & Debris
Extraction

An exterior shot of a modern home wall divided by colour: grey brick on the bottom and white rendered wall on top. A square, white plastic subfloor ventilation fan is mounted on the lower section, next to a white vertical downpipe. This illustrates the final step in moisture control.

Underfloor Surface
Remediation

Severe yellow and black mould growth covering the underside of floor joists and particle board in a damp subfloor crawlspace, with plumbing visible.

Antimicrobial
Fogging

A blue fogging machine dispenses an antimicrobial mist into a dusty residential subfloor area to sanitize and eliminate residual airborne mould spores.

Post-Treatment
Verification

Close-up of a digital air sampler screen displaying "SAMPLE COMPLETE" and a green checkmark, confirming successful post-remediation mould spore testing.

Subfloor
Ventilation

A white, square-shaped subfloor ventilation fan installed on the exterior of a building above a grey brick plinth, designed to reduce subfloor humidity.

Detailed
Analysis

A Mould Busters Melbourne technician in PPE uses a bright work light to point out a potential moisture source or defect among electrical wiring in a subfloor.
IICRC
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Why Subfloor Mould Removal Matters

Moisture in your subfloor isn’t just a smell problem: it’s a structural and health risk. Left untreated, it can rot joists, damage flooring, and spread mould spores throughout your home.

At Mould Busters Melbourne, we:

  • ✅ Physically remove mould from soil, timber, and brickwork (not just spraying over it)
  • ✅ Disinfect and fog the entire subfloor with antimicrobial treatment
  • ✅ Verify results with pre & post air/surface testing and accredited lab reports
  • ✅ Add prevention like ventilation or drainage solutions so the problem doesn’t return

The result: a safe, dry, and mould-free foundation for your home.

A Mould Busters Melbourne specialist in a white hazmat suit and respirator mask investigates a dusty subfloor crawlspace, using a bright LED work light to examine the ductwork and brick foundations.

Our Recent Subfloor Mould Treatment in Balwyn, Melbourne.

See how we transformed a mould-affected subfloor into a clean, dry, and healthy foundation for this home.

Recent Subfloor Mould Removal Results.

Extreme close-up of heavy, textured, brown and yellow fungal or mould growth on the underside of a material or soil in a damp subfloor area.
A Mould Busters Melbourne technician applies a specialized anti-mould solution with a sprayer to the brick foundation and corner of a subfloor area.
Wide, dark view of a contaminated residential subfloor crawlspace showing moisture damage, debris, ductwork wrapped in insulation, and support piers.
A blue fogging or misting device is actively dispensing an anti-mould remediation agent into a large, dusty subfloor area to treat airborne spores and surface growth.

Ready for a Safer, Healthier Home?

Don’t let hidden subfloor mould or dampness threaten your family’s health or your home’s foundation. With certified remediation and prevention, we’ll make sure your subfloor is clean, dry, and mould-free, for good.

Here’s what you’ll get with your free assessment:

  • Expert inspection of your subfloor by certified technicians
  • A clear plan for mould removal & long-term prevention
  • Advice on ventilation or drainage tailored to your property
  • Optional pre & post testing with accredited lab reports
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Book Your Subfloor Mould Assessment Today

Our specialists are ready to help.
📞 Call 1300 702 735 or fill in the form to get started.

Frequently Asked Questions

What is subfloor mould removal?

Subfloor mould removal is the process of physically removing mould-contaminated soil, timber, and brickwork under your home. We follow IICRC standards, combining physical brushing, soil extraction, antimicrobial treatment, and fogging to ensure the mould is gone for good.

We provide pre and post-treatment testing, with samples sent to an accredited lab. This gives you a verified report confirming the remediation was successful.

No. Spraying alone only masks the problem. To be effective, mould must be physically removed from affected surfaces and soil. That’s why we follow the global IICRC standard for proper remediation.

Common causes include poor ventilation, drainage issues, plumbing leaks, and high soil moisture. During your free assessment, our technicians identify both the mould growth and the underlying cause.

Most jobs take a few days, depending on the size of the subfloor and the level of contamination. 

Yes. After remediation, we can install subfloor ventilation, add perimeter vents, or recommend drainage solutions. These measures stop moisture build-up and keep your home mould-free long term.

Your Local Melbourne Mould Specialists

From our base in Braeside, our certified technicians proudly serve all of Metropolitan Melbourne. We combine industry-leading expertise with genuine local service.