Mould Inspection and Mould Testing Perth
Concerned about mould in your Perth property? Kleen Slate Services provides comprehensive mould inspection and mould testing services to identify, assess, and resolve mould problems in residential and commercial properties across the Perth metropolitan area.
Our IICRC-certified technicians use advanced equipment and proven methodologies to detect visible and hidden mould, identify moisture sources, and provide detailed reports with solutions to protect your property and health.
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Mould Detection Services for Perth Homes and Businesses
Mould can cause health issues, including allergic reactions, respiratory problems, and other symptoms. People with asthma, allergies, or compromised immune systems are particularly vulnerable to mould exposure. Beyond health concerns, mould can cause significant damage to building materials and contents, potentially leading to expensive repairs and a decrease in property value.
Mould assessments involve a thorough inspection and evaluation of a building or property for the presence of mould, which is crucial in identifying potential health hazards and risks associated with mould growth, as well as determining the source and extent of the problem.

Our Mould Inspection and Testing Services in Perth
Kleen Slate Services offers two options for mould inspection and testing, depending on your needs and budget:
Option 1: Visual/Physical Mould Inspection
Our initial mould inspection service is ideal for properties where mould is visible or suspected in specific areas. This cost-effective option provides a thorough assessment of your property's mould situation.
What's Included:
- Travel to and from your property – Convenient scheduling across the Perth metropolitan area, including statewide
- Comprehensive visible/physical mould investigation – Internal property inspection to identify all visible mould growth
- Moisture reading – Advanced moisture detection equipment, including moisture meters and humidity testing, to pinpoint problem areas
- Thermal imaging – Infrared technology to detect temperature differences in walls, ceilings, and floors, with temperature variations indicating the presence of moisture, a breeding ground for mould
- Detailed report – Comprehensive documentation of findings, potential sources of water damage/mould, property recommendations, and actions required
Following your inspection, you'll receive a Remediation Action Plan and/or quotation for mould removal if required.

Option 2: Comprehensive Mould Testing with Laboratory Analysis
For properties requiring in-depth analysis, our comprehensive testing service provides detailed identification of mould species and contamination levels through professional laboratory analysis conducted by certified hygienists.
What's Included:
- Travel to and from your property
- Detailed inspection – Thorough examination of the internal property to identify all sources of mould and bacteria
- Air and surface sampling – Professional collection of air and surface samples using specialised equipment to measure moisture levels
- Laboratory analysis – Samples sent to accredited laboratories for analysis, providing specific information on mould species and bacteria present
- Comprehensive factual report – Complete documentation including general and remedial recommendations, third-party reviewed by a certified Occupational Hygienist (COH)
- Flexible sampling – 8-10 samples allowed; you're only charged for samples collected and analysed
This service provides the most accurate and detailed assessment of your property's mould situation, essential for insurance claims, property transactions, or serious contamination concerns.

Our Mould Inspection Process
1. Initial Consultation and Site Assessment
The process begins by interviewing occupants to determine their risk of mould-related or respiratory issues, and finding moisture sources, such as in wall cavities, under carpets, ceilings, or air conditioners.
2. Visual Inspection
Our technicians look for visible signs of growth, including black or green spots on walls, ceilings, or floors, as well as musty odours, checking areas that are prone to moisture, such as bathrooms, kitchens, and basements.
3. Advanced Detection Equipment
Our expert inspection team uses non-destructive devices such as moisture meters, thermal imaging cameras, hygrometers, wall cavity inspection cameras and dust particulate counters to detect hidden moisture, isolate areas of potential mould growth and determine the cause of the mould.
4. Sample Collection (Option 2)
Air sampling includes collecting air samples using specialised equipment, such as spore traps, that pull air through a filter to catch mould spores, which helps assess the types and quantities of airborne mould spores. Surface testing involves collecting samples directly from areas where mould is visible or suspected using swabs, tape lifts, or bulk samples.
5. Laboratory Analysis (Option 2)
Samples are sent off to an independent laboratory for analysis, with results typically available within 72 hours, providing exact information about any toxins found in your home or office.
6. Detailed Reporting
Our report provides all background information relating to the investigation, along with any relevant history of mould and dampness in the building, recommendations for mould remediation, and includes photographs taken during the inspection process.
Understanding Mould Testing Methods
Air Sampling
Taking air samples during a mould inspection is important because mould spores are not visible to the naked eye, and the types of mould present can often be determined through laboratory analysis of the air samples, helping provide evidence of the scope and severity of a mould problem.
Air sampling is best used when there are signs of a mould problem, such as musty odours or health symptoms, but no visible mould can be found, and it is ideal for evaluating indoor air quality and detecting hidden mould growth behind walls, under floors, or in ventilation systems.
Surface Sampling
Surface testing identifies the type of mould and determines whether the growth is active. A tape lift sample will determine the genus type of mould that is present, though it will not provide information regarding the specific species of mould.
Combined Approach
Many professionals recommend using surface testing and air sampling in certain situations, as this gives a complete picture of the mould problem and ensures no contamination is overlooked.
Frequently Asked Questions About Mould Inspection and Testing
How much does mould inspection and testing cost in Perth?
The costs in Perth can vary depending on several factors, including the size of your property, the extent of the suspected mould problem, the number of samples required for laboratory analysis, and whether you choose a visual inspection or comprehensive testing with laboratory analysis. To get an accurate quote tailored to your specific situation, please complete our online form to book an inspection and receive an accurate quote for your property.
How long does a mould inspection take?
A typical visual/physical mould inspection usually takes 1-2 hours, depending on the size of your property and the extent of the investigation required. For comprehensive mould testing with laboratory analysis, the on-site inspection takes a similar amount of time, but the complete process, including laboratory analysis and report preparation, typically takes 3-5 business days. We'll provide you with a detailed timeline upon booking your inspection.
What's the difference between mould inspection and mould testing?
Mould inspection is a visual check of your property to spot any visible mould, moisture issues, or conditions that could cause mould, often using tools like moisture meters and thermal cameras. Mould testing goes further by taking air and surface samples for lab analysis to identify the exact mould types, spore levels, and severity. In short, inspection shows where mould is, while testing shows what it is and how severe the problem is.
Do I need mould testing if I can already see mould in my home?
Not always. If mould is visible and the moisture source is clear, a visual inspection and professional mould removal may be enough. However, full mould testing with lab analysis is recommended if you have health symptoms but can’t see mould, suspect hidden mould, need documentation for insurance or legal reasons, want to confirm remediation worked, or need to identify specific mould types for health concerns.
Can I test for mould myself, or do I need a mould inspector?
While DIY mould test kits are available, professional mould inspection and testing provide significantly more accurate and comprehensive results. Professional mould inspectors have specialised training, advanced equipment like thermal imaging cameras and moisture meters to detect hidden problems, proper sampling techniques to ensure accurate results, access to accredited laboratories for detailed analysis, and the expertise to interpret results and provide actionable recommendations. A professional inspection also provides documentation that may be required for insurance claims or property transactions.
What happens after the mould inspection is complete?
Following your mould inspection, you'll receive a comprehensive report detailing all findings, including photographs of affected areas, identification of moisture sources and mould locations, moisture readings and thermal imaging results, and for comprehensive testing, laboratory analysis of mould species and contamination levels. The report will also include clear recommendations for remediation and prevention, and a detailed Remediation Action Plan and/or quotation for treatment and clean-up if required. Our team will walk you through the findings and answer any questions you have about the next steps to restore your property.
Why Choose Kleen Slate Services for Mould Inspection in Perth?
- IICRC Certified Mould Inspectors
- WA Department of Health Approved
- Advanced Equipment and Technology
- Comprehensive Reporting
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