Professional Mould Cleaning Services and Inspections

Mould inspections, removal, and misting treatment for homes and properties across Northern NSW.

Book a Free Quote for Mould Cleaning

Visible mould in your home or rental property? Request a free quote online in under two minutes. Describe the affected area, upload a photo if you have one, and an unmould technician will confirm availability and pricing — no obligation to proceed.

For complex cases with suspected hidden mould, a water damage history, or a large affected area, an on-site assessment gives you a complete picture before any work begins. The $385 call-out fee covers one hour at your property, humidity sensor mapping, thermal imaging, and a full written report.

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Why Should You Trust Unmould's Mould Inspection and Air Quality Expertise?

All Unmould technicians hold current training in mould inspection and remediation techniques, including the use of professional-grade moisture meters and thermal imaging cameras. Every inspection follows a documented assessment process, not a visual check and a verbal summary.

Equipment used on every job includes calibrated moisture meters for identifying damp materials behind surfaces, infrared thermal imaging cameras to locate hidden dampness without invasive investigation, and HEPA air filtration units to improve indoor air quality during treatment and contain spores throughout the process.

Improving indoor air quality is a core part of every unmould job, not an add-on. Post-treatment air quality checks confirm spore counts have returned to normal levels before the job is closed.

What Mould Cleaning and Removal Services Does Unmould Offer?

Mould inspection and hidden mould detection — A full property assessment using moisture meters, thermal imaging, and air and surface sampling. Suited to any property with visible mould, a persistent mould smell, or a history of water damage.

Mould misting treatment — ULV fogging disperses biodegradable antimicrobials through the air volume and across surfaces in a space, reaching inside wall cavities, roof spaces, and cabinetry that direct cleaning cannot access. Suited to post-remediation prevention, high-humidity environments, and properties after flooding.

Air purification — HEPA air filtration run during and after treatment captures airborne mould spores and reduces indoor spore counts to normal levels. Recommended after any mould removal work and as an ongoing control measure in properties prone to recurring mould growth.

Black mould removal — Specialist removal for confirmed or suspected Stachybotrys chartarum, including full containment, HEPA filtration, affected material removal, and post-remediation clearance testing. Required for bathroom ceiling mould that has penetrated the plasterboard, and any black mould growth associated with water leaks or flooding.

Minor versus severe: For surface mould on non-porous areas affecting less than half a square metre, a misting treatment combined with a visual inspection is typically sufficient. Severe mould contamination — large affected areas, hidden mould within walls, black mould, or mould left untreated for an extended period — requires full remediation including containment, material removal where necessary, and clearance testing.

What Does a Mould Inspection and Hidden Mould Detection Service Include?

The inspection service covers a full visual assessment of all accessible areas of the property. Technicians document the location, extent, and surface type of all visible mould growth, and photograph findings for the written report.

Air sampling and surface sampling for laboratory analysis are available as part of the inspection where the species cannot be confirmed visually, where occupant health is a concern, or where documentation is required for insurance or compliance purposes. The technician recommends whether sampling is warranted based on the initial visual findings.

The written report produced after every inspection includes: the location and extent of all mould contamination found, identified moisture sources driving growth, an assessment of any hidden mould indicated by elevated humidity readings or thermal imaging, and a recommended treatment plan with cost estimate. Hidden mould — inside walls, under flooring, in the roof cavity — is identified and its cause documented so the remediation plan addresses the source, not just the surface.

What Is Mould Misting Treatment and When Is It Used?

Mould misting treatment uses a ULV (ultra-low volume) fogging machine to disperse a fine antimicrobial mist throughout a space. The particles are small enough to remain airborne and settle across all surfaces in the treated zone, including areas behind fittings, inside built-in cabinetry, and in ceiling cavities accessed through vents. The antimicrobial formulations used are biodegradable and non-toxic — safe for use in occupied homes.

Misting is proposed where surface cleaning alone would be insufficient: in roof spaces and subfloors where direct access is limited, in rooms where mould contamination is widespread rather than localised, and as a prevention treatment in properties where recurring mould growth is a known problem.

HEPA filtration units run throughout every misting treatment to capture displaced spores during the process. Post-treatment air quality checks using calibrated equipment confirm that indoor spore counts have returned to acceptable levels before the job is completed. Results are included in the post-treatment report.

How Does Black Mould Removal and Bathroom Ceiling Repair Work?

Black mould (Stachybotrys chartarum) is identified during inspection by its greenish-black colouration, slimy surface texture when wet, and a characteristically strong musty odour. It grows in sheets rather than isolated patches and is almost always associated with a sustained moisture source — a roof leak, a plumbing failure, or prolonged condensation on a poorly insulated ceiling surface. Laboratory testing confirms the species when the visual presentation is ambiguous.

For bathroom ceiling mould, the treatment steps follow the extent of penetration. Surface mould on a painted, non-porous ceiling can be treated with controlled cleaning and antimicrobial application. Where the mould has penetrated the plasterboard — indicated by softness or deformation of the ceiling surface, discolouration that can't be cleaned, or elevated moisture readings in the material — the affected section is removed and replaced under full containment conditions to prevent spore dispersal.

After removal and replacement, unmould recommends repainting the ceiling with a mould-resistant paint product. Anti-mould paint contains biocides that inhibit mould re-establishment on the surface. It is a second line of defence rather than a substitute for fixing the moisture source, but in bathrooms and laundries where humidity levels are persistently elevated, it meaningfully reduces recurrence risk.

What Is Unmould's Step-By-Step Process?

1. Inspect and document. The technician conducts a full visual inspection of the affected area, photographs all findings, and records moisture meter readings throughout the property. Thermal imaging identifies hidden dampness in walls and ceilings.

2. Test indoor air quality. Air sampling is conducted using standardised sampling methods to establish a baseline spore count and identify the mould species present where required.

3. Measure moisture sources and map contamination. Moisture readings and thermal imagery are used to map the full extent of contamination and trace moisture to its source. This step defines the scope of the remediation work.

4. Provide a treatment plan and cost estimate. You receive a written treatment plan detailing the work required, the methods to be used, and a transparent cost estimate before any remediation begins. In most cases this is provided on the same day as the inspection.

5. Perform mould cleaning and misting treatment. The remediation team isolates affected areas before work begins to contain spore spread. Cleaning, antimicrobial treatment, material removal where required, and misting treatment are completed in sequence. HEPA filtration runs throughout.

6. Conduct post-treatment clearance testing and report. Air and surface sampling after treatment confirms spore counts have returned to acceptable levels. Results are documented in a written clearance report, which you receive on completion of the job.

What Does Mould Cleaning and Removal Cost?

Inspection and report: $385. Covers one-two hours at the property, humidity sensor readings throughout, thermal imaging of suspect areas, a full written diagnosis report, and a recommended treatment plan with options. No obligation to proceed with remediation.

Remediation pricing is based on the scope of work identified during the inspection — the size of the affected area, the materials involved, whether containment and material removal are required, and any post-remediation clearance testing. Cost estimates are provided in writing before work begins. There are no hidden call-out charges beyond the $385 inspection fee.

Free quote: The free quote option covers properties with visible mould where the scope can be estimated from photographs and a description. Where the affected area is uncertain, suspected hidden mould is present, or the property has had flooding or significant water damage, the $385 on-site inspection provides the information needed to quote accurately.

Frequently Asked Questions About Hidden Mould, Black Mould, and Air Purification

Is mould testing always necessary?

No. In most cases, the visual inspection and moisture mapping provide enough information to scope and plan the remediation. Laboratory testing is recommended when the mould species cannot be visually confirmed, when a household member has a health condition that makes species identification clinically relevant, or when documentation is required for insurance, a landlord-tenant dispute, or compliance purposes.

How does misting differ from surface cleaning?

Surface cleaning removes visible mould from accessible surfaces using physical scrubbing and antimicrobial application. Misting disperses a fine antimicrobial mist through the air volume of the space and across all surfaces — including areas direct cleaning cannot reach, such as inside wall cavities, under flooring, in roof spaces, and behind fixtures. In most cases, both methods are used in combination: surface cleaning removes established colonies, and misting treats the broader air volume and reaches residual contamination in concealed areas.

What are the basic prevention steps after treatment?

Keep indoor humidity below 60% using ventilation and dehumidification where needed. Run bathroom extractor fans during and for 15 minutes after every shower. Fix water leaks within 48 hours. Inspect ceiling surfaces and under-sink areas every six months. In high-risk rooms, apply a light vinegar spray to ceiling surfaces monthly during the wet season.

When should you get a professional mould inspection rather than cleaning it yourself?

Call a professional when: the affected area is larger than half a square metre; the mould is on a water-damaged or soft surface; the mould returns within weeks of cleaning; black mould is suspected; occupants have respiratory symptoms that worsen at home; or the property has had flooding, a roof leak, or significant water ingress within the past 12 months.

How Do You Book a Mould Inspection or Cleaning Service?

Phone: Call Unmould directly to discuss your mould issue and confirm availability. Same-week bookings are available across Northern NSW in most cases. Mention if the situation is urgent — heavy rain damage, suspected black mould, or health symptoms in the household — and the team will prioritise accordingly.

Email: Send a brief description and photos of the affected area. The team will respond with availability and a preliminary assessment.

Online: Use the quote and booking form on the unmould website to describe the affected area, upload photos, and request a preferred inspection date.

Before your appointment, prepare access to the affected area — clear items away from under-sink cabinets, ensure the roof hatch or subfloor access is accessible if relevant, and note any rooms where the smell is strongest. This helps the technician work efficiently from the moment they arrive.

Request a free quote before booking where the affected area is clearly visible and can be photographed. For suspected hidden mould or any property with a water damage history, the on-site inspection at $385 is the recommended first step.

Where Does Unmould Operate and What Standards Apply?

unmould services Northern NSW including Byron Bay, Ballina, Lismore, Lennox Head, Evans Head, Casino, Murwillumbah, Tweed Heads, and the surrounding hinterland. Same-week response is available across the service area in most cases.

All work is carried out in compliance with applicable New South Wales safety and disposal regulations. Contaminated materials are bagged, sealed, and disposed of correctly. Antimicrobial products used in treatment are biodegradable and applied at concentrations within the manufacturer's approved safety guidelines. Post-remediation clearance testing follows recognised industry standards for acceptable indoor spore counts.

Property managers and landlords requiring compliance documentation receive a full written inspection report, a remediation record, and post-treatment clearance test results on completion of every job.